Fuel Tank - Thud/Clunk Noise Between 3/4 and Full
File In Section: 6E - Engine Fuel & EmissionBulletin No.: 43-63-03
Date: January, 1995
Subject:
Fuel Tank Thud/Clunk (Replace Tank and Fuel Tank Sender Assembly)
Models:
1990-95 Chevrolet Minivan
1990-95 Oldsmobile Silhouette
1990-95 Pontiac Trans Sport
Condition
Some vehicles may exhibit a thud/clunk type noise apparent during acceleration or braking maneuvers when the fuel tank is filled between 3/4 and full.
Cause
Fuel mass, as it shifts within the fuel tank, is colliding with the large radii at the ends of the fuel tank.
Correction
Replace existing fuel tank and fuel sender assemblies with new components indicated below following applicable Service Manual procedures, Section 6C.
Parts Information
Parts are currently available from GMSPO.
Warranty Information