# Service bulletin 990604022

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: 606551
- Published by NHTSA: 1999\-08\-27
- Manufacturer's number: 990604022
- Manufacturer's date: 1999\-07\-01
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE

## NHTSA's summary

CONCERNS WITH THE COOLANT ALARM AND OIL PRESSURE ALARM ACTIVATING WHEN THE VEHICLE IS STOPPED AND THE ENGINE RETURNS TO IDLE. \*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

- 1999 CHEVROLET B7
- 1999 CHEVROLET C6500
- 1999 CHEVROLET C7500
- 1999 GMC B7
- 1999 GMC C6500
- 1999 GMC C7500

## 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
- [TSB\-013](/bulletins/10195303.md), 2021-06-07, Service bulletin: ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Engine Backfire and Related Driveability Issues
- [020604026A](/bulletins/10000456.md), 2003-02-27, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. ENGINE BACKFIRE AND RELATED DRIVEABILITY ISSUES. \*TT
- [020604026](/bulletins/634800.md), 2002-10-09, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. THIS BULLETIN IS BEING ISSUED TO ASSIST TECHNICIANS IN EFFICIENTLY DIAGNOSING AND CORRECTING BACKFIRE AND OTHER RELATED DRIVEABILITY CONCERNS. \*TT

JSON: [/v1/bulletins/606551](/v1/bulletins/606551)

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