# Service bulletin CAMP/95C18

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: 39271
- Published by NHTSA: 1995\-11\-01
- Manufacturer's number: CAMP/95C18
- Manufacturer's date: 1995\-02\-01
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS

## NHTSA's summary

GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1990\-1995 C5H, C6H AND C7H TRUCKS EQUIPPED WITH 6.0L ENGINES \(RPO LSO\-VIN CODE "P"\) AND AUTOMATIC TRANSMISSIONS MAY EXPERIENCE PREMATURE PISTON FAILURES DUE TO PRE\-IGNITION SPARK PLUG FIRING. TO CORRECT THIS CONDITION A NEW DISTRIBUTOR CAP, NEW SPARK PLUG WIRES AND NEW SPARK PLUG WIRE SHIELDS SHOULD BE REPLACED. ON AFFECTED 1995 VEHICLES, ONLY A NEW DISTRIBUTOR ROTOR IS REQUIRED. \*TW

## 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

Brakes, Engine

## Vehicles listed

- 1990 to 1995 CHEVROLET C SERIES\(MEDIUM\)
- 1990 to 1991 GMC C SERIES\(MEDIUM\)
- 1993 to 1995 GMC C SERIES\(MEDIUM\)

JSON: [/v1/bulletins/39271](/v1/bulletins/39271)

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