PB 150 V8-318 5.2L VIN T 2-BBL (1983)
Transmission Cooler: Technical Service Bulletins
A/T Cooler - Flushing Procedure
Models
All Domestic Vehicles with Automatic Transmission Coolers
Subject
Transmission Cooler Flushing Procedure
Index
TRANSMISSION
Date
June 5, 1989
No.
21-10-89 REVISION A
P-2170 (C21-12-9)
BODY CODE LEGEND
ALL DOMESTIC CHRYSLER/PLYMOUTH & DODGE VEHICLES
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN # 21-10-89, DATE 04/24/89, WHICH SHOULD BE REMOVED FROM
YOUR FILE. THIS REVISION CORRECTS AN ERROR IN THE A-6Q4 ILLUSTRATION.
SYMPTOM/CONDITION
Repeated automatic transmission failures.
REPAIR PROCEDURE
The purpose of this bulletin is to emphasize the importance of properly flushing the transmission oil cooler following any repair which requires the
removal or replacement of any automatic transmission or transaxle. Clogged or restricted transmission oil coolers can be a cause of recurring
transmission failures. Restriction of cooler flow can cause overheating of the transmission fluid and reduce important lubrication to internal rotating
parts.
Although several styles of transmission coolers are in use, including various oil-to-air designs and those internal to the radiator tank, all have small
internal passages which can trap debris, such as loose lock-up clutch friction material and become clogged. It is absolutely necessary, in any case of
transmission failure, to thoroughly flush the cooler, following the procedure outlined below and then check the flow to ensure that all possible debris has
been removed.
When reverse flushing an automatic transmission cooler the following procedure should be used:
