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Service bulletin PIT3116B

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 id10176314
Published by NHTSA2020-06-15
Manufacturer's numberPIT3116B
Manufacturer's date2020-05-13
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

This Preliminary information communicates information to Clean the throttle body if the engine stalls at idle when the A/C comes on.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Cooling system

Vehicles listed
BUICK RAINIER2004, 2005, 2006, 2007
CHEVROLET TRAILBLAZER2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET TRAILBLAZER EXT2002, 2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAILBLAZER EXT2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAILBLAZER EXT 3702005 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC ENVOY XL2002, 2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL 3702005 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
OLDSMOBILE BRAVADA2002, 2003, 2004

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
PIP4158E2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines.
38572006-02-21. Service bulletin. SUPPLEMENT TO BULLETIN 05-01-37-002A, POOR REAR HEAT PERFORMANCE . *AK
36372006-01-06. Service bulletin. EV COOLING FAN NOISE CHARACTERISTICS - DO NOT REPLACE EV FAN. *TT
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
015782004-02-25. Service bulletin. COOLING FAN OPERATION. SIT BULLETIN 1413381. *TT
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