December 2015 - GM Service Insights

ServiceInsights
FO R
IN DEPE N D E N T
SE RV I C E
C E NTE R S
DEC 2015– JAN 2016
2016 GMC Yukon:
Where Premium Capability
and Precision Meet
More Inside:
■■ Service Procedures for the 2016 GMC Yukon 4WD
■■ Equal Parts Revolution and Evolution, Chevy 350 Engine Keeps Building its Legend
■■ Prepare for Cold Weather with Guaranteed, Cost-Cutting GM Transfer Cases
gmserviceinsights.com
GMSERVICEIN
3 / 2016 COPO Program
COPO Gen 6 debuts at SEMA Show.
GM ServiceInsights Online
More Genuine
GM Parts
GM SERVICE INSIGHTS MAGAZINE
resources and links.
4-5 / SEMA and ATRA Shows
GM provides training and product
previews at 2015 SEMA and ATRA shows.
Download this issue and past issues
of GM ServiceInsights magazine at...
6 / Snow Removal Drives Repairs
Cold weather means big business.
Editorial Advisory Board
Molly Bond, Amy Buzan, Jessica Earl, Stacie Kraysovic,
Steven Walczak, Jeffrey Walls
Special Thanks to These Contributors
www.gmserviceinsights.com
Curt Collins, Shelly Francisco, Amy Hartley,
3
Grant Powers, Chris Vermette
GM ServiceInsights Headquarters
2604 N.E. Industrial Dr., #230
N. Kansas City, MO 64117
Email: [email protected]
8 / GM Technical Training Clinics
Preparing independent shops today for
tomorrow’s tech.
Writers
Timothy Sramcik, Tom Zind
Compliments of your GM dealer.
We invite your
Publication
Manager
input and suggestions.
7 / Cost-Cutting GM Transfer Cases
GM replacement transfer cases keep work
vehicles on the road.
Editor
to the
editor to the above address. Letters submitted
imply the
right to edit and publish.
Please address letters
Tomas
Andersson
Chris
Oehlert
Every effort is made to ensure the accuracy of the information in the offers contained in this magazine. However,
printing and typographical errors may occur. These are not intentional and are not the responsibility of GM, any
dealer or the companies or individuals who create, produce and distribute this magazine. Offers and pricing may
change at any time without prior notification. The descriptions and specifications in this publication were in effect
at the time of approval for printing. General Motors reserves the right to change specifications without notice and
without obligation. Published letters do not necessarily reflect the opinions of General Motors or General Motors
Parts. General Motors, Detroit, MI 48202.
© 2016 General Motors • All rights reserved.
Art Director
Graphic Design
Doug Osburn
Brenda Eggert
7
9 / Chevy 350 Engine
Small block engine legend built on years
of power and reliability.
10 / 2016 GMC Yukon
Where premium capability and
precision meet.
10
11 / 2016 GMC Yukon Service
Step-by-step details on cylinder head
replacement.
14 / Duramax Diesel Engines
Brute power and reliability define this
lineup of GM engines.
15 / ACDelco Insider
14
18 / Genuine GM Rewards
Cold weather produces hot Genuine GM
Rewards for Maine shop owners.
GM ServiceInsights Headquarters
2604 N.E. Industrial Dr., #230
N. Kansas City, MO 64117
Email: [email protected]
Compliments of your GM dealer.
We invite your input and suggestions.
Please address letters to the editor to the above address. Letters submitted imply the right to edit and publish.
Every effort is made to ensure the accuracy of the information in the offers contained in this magazine. However,
printing and typographical errors may occur. These are not intentional and are not the responsibility of GM, any
dealer or the companies or individuals who create, produce and distribute this magazine. Offers and pricing may
change at any time without prior notification. The descriptions and specifications in this publication were in
effect at the time of approval for printing. General Motors reserves the right to change specifications without
notice and without obligation. Published letters do not necessarily reflect the opinions of General Motors or
General Motors Parts. General Motors, Detroit, MI 48202. © 2016 General Motors • All rights reserved.
GM ServiceInsights Online
Download this issue and past issues
at: www.gmserviceinsights.com
2
Dec 2015 – Jan 2016 ServiceInsights
NSIGHTS.COM
by Tom Zind
COPO Gen 6 Debuts
Drag-strip Camaro sports new trim,
at SEMA look; powerful engine options.
The COPO Camaro is officially back, and more stunning than ever. GM unveiled the newest
generation of the legendary, drag strip-only Chevrolet Camaro at the Specialty Equipment
Market Association (SEMA) show in Las Vegas, Nov. 2.
