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Service bulletin PIP-4492P

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 id10036464
Published by NHTSA2011-03-16
Manufacturer's numberPIP-4492P
Manufacturer's date2011-05-01
ReplacesPIP-4492W
NHTSA componentENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

NHTSA's summary

BUICK/CADILLAC/CHEVROLET/GMC/HUMMER/PONTIAC/SAAB: OIL CONSUMPTION AND/OR EXHAUST SMOKE-POSSIBLE PCV BAFFLE OR LIFTER CONCERN. UPON INSPECTION, OBVIOUS OIL WILL BE FOUND IN THE INTAKE MANIFOLD AND/OR PCV VACUUM TUBE. *PE UPDATED 3/21/11. *PE UPDATED 5/9/11. *PE UPDATED 5/25/11. *PE UPDATED 06/16/2011. *KB UPDATED A SECOND TIME ON 06/16/2011. *KB UPDATED 6/27/11. *PE

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, Exhaust and emissions, Crankcase ventilation (PCV)

Vehicles listed
BUICK ALLURE2009
BUICK LACROSSE2009
BUICK RAINIER2004, 2005, 2006, 2007
CADILLAC CTS2004, 2005, 2006, 2007, 2008
CADILLAC ESCALADE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET AVALANCHE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET AVALANCHE 15002011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COLORADO2009, 2010, 2011
CHEVROLET CORVETTE2003, 2004, 2005, 2006, 2007
CHEVROLET EXPRESS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET IMPALA2006, 2007, 2008, 2009
CHEVROLET MONTE CARLO2003, 2004, 2005, 2006, 2007
CHEVROLET SILVERADO2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET SSR2003, 2004, 2005, 2006
CHEVROLET SUBURBAN2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET SUBURBAN 15002010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET TRAILBLAZER2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC CANYON2009, 2010, 2011
GMC ENVOY2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC SANANA2010
GMC SAVANA2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
GMC SIERRA2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
GMC YUKON2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
HUMMER H22003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
HUMMER H32008, 2009, 2010
PONTIAC G82008, 2009
PONTIAC GRAND PRIX2005, 2006, 2007, 2008
SAAB 9-7X2005, 2006, 2007, 2008, 2009

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
PIP3423P2018-09-17. Service bulletin. This Preliminary Information communication provides information to the technician that Diagnostic Trouble Codes P0016, P0017, P0018, P0019, P0008 or P0009 may be set. Technician will need to inspect for loose timing chains or tensioners. If after following Service Information diagnostics the root cause is not found inspect the reluctor for the crankshaft sensor. If the reluctor has moved then replace crankshaft.
PIP4581B2018-06-04. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may have an engine rattle that star after the engine was repaired ant the repair required the crankshaft balancer removal and replacement. When the rattle noise is duplicated without the Service Engine Soon Malfunction Indicator Lamp and Service Information diagnosis does not isolate the cause the crankshaft balancer bolt should be re-torqued per the specifications states in Service Information. When the rattle noise is duplicated with the Service Engine Soon Malfunction Indicator Lamp and Diagnostic Trouble Code P0016 or P0017 and Service Information diagnosis does not isolate the cause the crankshaft balancer bolt should be re-torqued per the specifications states in Service Information. If tightening the bolt repairs the rattle noise but the Diagnostic Trouble Code P0016 or P0017 continue to set technician should follow published Service Information diagnostics for the Diagnostic Trouble Code. If Service Information diagnostics for the Diagnostic Trouble Code do not lead to a repair for the Diagnostic Trouble Code remove the crankshaft timing sprocket and inspect the crankshaft alignment pin and the related groove of the sprocket for obvious wear. If wear is present replace the sprocket and pin and retest.
PIP-4750-D2012-04-11. Service bulletin. CHEVROLET/PONTIAC: WHILE ENGINE IS RUNNING, THE BELT SQUEAKS AND CRANKSHAFT BALANCER APPEARS WOBBLY OR OUT OF BALANCE. *PE
PIP33432008-04-07. Service bulletin. POSSIBLE ENGINE OIL LEAK DUE TO PCV FREEZE-UP, EQUIPPED WITH THE 4.8, 5.3, 6.0, AND 6.2 V-8 ENGINES. *NJ