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Service bulletin 376602A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id39070
Published by NHTSA1995-03-06
Manufacturer's number376602A
Manufacturer's date1995-01-01
Replaces37-66-02
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

NEW CAST IRON EXHAUST MANIFOLD AND STAINLESS STEEL GASKET TO CORRECT ENGINE NOISE CONDITION. *TW

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Exhaust and emissions, Exhaust manifold, pipes and muffler

Vehicles listed
CHEVROLET C SERIES (LIGHT)1982 to 1995
CHEVROLET G SERIES1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
CHEVROLET P SERIES1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994
CHEVROLET P SERIES1995
CHEVROLET SUBURBAN1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
GMC C SERIES(LIGHT)1982 to 1995
GMC G SERIES1982 to 1995
GMC P SERIES1982 to 1995
GMC SUBURBAN1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
GMC SUBURBAN1995

Listing a model year does not mean every vehicle of it is concerned: the document says which.