The newest COPO was built off the template of the all-new Gen 6 Camaro
that made its debut as the 2016 model-year Camaro this fall. This marks the fifth
consecutive year GM has produced a modern-era COPO Camaro. The specially
built, limited-production car has its roots in a special order Camaro GM produced
only once before its resurrection in 2012. That was in 1969, when GM built a
limited number of what came to be known as Central Office Production Order
high-performance Camaros.
For more pictures and
to read the rest of the
story on the 2016 COPO
Camaro Program, go to
gmserviceinsights.com
Dec 2015 – Jan 2016 ServiceInsights
3
GMSERVICEIN
by Chris Oehlert
Chevy and Chevy Performance
Make Impact at SEMA Show
For more than 100,000 automotive professionals, the annual
pilgrimage to Las Vegas served up the sights, sounds and sheer
excitement that drive a multi-billion-dollar industry.
Chevrolet booth visitors got a firsthand look at the full lineup of new models for
2016 including new looks and features for the agile 2016 Camaro, as well as a 2016
Silverado personalized by Realtree® and Bone Collector™ Michael Waddell.
For “cool factor,” look no further than the 2016 Chevy Camaro Krypton concept
vehicle. For a mere $80,000, you can apply this electroluminescent paint that, with
the flip of a switch, activates an illuminated graphic of Chevrolet bow ties on the
doors and fenders.
Chevy Performance wasted no time in making its mark with the announced
return of the legendary COPO Camaro program in 2016. True to its 1960s heritage,
the limited-production-run COPOs will
consist of just 69 vehicles. These racetrack-only powerhouses will once again
be sold through a lottery to some lucky
Camaro enthusiasts. Visit www.chevrolet.
com/performance/copocamaro/ for your
chance to purchase a 2016 COPO Camaro.
For more pictures and to
read the rest of the story on
the 2015 SEMA Show, go to
gmserviceinsights.com
4
Dec 2015 – Jan 2016 ServiceInsights
2016 Chevy Camaro Krypton.
LT4 6.2L Crate Engine.
NSIGHTS.COM
by Tomas Andersson
ATRA Gives GM
Great Exposure for
its Transmissions
For the second year in a row, the ATRA Powertrain Expo
was held at the Rio All-Suite Hotel & Casino. The show
ran from Thursday, Oct. 29 through Sunday, Nov. 1.
GM booth at ATRA stayed busy.
The GM Transmission Team enjoyed a steady flow of visitors
throughout the show. Stacie Kraysovic, Product Manager Transmissions
and Advanced Technologies and crew saw transmission professional after
transmission professional stop by to check out the hands-on cut-away
displays of a GM 8-speed transmission, 6-speeds and TEHCM modules.
Showgoers were able to meet engineers and other GM technical staff and
learn about the products and services that GM offers through its parts
dealer network.
ATRA Powertrain Expo Key Event for GM’s
Transmission Team
Kraysovic said, “It’s important for GM to get our message and product in
front of the people in the transmission repair industry.” The ATRA audience
is a great mix of transmission techs and shop owners, but it also attracts
Dan Nagy engaged in the GM booth discussing TEHCM
students and teachers that come to stay on top of current technology and
programming with a show attendee.
developments in the transmission world.
Kraysovic complimented the ATRA show as a, “perfect medium to
spread the Genuine GM remanufactured transmissions value story.
GM transmission assemblies are engineered and built specifically for
TIS2Web
each GM vehicle. The latest GM engineering updates provide OEM
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With pu
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standards equal to those in new GM transmissions and components.
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Plug-n-Play designs help minimize hoist time and maximize labor
Limited
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No-Charg me Offer —
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“To me, it was particularly validating, when I spoke with
For more pictures and
a transmission shop owner who thanked us for making a
to read the rest of
subscription to TIS2Web available at no cost. It was so nice
the story on the 2015
to hear that it really is easy and hassle-free to buy, install and
ATRA Expo, go to
gmserviceinsights.com
program a GM 6-speed transmission,” said Kraysovic.
Through the end of 2015, shops can get a no-cost, 2-day
TIS2WEB subscription with the purchase of a GM 6-speed
transmission.
Friday morning of the expo, GM took center stage with a class on TEHCM
programming and diagnostics. GM Instructor Dan Nagy from GM’s Western
region taught “Diagnose & Reprogram Transmission Electro Hydraulic Control
Modules (TEHCMs)” to a capacity crowd.
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14
Dec 2015 – Jan 2016 ServiceInsights
5
GMSERVICEIN
by Timothy Sramcik
GM Replacement Transmissions
Offer Value to Shops and Customers
One of the keys to selling highdollar parts like transmissions is
offering value.
