INDEX

Copyright © ATSG 2006

FORD A4LD

SERVICE & IDENTIFICATION.......................................... ............................................................................... 4

ENGINE VACUUM ....................................................................... ....................................................................... 10

AIR PRESSURE CHECKS.................................................... ................................................................................. 16

TROUBLE SHOOTING........................................................................................................................................... 20

REMOVAL & INSTALLATION................. ............................................................................................................ 41

TEAR-DOWN & ASSEMBLY................................................................................................................................. 49

VALVE BODY ...................................................................... ................................................................................... 86

DRUM COMPONENTS........................................................ ......... ......................................................................... 105

SPECIFICATIONS.................................................................. ................................................................................ 111

AUTOMATIC TRANSMISSION SERVICE GROUP18639 S.W. 107TH AVENUEMIAMI, FLORIDA 33157

(305) 670-4161

INTRODUCTIONFORD A4LD

AUTOMATIC TRANSMISSION SERVICE GROUP18639 S.W. 107TH AVENUEMIAMI, FLORIDA 33157

(305) 670-4161

DALE ENGLANDFIELD SERVICE CONSULTANT

ED KRUSETECHNICAL CONSULTANT

WAYNE COLONNATECHNICAL SUPERVISOR

PETER LUBANTECHNICAL CONSULTANT

JIM DIALTECHNICAL CONSULTANT

GREGORY LIPNICKTECHNICAL CONSULTANT

JERRY GOTTTECHNICAL CONSULTANT

JON GLATSTEINTECHNICAL CONSULTANT

DAVID CHALKERTECHNICAL CONSULTANT

ROLAND ALVAREZTECHNICAL CONSULTANT

GERALD CAMPBELLTECHNICAL CONSULTANT

1

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 havebeen carefully compiled from industry sources known for their

reliability, but ATSG does not guarantee its accuracy.

Copyright © ATSG 2005

UpdatedOctober, 2002

We wish to thank Ford Motor Company for the information and illustrations that have made this booklet possible. This booklet contains the general description, diagnosis, repair and overhaul procedures necessary to service the Ford A4LD overdrive transmission.The A4LD is a rear wheel drive, four speed automatic transmission, used in both import and domestic vehicles. It consists of three multiple disc clutch packs, three bands, two one-way clutch assemblies and three planetary gear sets.In addition it is equipped with a torque converter clutch using a single disc clutch plate. The converter clutch is used to improve the overall efficiency of the transmission and is applied and released with both hydraulic and electronic controls.With the use of this manual you will be able to more readily service the Ford A4LD transmission, and provide greater customer satisfaction.

NOTES