# Service bulletin 99066B

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: 613602
- Published by NHTSA: 2000\-07\-25
- Manufacturer's number: 99066B
- Manufacturer's date: 2000\-05\-01
- Replaces: 99066A
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

## NHTSA's summary

SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START. \*\*MR

## 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 CADILLAC K SERIES
- 1996 to 1999 CHEVROLET C SERIES
- 1996 CHEVROLET G SERIES
- 1997 to 1999 CHEVROLET G SERIES
- 1996 to 1999 CHEVROLET K SERIES
- 1996 to 1999 CHEVROLET L SERIES
- 1996 to 1999 CHEVROLET M SERIES
- 1996 to 1999 CHEVROLET P SERIES
- 1996 to 1999 CHEVROLET S SERIES
- 1996 CHEVROLET T SERIES
- 1997 to 1999 CHEVROLET T SERIES
- 1996 to 1999 CHEVROLET W4
- 1996 FORD L SERIES
- 1999 FORD L SERIES
- 1996 to 1999 GMC C SERIES
- 1996 to 1999 GMC G SERIES
- 1996 to 1999 GMC K SERIES
- 1997 to 1998 GMC L SERIES
- 1996 to 1999 GMC M SERIES
- 1996 to 1999 GMC P SERIES
- 1996 to 1999 GMC S SERIES
- 1996 GMC T SERIES
- 1997 to 1999 GMC T SERIES
- 1996 to 1999 GMC W4
- 1996 to 1998 OLDSMOBILE T SERIES

## 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
- [000604003B](/bulletins/10001298.md), 2003-04-28, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. ROUGH IDLE AFTER START, AND/OR A SERVICE ENGINE SOON \(SES\) LIGHT. VARIOUS MODELS INCLUDING THE 1995 CHEVROLET AND GMC S/T MODELS. \*TT
- [030604014](/bulletins/10001114.md), 2003-04-15, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:DIESEL. OIL PRESENT AROUND TURBO AREA, OIL LEVEL LOW, OIL PRESSURE GAUGE MAY DROP. \*TT
- [020604060](/bulletins/10000739.md), 2003-03-28, Service bulletin: ENGINE AND ENGINE COOLING. AUTOMATIC ENGINE SHUTDOWN FEATURE. \*TT
- [020601024](/bulletins/634798.md), 2002-10-09, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. ON CERTAIN VEHICLES, SUCH AS THE CHEVROLET AND GMC WT 5500 MEDIUM DUTY TILT CAB MODELS, THE ENGINES MAY EXPERIENCE ROCKER ARM DAMAGE OR ROCKER BRIDGE DAMAGE FOLLOWING OVERHAUL OF THE CYLINDER HEAD IF THE VALVE BRIDGE STUD INSTALLED DEPTH IS INCORRECT. \*TT
- [020603002](/bulletins/631668.md), 2002-06-10, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. \*JG
- [020603002](/bulletins/631256.md), 2002-05-21, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:DIESEL. CUSTOMERS MAY COMPLAIN THAT THE ENGINE WILL NOT START. \*SLC
- [020604006](/bulletins/629484.md), 2002-04-02, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME CUSTOMERS MAY COMMENT ON SERVICE ENGINE SOON LAMP ON, MALFUNCTION INDICATOR LAMP ILLUMINATIONS INTERMITTENTLY, DIAGNOSTIC TROUBLE CODE SET, BLOWN FUSES, AND ENGINE WILL NOT START. \*TT
- [000601023A](/bulletins/628938.md), 2002-03-25, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. INFORMATION USED WHEN DIAGNOSING NOISE CONDITIONS SUCH AS ENGINE RATTLE NOISE, SPARK KNOCK AT 2000 \- 2500 RPM RANGE, UNDER A MODERATE TO HEAVY LOAD WITH A WARMED UP ENGINE. \*TT
- [99066D](/bulletins/628925.md), 2002-03-25, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE ORHARD START DUE TO A DEPOSIT BUILD\-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INUJECTOR \(SCPI\) POPPET VALVE\(S\). \*TT

JSON: [/v1/bulletins/613602](/v1/bulletins/613602)

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