WenmarOpen by Wenmar Pro

Service bulletin 00969A

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 id10005469
Published by NHTSA2004-02-28
Manufacturer's number00969A
Manufacturer's date2004-01-01
Replaces00969B
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

ENGINE WHISTLE NOISE. *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
BUICK RAINIER2004
CADILLAC ESCALADE2001, 2002, 2003
CHEVROLET AVALANCHE2002, 2003
CHEVROLET EXPRESS2003
CHEVROLET SILVERADO1999, 2000, 2001, 2002, 2003
CHEVROLET SUBURBAN2000, 2001, 2002, 2003
CHEVROLET TAHOE2000, 2001, 2002, 2003
CHEVROLET TRAILBLAZER2003
GMC ENVOY2003, 2004
GMC SAVANA2003
GMC SIERRA1999, 2000, 2001, 2002, 2003
GMC YUKON2000, 2001, 2002, 2003
HUMMER H22003

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

Recalls for the same vehicles and component
20073632007-11-09. Engine
07V5210002007-11-07. ENGINE AND ENGINE COOLING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
03-06-01-023I2025-01-17. Service bulletin. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
03-06-01-023H2024-11-14. Service bulletin. This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
16-NA-3832024-07-16. Service bulletin. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
16-NA-3832024-03-19. Service bulletin. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
06-06-01-019C2024-03-19. Service bulletin. This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
22-NA-0742024-02-29. Service bulletin. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
PI1394B2024-02-02. Service bulletin. This PI bulletin advises the technician on the proper way to install the pistons in an engine.
1300890092023-12-11. Service bulletin. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
03-00-91-001I2023-11-22. Service bulletin. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
23-NA-1532023-09-26. Service bulletin. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.