FORD AX4N

FORD AX4N
INDEX
DESCRIPTION & OPERATION.......................................... ...............................................................................
3
DIAGNOSIS & TESTING .....................................................................................................................................
4
COMPUTER SENSORS & SOLENOIDS.............................................................................................................. 13
APPLICATION CHART.......................................................................................................................................... 21
DIAGNOSTIC CODES............................... ............................................................................................................ 22
DISASSEMBLY........................................................................................................................................................ 25
VALVE BODY .......................................................................................................................................................... 42
COMPONENTS.............................................................................. ......................................................................... 46
ASSEMBLY............................................................................................................................................................... 91
SPECIFICATIONS................................................................................................................................................... 119
AUTOMATIC TRANSMISSION SERVICE GROUP
18639 S.W. 107TH AVENUE
MIAMI, FLORIDA 33157
(305) 670-4161
Copyright © ATSG 2006
2
Updated
March, 2003
INTRODUCTION
FORD AX4N
The Ford Motor Co. AX4N automatic transaxle is a four speed unit with total electronic controls and is
designed for operation in a transverse powertrain for front wheel drive vehicles. Currently found in Taurus,
Sable and Windstar vehicles. The electronic system controls the transaxle shift speeds and torque converter
clutch apply and release with solenoid actuated valves. These shift solenoids, when energized, coupled with the
hydraulic systems valve body, actuate various multi-plate clutch packs and bands to control the various gear
ratios through the planetary gear train. Line pressure is also electronic controlled with a solenoid and controlled
by the Powertrain Control Module. The PCM moniters numerous input sensors and sends the proper signals for
the gear ratio desired to produce optimum driveability.
No part of any ATSG publication may be reproduced, stored in any retrieval system or transmitted in any form or
by any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise,
without written permission of Automatic Transmission Service Group. This includes all text illustrations,
tables and charts.
The information and part numbers contained in this booklet have
been carefully compiled from industry sources known for their
reliability, but ATSG does not guarantee its accuracy.
Copyright © ATSG 1995
DALE ENGLAND
JIM DIAL
FIELD SERVICE CONSULTANT
TECHNICAL CONSULTANT
WAYNE COLONNA
ED KRUSE
TECHNICAL SUPERVISOR
TECHNICAL CONSULTANT
PETER LUBAN
GREGORY LIPNICK
TECHNICAL CONSULTANT
TECHNICAL CONSULTANT
JON GLATSTEIN
DAVID CHALKER
TECHNICAL CONSULTANT
TECHNICAL CONSULTANT
ROLAND ALVAREZ
JERRY GOTT
TECHNICAL CONSULTANT
TECHNICAL CONSULTANT
GERALD CAMPBELL
MIKE SOUZA
TECHNICAL CONSULTANT
TECHNICAL CONSULTANT
AUTOMATIC TRANSMISSION SERVICE GROUP
18635 SW 107TH AVENUE
MIAMI, FLORIDA 33157
(305) 670-4161
1
Service Information
AX4N
DIAGNOSIS AND TESTING
MAIN LINE
PRESSURE TAP
EPC PRESSURE TAP
EPC PRESSURE TAP
MAIN LINE
PRESSURE TAP
"NO" PRESSURE TAP
ON SIDE OF TRANSAXLE
COOLER LINE
FITTING
4
Service Information
43
AX4N