Calais L4-151 2.5L VIN U TBI (1989)
Torque Converter Clutch: Customer Interest
Engine - Shudder or Chuggle at Slow Speeds
NUMBER:
90-T-196
CORP.REF.NO:
036518R
036515R
DATE: January 1991
SECTION: 6E
SUBJECT
ENGINE CHUGGLE AT LOW SPEEDS NEW PROM PACKAGE TO RAISE TCC LOCKUP SPEED
MODELS/YEARS
1989-90 CUTLASS CALAIS
CONDITION:
Some owners of 1990 Cutlass Calais models with 2.5L engines may comment about an engine shudder or chuggle condition when driving at slow speeds
in high gear.
CAUSE:
Converter clutch lockup at slow speeds during some driving conditions.
CORRECTION:
A new PROM package has been released which raises the TCC lockup speed from 29 to 43 mph.
Usage
PROM Pkg. P/N
Broadcast Code
Scanner I. D.
1989
16157765
AWDT
7781
1990
16159793
AXCM
9801
Parts are currently available from GMSPO.
WARRANTY INFORMATION:
Labor Operation Number:
T0500
Labor Time:
0.4 hours.
Trouble Code:
92
