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1 INDEXC opyright ATSG 2006F O R D A X 4 N2 DESCRIPTION & .. 3 DIAGNOSIS & TESTING .. 4 COMPUTER SENSORS & 13 APPLICATION 21 DIAGNOSTIC .. 25 VALVE BODY .. 119 AUTOMATIC TRANSMISSION SERVICE GROUP18639 107TH AVENUEMIAMI, FLORIDA 33157(305) 670-4161 INTRODUCTIONFORD AX4 NAUTOMATIC TRANSMISSION SERVICE GROUP18635 SW 107TH AVENUEMIAMI, FLORIDA 33157(305) 670-4161 DALE ENGLANDFIELD SERVICE CONSULTANTED KRUSETECHNICAL CONSULTANTWAYNE COLONNATECHNICAL SUPERVISORPETER LUBANTECHNICAL CONSULTANTJIM DIALTECHNICAL CONSULTANTGREGORY LIPNICKTECHNICAL CONSULTANTJERRY GOTTTECHNICAL CONSULTANTJON GLATSTEINTECHNICAL CONSULTANTDAVID CHALKERTECHNICAL CONSULTANTROLAND ALVAREZTECHNICAL CONSULTANTGERALD CAMPBELLTECHNICAL CONSULTANTNo 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.

2 This includes all text illustrations, tables and information and part numbers contained in this booklet havebeen carefully compiled from industry sources known for theirreliability, but ATSG does not guarantee its ATSG 1995 UpdatedMarch, 20031 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.

3 The PCM moniters numerous input sensors and sends the proper signals for the gear ratio desired to produce optimum SOUZATECHNICAL CONSULTANTS ervice Information AX4N4 DIAGNOSIS AND TESTINGMAIN LINEPRESSURE TAPEPC PRESSURE TAPMAIN LINEPRESSURE TAPEPC PRESSURE TAP"NO" PRESSURE TAPON SIDE OF TRANSAXLECOOLER LINEFITTINGS ervice Information AX4N43