# Service bulletin 990602012B

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.

- Type: Service bulletin
- NHTSA id: 611277
- Published by NHTSA: 2000\-05\-31
- Manufacturer's number: 990602012B
- Manufacturer's date: 2000\-02\-01
- Replaces: 990602012A
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

SOME CUSTOMERS MAY COMMENT THAT THE HEATER IS INOPERATIVE, BLOWS COLD AIR, ENGINE MAY EXHIBIT AN OVERHEAT CONDITION OR THE COOLANT RESERVOIR HAS RUST IN IT. \*TT

## 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

- 1996 to 1998 CHEVROLET BLAZER
- 1996 to 1998 CHEVROLET S10
- 1996 CHEVROLET SONOMA
- 1998 GMC ENVOY
- 1996 to 1998 GMC JIMMY
- 1996 to 1998 GMC SONOMA
- 1996 to 1998 OLDSMOBILE BRAVADA

## Recalls for the same vehicles and component

- [1997201](/recalls/tc/1997201.md), 1997-11-18: Engine

## Other bulletins for the same vehicles and component

- [130089009](/bulletins/10246631.md), 2023-12-11, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Expanded Availability for Remanufacture and Return \(R\&R\) Electronic Control Modules
- [PI0969](/bulletins/10139019.md), 2018-06-04, Service bulletin: ENGINE AND ENGINE COOLING; EQUIPMENT. This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement Concern.
- [040603002](/bulletins/10012703.md), 2005-03-11, Service bulletin: ENGINE AND ENGINE COOLING. DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY. \*EH
- [040605001](/bulletins/10011129.md), 2005-01-03, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON \(SES\) LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0420 SET. \*TT
- [3081](/bulletins/10010375.md), 2004-11-17, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT AND P0300 WHEN TOWING, CRUISING UPHILL OR ON HARD ACCELERATION. \*TT
- [02068](/bulletins/10007765.md), 2004-07-10, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. NO START WITH DIAGNOSTIC TROUBLE CODE \(DTC\) P1626 OR P1631. ALSO INCLUDES 1998\-2004 CHEVROLET, GMC FULL SIZE TRUCKS/ UTILITIES/ VANS. \*TT
- [01225](/bulletins/10007717.md), 2004-07-08, Service bulletin: ENGINE AND ENGINE COOLING. ENGINE COOLANT LEAK AT INTAKE GASKET. \* MJ
- [01727](/bulletins/10006363.md), 2004-04-30, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. 4.3 L35 LU3 RATTLE OR BUZZ NOISE FROM ENGINE. SIT BULLETIN 1457619. \*TT
- [030601024](/bulletins/10004371.md), 2003-12-04, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. \*TT
- [030601024A](/bulletins/10004301.md), 2003-12-02, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. RATTLE NOISE IN ENGINE. \*TT

JSON: [/v1/bulletins/611277](/v1/bulletins/611277)

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