A/T - Cooler Bypass Kit/Restricted Fluid Flow: Overview

NO: 21-03-95 Rev. A

GROUP: Transmission

DATE: Jun. 16, 1995

SUBJECT:
RWD Automatic Transmission Cold Temperature Cooler Bypass Kit

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 21-03-95 DATED APR. 14, 1995 WHICH SHOULD BE REMOVED FROM YOUR FILES. 1993 MODEL YEARS HAVE BEEN DROPPED. ALL REVISIONS ARE MARKED WITH AN **ASTERISKS**.

MODELS:

**1994-1995** (AB) Ram Van/Wagon
**1994-1995** (AN) Dakota
**1994-1995** (ZJ) Grand Cherokee
1994-1995 (BR) Ram Truck

SYMPTOM/CONDITION:

At ambient temperatures of -15 degrees F or below, vehicles equipped with auxiliary transmission coolers may experience a lack of transmission fluid flow to the transmission. At these low temperatures, the automatic transmission fluid might freeze in the transmission cooler lines restricting fluid flow. This can cause damage to the transmission, and in periods of extended driving, transmission failure may result.

DIAGNOSIS:

The cold weather by-pass kit should be installed if any of the following conditions are met:

1. If the vehicle is used in areas of extended cold ambient temperatures (below -15 degrees F).

2. If the transmission has failed in cold ambient temperatures, install the bypass kit when repairing or replacing the transmission. Follow proper cooler flushing and transmission replacement procedures found in the Dodge Ram Service Manual.

Note
IN HOT AMBIENT TEMPERATURES, THIS KIT WILL DECREASE THE COOLING CAPACITY OF THE TRANSMISSION1S COOLING SYSTEM. AS A RESULT, UNLESS THE ABOVE STATED CONDITIONS EXIST IT IS NOT RECOMMENDED THAT THIS KIT BE INSTALLED.**

POLICY: Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:
Labor Operation No: 21-25-10-91 1.2 Hrs.
Kit, Transmission Cooler Bypass 1994-1995 (BR)
Install 1994-1995 (ZJ)
1994-1995 (AN)
1994-1995 (AB)

FAILURE CODE: P8 - New Part