# Service bulletin 00601001

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: 611288
- Published by NHTSA: 2000\-06\-01
- Manufacturer's number: 00601001
- Manufacturer's date: 2000\-02\-01
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

## NHTSA's summary

SOME CUSTOMERS MAY COMMENT ON A WHIRLING SOUND FROM THE LOWER REAR SIDE OF THE ENGINE, OCCURING AS THE ENGINE WARMS UP, BETWEEN 1500 AND 2000 ENGINE RPM ON VEHICLES WITHIN VARIOUS VIN BREAKPOINTS. \*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 SILVERADO
- 1999 GMC SIERRA

## 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.
- [PIP4404F](/bulletins/10114876.md), 2017-08-15, Service bulletin: ENGINE. This Preliminary Information communication provides information to the technician vehicles with a slight rough idle. Technician should compare the concern with a like vehicle. If the concern is worse than a like vehicle, technician should follow published Service Information diagnosis and repair as necessary.
- [PIP4138N](/bulletins/10113177.md), 2017-08-15, Service bulletin: ENGINE; ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300\-P0308. If published Service Information diagnostics does not isolate the cause of this concern technician should check for a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, and a collapsed active fuel management lifter.
- [PIP4138M](/bulletins/10112702.md), 2017-08-15, Service bulletin: ENGINE. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300\-P0308. If published Service Information diagnostics does not isolate the cause of this concern technician should check for a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, and a collapsed active fuel management lifter.
- [PIP5169](/bulletins/10111977.md), 2017-08-15, Service bulletin: ENGINE. This Preliminary Information communication provides information to the technician about vehicles that are setting Diagnostic Trouble Code P0300 after engine repairs. Technician will need to ensure that injector connectors for cylinder 5\-7 and 6\-8 are not crossed.
- [PIP4138P](/bulletins/10111737.md), 2017-08-15, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300\-P0308. If published Service Information diagnostics does not isolate the cause of this concern technician should check for a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, and a collapsed active fuel management lifter.
- [PIP\-4138K](/bulletins/10037933.md), 2011-06-08, Service bulletin: ENGINE AND ENGINE COOLING. GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE. THERE ARE MULTIPLE POSSIBLE CAUSES. \*RM
- [4231](/bulletins/10021021.md), 2007-02-22, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. SERVICE VME. SUPPLEMENT TO 00\-02\-35\-003L. UPDATE ON NEW I\-SHAFT. \*KB
- [3691B](/bulletins/10019426.md), 2006-03-15, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. GENERATION III V8 ENGINE PISTON REPAIRS. \*TT

JSON: [/v1/bulletins/611288](/v1/bulletins/611288)

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