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Pontiac Repair/P0171 Code - Pontiac Torrent


Following is a diagnosis from a dealer service department in response to a service engine light coming on in my 2006 Pontiac Torrent 3.4 L V6..."Ses light on. P0171 00 set for lean condition. Found pcv breather hose at rear valve cover does not seal properly. Recommend replacing hose and grommet before further diagnosis."  The part was not readily available at the time and now I was going to attempt the repair myself if I could find the hose.  Unfortunately, I can't find a part number or engine diagram showing where the hose is connected on the rear valve cover.  Would you know where I can find the part number and diagram?  Is this a simple replacement procedure or something more complicated involving the removal of various engine components?



Hi John.
That is a common issu with those engines. I'm not a parts guy so I can't help you with the part # but you need the grommet that air hose fits into the rear valve cover you do not need the hose. stop by ANY GM dealership and they can look it up for you. Best bet is a Chevy dealer the Equinox and the torrent were the same suv. very easy fix pull the old grommet out and push in the new one and attach the hose. it's sure it fit loose at the engine and not at the snorkel.

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Todd Puccio


General auto repair,electrical issues,driveability issues,anti-lock brakes,SIR systems,HVAC,engine performance,Gm specific. I have worked at my current dealership since the 1990 model year anything much older than that I have limited exposure to. I do not have very much transmission experience so those question you may want to ask of another expert. When you send me a question let me know the exact make/model/engine and year for the car or suv you have it makes it easier to answer the questions that way. If your happy with the answer I gave you please feel free to Donate. This is a free service to you and I am not compensated at all by this web site. I have 22 years of experience to share with you and my knowledge wasn't free to me. I had to pay for my education.


Experience in the area: I have been a technician in GM dealerships for over 22 years and I am a ASE master technician. I work at a Buick and GMC truck store Previously I worked at a Pontiac GMC store for 18 years. I Served a a lead technician when dealership was on a team system. I just recently moved to a Buick,Hummer,Saab Store when my franchise was purchased by this dealership. Organizations: ASE master technician


Education/Credentials:High school diploma,2 year vocational school degree 2 year college degree. Associates degree in applied sciences (auto technology)Awards and Honors: GMC master technician

Awards and Honors
Master GMC truck technician Master ASE technician in 9 categories

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