A/T - Rattling or Clicking Noise at Start Up
90chevy13Number: 90-195-6A
Section: 6A
Date: March 1990
Corp. Bulletin No.: 037101
Subject: ENGINE NOISE - RATTLING/CLICKING AT START-UP
1985-89 J CAR AND 1988-89 L CAR WITH 2.8L (VIN CODE W)
Model and Year: ENGINE AND AUTOMATIC TRANSMISSION 1990 J, L, W CAR WITH 3.1 (VIN COD T) ENGINE AND AUTOMATIC TRANSMISSION
Figure No. 1:
Owners of 1985 through early 1990 J-cars and 1988 through early 1990 L-cars equipped with 2.8L or 3.1L V6 engines with automatic transmission may notice a rattling or clicking noise coming from the engine compartment. This noise is more apparent when the engine is cold and usually goes away as the engine warms up.
The above noise may be due to the torque converter shield. This warped shield may interfere with the flywheel.
A torque converter shield currently used on the W-car has been released for use on the 2.8L and 3.1L J and L car. See Figure on next page.
Parts:
Shield, Converter (previous) P/N 10085217
Shield, Converter (New) P/N 10009088
Replace cover, use three of the existing bolts removed from the vehicle.
Parts are currently available from GMSPO.
Labor Operation Number: J1440
Labor Time: .3 Hours