Just ask Mitch Holmes, owner of Aroostook Auto Tech
in Houlton, Maine. During the winter months, his shop sees
a steady line of work vehicles from the area’s plowing and
timber businesses needing replacement 4-and 6-speed
transmissions. For him and his customers, using Genuine
GM Parts just make sense.
Holmes points out that GM transmissions arrive
tested and guaranteed. They carry a 3-year, 100,000-mile
warranty that covers both parts and labor on new and
remanufactured models.
“Getting the labor included is huge,” Holmes says.
“If something happens to that transmission, my time
is covered.” Just as nice, his GM Parts dealer can deliver
transmissions usually the same day, the next morning at
6
Dec 2015 – Jan 2016 ServiceInsights
the latest.
Because they’re
built to factory
specifications, GM
transmissions are ready for trouble-free installations.
Should Holmes have any questions, he has quick
access to live technical help. One call to the GM Powertrain
Contact Center at 866-637-2787 puts him in contact
with GM professionals. The Center provides immediate
assistance with installation and parts information, along
with ordering assistance.
That adds even more convenience and savings—in time
and money—for shops and customers. Benefits like those
can lighten the load on the heaviest of repair jobs.
NSIGHTS.COM
by Timothy Sramcik
Prepare for Cold Weather
with Guaranteed, Cost-Cutting GM Transfer Cases
As temperatures drop across the
country, accumulations of mud,
ice and snow build. So do the lines
of customers needing replacement
transfer cases for hard-charging
pickups, SUVs and 4X4s.
They’re looking for quick service, affordable options
and durable parts to get them back on the road and trail
for the long term. Genuine GM Parts has them covered
on all three points.
Long-term reliability comes with the 3-year, 100,000mile warranty that covers both parts and labor on all GM
transfer cases. That includes new and cost-cutting GM
remanufactured versions.
The guarantee alone makes GM remans a serious
upgrade over rebuilt aftermarket options. GM has ramped
up the value even more. Aftermarket rebuilds typically
just swap out worn components with new ones. GM goes
several steps further. Its remans also receive a host of
other new components, updating them with the latest GM
Engineering enhancements for long life. Then, the reman
supplier machines the transfer cases to ensure that they
meet OE factory specifications.
For more pictures and to read the rest
of the story on GM transfer cases, go to
gmserviceinsights.com
Dec 2015 – Jan 2016 ServiceInsights
7
GMSERVICEIN
by Timothy Sramcik
GM Technical Training Clinic
Programs Prepare Independent
Shops Today for Tomorrow’s Tech
Tomorrow comes a lot sooner than
it used to in the auto service world.
Technology makes its way from an
engineer’s desk to the showroom
and eventually to repair shops with
Camaro-like velocity.
8
Dec 2015 – Jan 2016 ServiceInsights
That’s no problem for Jayson Wolcott, owner of 212th
Automotive in Kent, Wash. GM Technical Training Clinic
programs hosted by his local GM wholesale parts dealer
have his shop ready to do business.
He most recently attended clinics on Supplemental
Restraint Systems, Interior Climate Control and New
Vehicle Technology. “They’re all awesome,” says Wolcott,
who brings along his entire staff of technicians and
service writers.
“It doesn’t cost them anything, and they know the
information is valuable,” he adds.
For more pictures and to read
the rest of the story on the GM
Technical Training Clinics, go to
gmserviceinsights.com
NSIGHTS.COM
by Timothy Sramcik
Equal Parts Revolution and Evolution,
the Chevy 350 Engine Keeps Building its Legend
As 2015 comes to an end, some reflection
on automotive history is in order:
• Sixty years ago, GM turned the keys on a revolution
when it introduced the small block V8.
• A decade later, it fired the shot heard round the
automotive world when the 1967 Camaro roared
out of Detroit sporting its version of the small block,
the Chevy 350.
• Today, a legend remains alive and well as the 350
continues thrilling gear heads and picking up new fans.
Its enduring reliability and pliability found the 350
a home in numerous GM models over multiple eras. It
powered performance heavy vehicles like the Corvette,
Impala, El Camino, Chevelle and Nova. Showcasing its
versatility, the 350 then moved into large road cruising
Buick and Oldsmobile sedans, along with luxurious
Cadillacs. The reliable “little engine that could” even made
its way to full size vans and trucks, including the Hummer.
Rock solid engineering.
There’s plenty of reason to believe the future remains
bright for an engine forged during the birth of rock and roll
and built during the dawn of muscle. It all comes down to
rock solid engineering and adaptability.
