WenmarOpen by Wenmar Pro

Service bulletin 300801

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id625366
Published by NHTSA2001-11-20
Manufacturer's number300801
Manufacturer's date2001-08-30
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

NHTSA's summary

INFORMATION REGARDING FAN NOISE. *YH

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

Vehicles listed
CHEVROLET ENVOY2002
CHEVROLET TRAILBLAZER2002
GMC ENVOY2002
OLDSMOBILE BRAVADA2002

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
PIT3116B2020-06-15. Service bulletin. This Preliminary information communicates information to Clean the throttle body if the engine stalls at idle when the A/C comes on.
30772004-10-15. Service bulletin. TICK NOISE AT IDLE. *TT
016762004-06-03. Service bulletin. 4.2 4L60E ENGINE COOLING FAN CONTACTS SHROUD AFTER REPLACING RADIATOR. *MR
0810B2004-02-24. Service bulletin. TICK NOISE AT IDLE. *TT
0121032004-01-30. Service bulletin. ENGINE OVERHEAT CONDITION WITH LITTLE OR NO HEATER OUTPUT. OASIS *TT
0415022002-11-09. Service bulletin. INFORMATION PERTAINING TO THE UNDERHOOD UPPER RADIATOR SUPPORT BAFFLE OR BEAUTY COVER. *TT
3110012002-03-05. Service bulletin. BRIEF INFORMATION REGARDING THE AVAILABILITY OF AN ENHANCED CALIBRATION FOR ENGINE COOLING FAN NOISE AND P1484 DIAGNOSTIC TROUBLE CODE. *TT