# Service bulletin 311001

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: 628066
- Published by NHTSA: 2002\-03\-05
- Manufacturer's number: 311001
- Manufacturer's date: 2001\-10\-31
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

## NHTSA's summary

BRIEF INFORMATION REGARDING THE AVAILABILITY OF AN ENHANCED CALIBRATION FOR ENGINE COOLING FAN NOISE AND P1484 DIAGNOSTIC TROUBLE CODE. \*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, Cooling fan, Cooling system

## Trouble codes named

P1484

## Vehicles listed

- 2002 CHEVROLET TRAILBLAZER
- 2002 GMC ENVOY
- 2002 OLDSMOBILE BRAVADA

## Other bulletins for the same vehicles and component

- [PIT3116B](/bulletins/10176314.md), 2020-06-15, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. This Preliminary information communicates information to Clean the throttle body if the engine stalls at idle when the A/C comes on.
- [3077](/bulletins/10009677.md), 2004-10-15, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TICK NOISE AT IDLE. \*TT
- [01676](/bulletins/10007188.md), 2004-06-03, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. 4.2 4L60E ENGINE COOLING FAN CONTACTS SHROUD AFTER REPLACING RADIATOR. \*MR
- [0810B](/bulletins/10005383.md), 2004-02-24, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TICK NOISE AT IDLE. \*TT
- [012103](/bulletins/10005095.md), 2004-01-30, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. ENGINE OVERHEAT CONDITION WITH LITTLE OR NO HEATER OUTPUT. OASIS \*TT
- [041502](/bulletins/636540.md), 2002-11-09, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. INFORMATION PERTAINING TO THE UNDERHOOD UPPER RADIATOR SUPPORT BAFFLE OR BEAUTY COVER. \*TT
- [300801](/bulletins/625366.md), 2001-11-20, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. INFORMATION REGARDING FAN NOISE. \*YH

JSON: [/v1/bulletins/628066](/v1/bulletins/628066)

[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%20311001&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F628066&vehicle=Service%20bulletin%20311001)