Fleetwood FWD V8-273 4.5L (1988)
Tank Pressure Control Valve (TPCV): All Technical Service Bulletins
Fuel Tank - Pop Noise During Start Up
Bulletin No.: T-93-35
File in Group: 6
Number: 30
Corp.Ref.No.: 216303R
Date: Dec. 1992
SUBJECT:
FUEL TANK NOISE DUE TO TANK PRESSURE CONTROL VALVE (TPCV)
MODELS AFFECTED:
1988-1993 DEVILLES AND FLEETWOODS
This bulletin supersedes T-92-112 which should be discarded. This bulletin is being revised to specify a different Tank Pressure Control Valve (TPCV)
and part number and to add a model year.
Some 1988-1993 DeVilles and Fleetwoods may experience a condition of fuel tank pop noise during start up. This condition may occur due to vacuum
accumulation in the fuel tank--typically in a morning start up. The release of the built up fuel vapor vacuum in the fuel tank at start up could cause a loud
popping noise by the fuel tank.
A revised Tank Pressure Control Valve (TPCV), which has a fuel tank vacuum relief valve, can be installed to correct this condition.
To repair this condition use the following procedure:
1.
Remove current TPCV
2.
Install revised TPCV, P/N 17089068.
Parts are currently available from GMSPO.
WARRANTY INFORMATION