During a 16-year run in production vehicles, the 350
continually evolved in power and refinement. Horsepower
more than doubled from 145hp-370hp. Fuel efficiency rose,
emissions dropped sharply and new technology was added,
though the fundamental design remained the same.
For more pictures and to read
the rest of the story on the
legendary Chevy 350 engine, go to
www.gmserviceinsights.com
Dec 2015 – Jan 2016 ServiceInsights
9
GMSERVICEIN
by GM Media
2016 GMC Yukon:
Where Premium Capability
and Precision Meet
The GMC Yukon family of full-size SUVs provides the capability,
refinement, safety, performance and connectivity discerning
customers expect. For 2016, Yukon, Yukon XL, Yukon Denali and
Yukon XL Denali expand the Enhanced Driver Alert Package; and add
two 22-inch wheel options, hands-free liftgate for SLT models, two
new exterior colors and a capless fuel fill feature.
Yukon at a Glance
Yukon SLE and SLT models are powered by advanced EcoTec3
engines that deliver more horsepower and torque with the
segment’s best V-8 fuel economy. EPA-estimated highway fuel
economy is 23 mpg with the standard 5.3L engine (2WD models).
Yukon Denali’s exclusive 6.2L engine makes the most power in the
segment – 420 horsepower and 460 lb-ft of torque. It’s matched
to an eight-speed automatic transmission that further enhances
efficiency and refinement.
10
Dec 2015 – Jan 2016 ServiceInsights
For more pictures and to
read the rest of the story on
the 2016 GMC Yukon, go to
www.gmserviceinsights.com
NSIGHTS.COM
2016 GMC Yukon Repair Procedure
Even though the GMC Yukon is a new vehicle, service and repair information resources are a click away at www.gmtechinfo.com —
Electronic Service Information. Technicians and shop owners can log on to the site to gain access to subscription services for service
procedures and repair manuals. A complete Service Manual is accessible 24/7 through a subscription to the site. Free collision repair
procedures will soon be available for the vehicles by going to www.genuinegmparts.com.
2016 GMC Yukon Cylinder Head Replacement — Right Side
Special Tools
J 42385-200 Common Thread Repair Kit
J 45059 Angle Meter
1
2
3
4
5
6
7
Remove the oil level indicator. Refer to Oil Level
Indicator Tube Replacement.
1
Remove the intake manifold. Refer to Intake Manifold
Replacement.
Remove the coolant air bleed pipe. Refer to Engine
Coolant Air Bleed Pipe Replacement.
Remove the right exhaust manifold. Refer to Exhaust
Manifold Replacement - Right Side.
Remove the pushrods. Refer to Valve Rocker Arm and
Push Rod Replacement.
Remove the negative battery cable stud (1) from the
front of the right cylinder head.
Remove the negative battery cable terminal (2)
and the engine harness terminal (3) from the
cylinder head.
Note: The cylinder head bolts are of a torque-to-yield
design and are NOT to be reused.
8
8
Remove and discard the cylinder head bolts (1, 2).
Caution: After removal, place the cylinder head on
2 wood blocks in order to prevent damage to the sealing
surfaces.
9
10
Remove the cylinder head (3).
Remove and discard the cylinder head
gasket (1).
Dec 2015 – Jan 2016 ServiceInsights
11
GMSERVICEIN
11
If required, clean and inspect the cylinder head.
Refer to Cylinder Head Cleaning and Inspection.
Installation Procedure
Warning: Wear safety glasses in order to avoid eye
damage.
Caution: Clean all dirt, debris, and coolant from
the engine block cylinder head bolt holes. Failure to
remove all foreign material may result in damaged
threads, improperly tightened fasteners or damage to
components.
Note: If installing a new cylinder head it is necessary to
install a new engine coolant air bleed plug into the rear
coolant passage of the cylinder head. Refer to Cylinder
Head Assembly.
Note: • Do not reuse the cylinder head bolts. Install NEW
cylinder head bolts during assembly.
• Do not use any type of sealant on the cylinder
head gasket (unless specified).
10
1
1
Clean the engine block cylinder head bolt holes, if
required. Thread repair tool J 42385-107, found in
J 42385-200 common thread repair kit may be used to
clean the threads of old threadlocking material.
2
3
4
Spray cleaner or equivalent into the hole. Refer to
Adhesives, Fluids, Lubricants, and Sealers.
Clean the cylinder head bolt holes with
compressed air.
Check the cylinder head locating pins for proper
installation (a) 8.3 mm (0.327 in).
Note: When properly installed, with FRONT on the right
side, the tab on the cylinder head gasket should be located
right of center.
5
6
7
Install the NEW cylinder head gasket (1) onto the
locating pins.
