PROM - Multiple Driveability Concerns

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NUMBER: 89-T-137

CORP.REF.NO: 936516R

OATE: October 1989

SECTION: 6E


SUBJECT:
MULTIPLE DRIVEABILITY CONCERNS FOR 2.5L ENGINE (INSTALLATION OF NEW PROM)


MODELS/YEARS:
1987-89 CUTLASS CALAIS AND CUTLASS CIERA


This bulletin cancels and supersedes Dealer Technical Bulletin 88-T-54.

This bulletin contains new and revised calibrations to address additional driveability conditions.

Some 1987-89 Cutlass Calais and Cutlass Ciera models may exhibit one or more of the following driveability conditions:

1. Hard Hot Engine Restart
2. Intermittent Higher Than "Normal" Idle
3. Spark Knock (Detonation)
4. Code 42

If these conditions cannot be addressed through normal service procedures, they may be repaired by installing the appropriate hardware as outlined below.

SERVICE PROCEDURE:

1. Use a scanner to determine the PROM I.D. that is currently In the vehicle.








2. Look for that PROM I.D. in Table 1 or Table 2 as indicated, and select the corresponding required parts:

3. If the major condition is Hard Hot Engine Restart, use Table 1.

WARRANTY INFORMATION:

To repair Hard Hot Engine Restart with or without any of the above driveability conditions:

Labor Operation Number: T1314
Labor Time for the following car lines: Cutlass Ciera Cutlass Calais
1.6 Hr. 1.7 Hr.
Trouble Code: 92

4. If the major condition is Intermittent High Idle (similar to cold fast idle) manual transaxle, Spark Knock, and/or Code 42, use Table 2.

WARRANTY INFORMATION:

To repair Intermittent Higher Than "Normal" Idle, Spark Knock, and/or Code 42:

Labor Operation Number: J6364

5. Install the new parts and verify that the driveability conditions have been corrected.