PROM - Cold Start Stall/Driveability for 15-60 Seconds
89pontiac04Bulletin Number: 89-6-27
Reference Number: 976501
Publish Date: 2/89
Subject: COLD START STALL, TIP-IN HESITATION, ROUGH RUNNING OR MISS FOR 15 TO 60 SEC. (NEW MEM CAL)
Models
Affected: 1988 - 1989 GRAND AM MODELS WITH 2.3L VIN D
Some 1988 and 1989 Grand Am models with 2.3L (VIN D) engine may exhibit one or more of the following conditions for the first 15 to 60 seconds after a cold start.
- Stall when put in gear
- Tip-in hesitation after immediately put in gear
- Reduced cold driveability (miss, rough running or backfire)
If any of the above conditions cannot be repaired, following proper service manual diagnosis, it may be necessary to install a new MEM-CAL.
New Mem-Cal
Model Transaxle Scan I.D. Emissions Mem-Cal
1988 Auto 6623 Federal 16136595
1988 Manual 6643 Federal 16136597
1988 Auto 6633 California 16136596
1988 Manual 6653 California 16136598
1989 models beginning with the VIN breakpoints shown below have the updated Mem-Cal. Models prior the breakpoints may require the Mem-Cal shown:
Pontiac
VIN KC685595 Auto 6033 Federal 16136029
Pontiac
VIN KC686845 Manual 4003 Federal 16134216
Pontiac
VIN KC686592 Auto 6043 California 16136030
Pontiac Manual 4013 California 16134220
VIN KC691725
Parts are expected to be available on March 6, 1989. Until then normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the part will be shipped premium transportation at dealer's expense. All other order types will be canceled as incorrectly ordered while the 400 control is in place.
Warranty Information:
Labor Operation Number: T0500
Labor Time : .4 hrs.
Trouble Code : 92