Install the cylinder head (3) onto the locating pins.
Install the NEW cylinder head bolts (1, 2).
Caution: Refer to Fastener Caution.
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Dec 2015 – Jan 2016 ServiceInsights
5
NSIGHTS.COM
8
Tighten the cylinder head bolts.
6
1. T
ighten the M11 cylinder head bolts (1-10) a first pass
in sequence to 30 Y (22 lb ft).
2. T
ighten the M11 cylinder head bolts (1-10) a second
pass in sequence to 90 degrees using J 45059 angle
meter.
3. T
ighten the M11 cylinder head bolts (1-10 ) a final
pass to 70 degrees in sequence using J 45059 angle
meter.
4. Tighten the M8 cylinder head bolts (11-15) to
30 Y (22 lb ft). Begin with the center bolt (11) and
alternating side-to-side, work outward tightening
all of the bolts.
9
8
Ensure that the engine harness terminal (3) is
positioned behind the negative battery cable
terminal (2).
10
11
Position the negative battery cable terminal (2) to
the cylinder head.
Install the negative battery cable stud (1) to the
front of the right cylinder head and tighten the
stud to 25 Y (18 lb ft).
12
13
14
15
16
Install the pushrods. Refer to Valve Rocker Arm
and Push Rod Replacement.
Install the right exhaust manifold. Refer to
Exhaust Manifold Replacement - Right Side.
9
Install the coolant air bleed pipe. Refer to Engine
Coolant Air Bleed Pipe Replacement.
Install the intake manifold. Refer to Intake
Manifold Replacement.
Install the oil level indicator. Refer to Oil Level
Indicator Tube Replacement.
This example of the 2016 GMC Yukon 4WD repair
procedure is just one of many found in their Service
Repair Manuals. By following the proper repair procedures,
technicians can ensure that each vehicle maintains its
solid performance and uncompromised safety features
for the life of the vehicle.
Dec 2015 – Jan 2016 ServiceInsights
13
GMSERVICEIN
by Timothy Sramcik
Duramax Line of Diesel Engines
Continues to Grow, Innovate
Repairers used to share a joke about the
most effective vehicle anti-theft device—
the word DIESEL stamped on the back.
Times certainly have changed. Today’s diesel engines are
quiet, clean and in demand. GM’s Duramax lineup has done
its part to change the diesel game with their trump card,
industry-leading innovation.
That will be on display when the newest Duramax diesel
ramps up the torque in the 2016 GMC Canyon and Chevy
Colorado. The Duramax 2.8 liter generates 369 lb-ft of peak
torque at 2,000 rpm, boosting tow ratings to over 7,500
pounds using a turbocharged four-cylinder platform. Yes, a
four-cylinder engine will be churning out those numbers.
Engineered for fit and reliability.
6.6L V8 Duramax LBZ
Production years: 2006–2007
Power: 360 hp and 650 lb-ft of torque
Standout feature: The LBZ quickly became a favorite for
tuners thanks to a stronger block and new piston design,
larger connecting rods and heads that could handle more
pressure.
6.6L V8 Duramax LMM
Production years: 2007–2010
Power: 365 hp and 660 lb-ft of torque
Standout feature: Duramax became significantly cleaner
to meet strict new federal emissions standards, while
also adding power.
Despite rugged Neanderthal-like power, Duramax
engines benefit from state-of-the-art technology and
fine tuning. The best way to swap out those power plants
or parts is from the local GM dealer, whose parts are
engineered for an easy fit and long term reliability.
That’s nothing new for Duramax. Here’s a look at 15
years’ worth of changes that rocked the diesel landscape.
6.6L V8 Duramax LML
6.6L V8 Duramax LB7
2.8L 4-Cylinder Duramax
Production years: 2001–2004
Power: 300 hp and 520 lb-ft torque
Standout feature: Received the “Best of What’s New
Award” from Popular Science magazine and chosen two
consecutive years by Ward’s magazine as one of the
“Ten Best Engines in the World.”
14
Dec 2015 – Jan 2016 ServiceInsights
Production years: 2011–present
Power: 397 hp and 765 lb-ft of torque
Standout feature: Engineers boosted horsepower,
added a whopping 105 lb.-ft. of torque, slashed
emissions further and enabled 20 percent biodiesel
mixtures.
Production years: Introduced 2016
Power: 188 hp and 369 lb-ft of peak torque
Standout feature: After five years of duty overseas,
the 2.8L comes to American shores to be showcased
in top selling mid-sized pickup trucks.
