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2006 GMC C1500 code PO449

Tiny
BOWTIEZ28
  • MEMBER
  • 2006 GMC C1500
  • V8
  • 2WD
  • AUTOMATIC
  • 55,000 MILES
Code po449 can't seem to get rid of this code. Have done and replaced ALL part's that are the proable causes. Purge valve. Emmissions canister and vent control valve can anyone HELP PLEASE! Thank's John
Wednesday, October 22nd, 2008 AT 8:16 PM

2 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Gas cap? I just got burned on one like this because I overlooked the obvious. Thats the first thing I check from now on.
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Wednesday, October 22nd, 2008 AT 8:42 PM
Tiny
DENNYP
  • MECHANIC
  • 1,823 POSTS
You can take it to the dealer and have it pressure tested for leaks. I have seen many with leaks at the fuel pump module seal.
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Tuesday, October 28th, 2008 AT 11:33 AM

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