WenmarOpen by Wenmar Pro

Service bulletin 876507A

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 id609582
Published by NHTSA2000-04-04
Manufacturer's number876507A
Manufacturer's date1998-07-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

ROUGH IDLE AFTER START, WHEN VEHICLE HAS SAT OVERNIGHT AND POPPETS STICKING.

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

Vehicles listed
CHEVROLET G SERIES1996
CHEVROLET G SERIES1997 to 1998
CHEVROLET K SERIES1996 to 1998
CHEVROLET M SERIES1994
CHEVROLET M SERIES1997 to 1998
CHEVROLET P SERIES1996 to 1998
CHEVROLET S SERIES1996 to 1998
CHEVROLET T SERIES1996
CHEVROLET T SERIES1997
FORD L SERIES1996
GMC C SERIES1996 to 1998
GMC G SERIES1996 to 1998
GMC K SERIES1996 to 1998
GMC L SERIES1997 to 1998
GMC M SERIES1996
GMC M SERIES1998
GMC P SERIES1996 to 1998
GMC S SERIES1996 to 1998
GMC T SERIES1996
GMC T SERIES1997, 1998
OLDSMOBILE BRAVADA1996, 1997, 1998

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

Other bulletins for the same vehicles and component
1300890092023-12-11. Service bulletin. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
0406030022005-03-11. Service bulletin. DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY. *EH
020682004-07-10. Service bulletin. NO START WITH DIAGNOSTIC TROUBLE CODE (DTC) P1626 OR P1631. ALSO INCLUDES 1998-2004 CHEVROLET, GMC FULL SIZE TRUCKS/ UTILITIES/ VANS. *TT
012252004-07-08. Service bulletin. ENGINE COOLANT LEAK AT INTAKE GASKET. * MJ
0306010242003-12-04. Service bulletin. RATTLE NOISE IN ENGINE. *TT
030601024A2003-12-02. Service bulletin. RATTLE NOISE IN ENGINE. *TT
000604003B2003-04-28. Service bulletin. ROUGH IDLE AFTER START, AND/OR A SERVICE ENGINE SOON (SES) LIGHT. VARIOUS MODELS INCLUDING THE 1995 CHEVROLET AND GMC S/T MODELS. *TT
0206040602003-03-28. Service bulletin. AUTOMATIC ENGINE SHUTDOWN FEATURE. *TT
0206050022002-10-07. Service bulletin. SOME CUSTOMERS MAY COMMENT ON AN EXHAUST BOOM / GROAN NOISE IN THE PASSENGER COMPARTMENT. *TT
990602012D2002-09-28. Service bulletin. SUBJECT REGARDING RUST IN COOLING SYSTEM, HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS (FLUSH COOLING SYSTEM). NLM