NSIGHTS.COM
O v e r
1 0 0
Ye a r s
o f
E x p e r i e n c e
Professional Parts For
Duramax Diesel Engines
GM offers several premium maintenance parts for the 6.6L Duramax
Diesel engine. Each is designed and tested to ensure quality and longlasting performance.
Professional Fuel Filters (#TP3018) Thoroughly tested to meet
requirements for fit, form and function, Professional Fuel Filters protect
combustion systems from contaminants.
WHAT’S INSIDE
IN THE NEWS
Professional Parts for Duramax Diesel Engines. . . . . . . . .pg 15
THE SERVICE BAY
GM Air Shock/Strut Replacement Tips. . . . . . . . . . . . . . . . . . pg 16
SIDI Hard Start Cold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pg 17
Professional Glow Plugs (#9G) Designed to give diesel engines enough
heat for cold starts and maintain ignition in all cylinders, Professional
Glow Plugs improve throttle response and reduce emissions.
Professional Reman Diesel Fuel Injectors (#19327361) The chromeplated control valve seats match the Original Equipment design. Key
assemblies are 100-percent replaced and remaining components are
completely disassembled, cleaned and tested to specifications, providing
maximum performance with fewer exhaust emissions.
Professional Engine Oil Filters (#PF2232 and #PF2232F)
Outstanding filtering capabilities, ensure a clean supply of oil is delivered
to diesel components. Professional Engine Oil Filters are designed
for Original Equipment filter changes or synthetic drain intervals —
whichever is longer.
Professional Air Filters (#A3141C) Equipped with tight seals to keep
unfiltered air out of the combustion chamber, Professional Air Filters
deliver excellent filter capacity efficiency and flow management for
enhanced performance.
Dec 2015 – Jan 2016 ServiceInsights
15
4
2015 ISSUE 4
ACDelco
Air Shock/Strut
ReplacementTips
Tips
GM
Air Shock/Strut
Replacement
When servicing the air shocks/struts on 1995-2003 Oldsmobile Aurora; 1997-2005 Buick Park Avenue; and 2000-2005 Buick
LeSabre and Pontiac Bonneville models equipped with the automatic leveling system, there are several steps to take for correct
installation and a proper repair. The leveling system will add air pressure to the shocks to raise the vehicle up to a level ride height
under all types of load conditions. The system has a “no load” operating pressure of only 10-12 psi.
Verify Compressor Operation
Before replacing the air shocks/struts (P/N 504-165), verify
that the air compressor on the vehicle is cycling. The air
compressor must pressurize and maintain pressure in the load
leveling system.
Turn on the ignition and listen for the compressor to cycle. It
should cycle on approximately 30-45 seconds after the ignition
is turned on and then run for approximately 5-10 seconds to
pressurize the system. The compressor will only cycle at each
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lower it against the level position sensor.
Use soapy water
to inspect any
suspected leaks
in the shock
absorber air
sleeves, air tubes,
air lines and
connections of the
leveling system.
&KHFNWKHDLUOLQHVDQGĆWWLQJVIRUOHDNV
Be sure to check
for damaged lines
due to abrasion with the body or impact damage from road
debris. Repair as necessary.
Cycle the Shock/Strut
Before installing new shocks/
struts, cycle the shock to
spread the lubricant inside the
diaphragm. To cycle a shock,
LQćDWHWKHDLUGLDSKUDJP
WKURXJKWKHDLUĆWWLQJXQWLO
the shock fully extends, and
then fully collapse the shock
by pushing the upper mount
all the way down. Repeat this
procedure at least three times.
,QćDWHWKHDLUGLDSKUDJP
WKURXJKWKHDLUĆWWLQJWR
VSUHDGWKHOXEULFDQW
Be sure to follow the appropriate
service information for the
vehicle being repaired when installing the shocks/struts.
16
Dec 2015 – Jan 2016 ServiceInsights
Test the System
After installation, testing the system is critical to ensuring
damper endurance and proper operation. The system must
maintain minimum operating pressure. Before test driving the
vehicle, perform the following procedure to check the system
for proper function:
• Start the engine and let it run for 1.5-3 minutes.
• The air compressor should cycle on and off within 3
minutes.
• If the compressor cycles on and off, add approximately 200
lbs. in the cargo compartment of the vehicle. It is necessary
to compress the vehicle suspension approximately one
inch to activate the compressor and level the vehicle. The
air compressor should cycle on to level the vehicle within
1.5–3 minutes.
• If the vehicle levels properly, proceed to test drive the
vehicle.
