# Service bulletin 04031

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: 10006859
- Published by NHTSA: 2004\-05\-18
- Manufacturer's number: 04031
- Manufacturer's date: 2004\-05\-01
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE

## NHTSA's summary

INSUFFICIENT GROUND TO THE OIL PRESSURE SWITCH, PREVENTING THE ENGINE OIL PRESSURE WARNING LIGHT FROM ILLUMINATING WHEN THE VEHICLE IS STARTED AND WHEN THE ENGINE OIL PRESSURE FALLS BELOW NORMAL. ALSO INCLUDES GMC AND CHEVROLET W3500/3500 SERIES ISUZU AND NPR/HD 2004. \*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

- 2003 CHEVROLET W3500
- 2003 CHEVROLET W4500
- 2003 GMC W3500
- 2003 GMC W4500
- 2003 ISUZU NPR

JSON: [/v1/bulletins/10006859](/v1/bulletins/10006859)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2004031&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10006859&vehicle=Service%20bulletin%2004031)