Replace the Air
Compressor Dryer
Spring to Enhance
Performance
On GM vehicles
equipped with a
leveling system, the
system’s no load
operating pressure
can be increased
by replacing the
spring in the air
compressor dryer. A
5HSODFHWKHGU\HUVSULQJ
replacement spring is
supplied in kit P/N PK097 (88985665). The kit has everything
QHHGHGWRLQVWDOOUHSODFHPHQWVKRFNVLQFOXGLQJDLUOLQHVĆWWLQJV
and the replacement spring.
The new spring will increase the minimum operating pressure
of the leveling system to 25 psi. This is required for enhanced
operation of the replacement shocks/struts.
2015 ISSUE 4
SIDI Hard Start Cold
•
•
•
•
•
•
•
2009-2014 Buick Enclave
2010-2014 Buick LaCrosse, Regal
2012-2014 Buick Verano
2013-2014 Cadillac ATS, XTS
2008-2014 Cadillac CTS, SRX
2008-2010 Cadillac STS
2010-2014 Chevrolet Camaro
On models equipped with Spark
,JQLWLRQ'LUHFW,QMHFWLRQ6,',RU
6-cylinder engines experiencing
a hard start or extended crank
condition, or black smoke from
the exhaust when starting, there
are several basics tests to perform
during diagnosis.
First, verify fuel quality. Next,
perform a compression test. On V6
engines, there should be 150–185
psi average compression. No cylinder
should be less than 140 psi. On
4-cylinder engines, there should be
170–200 psi average compression.
No cylinder should read less than
100 psi. Also install a vacuum gauge
prior to a cold start and watch the
needle for signs of a sticking valve.
In addition, perform a fuel system
check. The following tests should be
done after an overnight cold soak.
Set up the vehicle with the CH48027 Digital Pressure Gauge or
equivalent and J-37287 Fuel Line
with Shut-Off Valve or equivalent.
Run the engine to purge all air from
the fuel system and then shut off the
engine and let it sit overnight. Unplug
WKHLQMHFWRUKDUQHVVFRQQHFWRU
The next morning, turn the key on
but do not start the engine. Use the
CH-48027 Digital Pressure Gauge or
equivalent to verify prime pulse fuel
pressure is between 55–60 psi.
Use the Tech 2 or GDS 2 set in
36,FRQĆUPWKHIXHOUDLOSUHVVXUH
•
•
•
•
•
•
2012-2014 Chevrolet Caprice, Caprice
PPV, Captiva Sport, Impala
2010-2014 Chevrolet Equinox
2009-2014 Chevrolet Traverse
2009-2014 GMC Acadia
2010-2014 GMC Terrain
2009-2010 Saturn Outlook
RUNNING THE BUSINESS
TIS2Web Videos Show How To Save
Money With Flash Programming
sensor reading, which should always
be close to what the Digital Fuel
Pressure Gauge reads for low side
pressure during this test. This will
DOVRFRQĆUPLIWKHUHLVDQRIIVHWZLWK
the fuel rail pressure sensor.
Next, crank the engine to see if
LWĆUHV:LWKWKHLQMHFWRUKDUQHVV
FRQQHFWRUVXQSOXJJHGWKHLQMHFWRUV
are electrically disabled so no fuel
should be delivered to the engine.
,IWKHHQJLQHĆUHVRQHRUPRUH
LQMHFWRUVKDYHEHHQOHDNLQJDQGKDYH
introduced fuel into one or more
cylinders.
5HFRQQHFWWKHLQMHFWRUKDUQHVV
connectors, start the engine, let it
run for 10 minutes, and then shut
down the engine. Close the shut-off
valve in the J-37287 Fuel Line or
equivalent, which will now separate
the engine side of the fuel system
from the rear section of the returnless fuel system.
Using the Digital Pressure Gauge,
look for a drop in the high side of
the fuel system by monitoring low
side pressure. With the J-37287 or
equivalent valve closed, the system
should hold at least 60 psi for a few
hours. If there is a rapid decrease
in fuel pressure, this would indicate
a leaking high pressure fuel pump
RUOHDNLQJLQMHFWRUVVLQFHWKHIXHO
pressure cannot bleed off to the tank
as the fuel line shut-off valve
is closed.
ACDelco Techline Information System
(TIS2Web) tutorial videos have helped
thousands of independent repair technicians
GLDJQRVHDQGćDVKSURJUDP*0YHKLFOHV
Twelve comprehensive videos provide
detailed steps for purchasing, installing
or setting up TIS2Web software, which is
necessary before running diagnostics or
ćDVKLQJDFRQWUROPRGXOH
Most of the videos are four minutes or
less and provide answers to the critical
topics that generate the most questions at
ACDelco’s Aftermarket Technical Support
Center.
TIS2Web “Getting Started” videos support
users who need guidance with accessing
TIS2Web:
• How to register – set up a TIS2Web
account
• How to subscribe – short, medium or
long-term subscriptions
• How to access – login to your GMSi or
TIS2Web account
The tutorials show techs how to quickly get
through the subscription process and get
back to repairing their customer’s vehicle.
Visit www.gmtis2webhowto.com to view
these and the full suite of TIS2Web tutorials,
which are all available at no charge.
To access TIS2Web, go to
www.acdelcotechconnect.com or log on at
www.acdelcotds.com.
Dec 2015 – Jan 2016 ServiceInsights
17
9
GMSERVICEIN
by Timothy Sramcik
Cold Weather Produces Hot
Genuine GM Rewards for Maine
Shop Owners
An old saying declares that a happy spouse is
the key to a happy life. Genuine GM Rewards
and parts are helping this ring true for some
Maine shop owners.
Lori Holmes, co-owner with husband Mitch of Aroostook
Auto Tech in Houlton, Maine, recently treated herself to a
new iPad after redeeming her Rewards points. Mitch didn’t
mind being left out of the transaction. He’s basking in the
other benefits of doing business with GM Parts.
“They provide a 3-year, 100,000-mile warranty that
covers both parts and labor,” says Mitch. “That gives me a
tremendous amount of comfort.”
A big part of that comfort is the confidence that comes
with using parts that keep hardworking customers on the
job. Sitting in the midst of timber country and the Snow
Belt, Aroostook Auto Tech does big business replacing
pickup truck engines and transmissions used for hauling
and plowing.
Just last year, the season’s first storm dumped 18
inches of snow in the area. When Mitch pulled into work
the following morning, seven plows already were lined
up needing service. None could afford to be left waiting
around for repairs.
Quick Deliveries Get Customers Back
on the Road
For Mitch, that was no problem. “Our parts dealer is
120 miles away but can get us anything we need either
that day or by the next morning,” he says. “We always get
excellent service.”
The shop also gets tested and guaranteed parts it can
expect to hold up over the long haul. That fact led Mitch to
do a double take last winter when one of the seven plows
returned a week after a transmission job needing another.
He couldn’t accept parts failure. Some quick detective work
uncovered the true culprit—operator error.
The inexperienced, youthful driver was burning through
transmissions because he wasn’t plowing properly. Mitch
“Our parts dealer is 120 miles away but can get us
anything we need either that day or by the next
morning. We always get excellent service.”
—Mitch Holmes
18
Dec 2015 – Jan 2016 ServiceInsights
NSIGHTS.COM
INSTALL GENUINE GM PARTS — SMART, EASY AND REWARDING
COLLISION PARTS
LIGHTING ASSEMBLIES, DOORS, MIRRORS & WHEELS***
Estimate Written as non-OE Part
(Aftermarket Part Conquested to GM OE)
Estimate Written as OE Part
POWERTRAIN AND MECHANICAL PARTS
REWARD
2% of
List Price
***Reward qualifications:
­— Insurance estimates only
­— Last two model years excluded
­— Exclusive to CollisionLink® users
­— Excludes orders paid on 100% OE rebate programs
(APN, Axalta and Dealer Body Shops)
PRODUCT
REWARD
Engine and Transmission Assemblies*
50 Points Each
Transfer Cases
25 Points Each
Powertrain Component Parts**
4% Dealer List
Radiator Assemblies
2% Dealer List
*Excludes Chevrolet Performance Engine and Transmission assemblies.
**Excludes hybrid batteries and parts on national control.
Each Reward Point = $1
www.genuinegmrewards.com
refused to let him leave the lot until he personally
conducted an impromptu training session to avert a third
preventable visit.
Typically, most Aroostook customers don’t require
quite that level of attention. Mitch says he simply covers
their service options and they usually opt for GM Parts.
“Customers appreciate the value,” he says.
Points Add Up Fast
The icing on the cake is the GM Rewards points adding
up with similar ease. Aroostook’s dealer rep even made
shopping more convenient by helping to set up the shop’s
account on the Genuine GM Rewards website. Lori says
redeeming points is a breeze.
She’s even considering letting Mitch in on the fun,
eventually. “I might let him pick something out—if I like it
too,” she says mischievously.
Since they’re both happy, that sounds like a solid plan.
Dec 2015 – Jan 2016 ServiceInsights
19
CLIP AND PLACE BY YOUR TELEPHONE OR COMPUTER
Give us a call for all of your Genuine GM Parts
needs — all at one convenient location.
All the stories in Service Insights, additional content and pictures available at gmserviceinsights.com