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Board index » OBD Troubleshooting Help » OBD-II P1XXX Powertrain Codes All times are UTC - 7 hours [ DST ]

avalanche 2004 P0300-301-303-305-307

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sylvain hervieux	Post subject: avalanche 2004 P0300-301-303-305-307 Posted: Tue Mar 03, 2009 4:52 pm
Joined: Wed Feb 25, 2009 5:50 pm Posts: 3	I got all those codes on my truck whit a 5.4 liters. Someone says to me it's the intake manifold . It is possible
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Sponsored Links	Post subject: avalanche 2004 P0300-301-303-305-307  Posted: Today
Joined: 29 Jun 2004 08:12 pm Posts: N/A
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asecmt	Post subject: Re: avalanche 2004 P0300-301-303-305-307 Posted: Tue Mar 03, 2009 7:54 pm
Joined: Tue Jun 17, 2008 7:06 pm Posts: 714 Location: Atlanta GA	How does it run? I would be leaning more towards a clogged converter more than intake gaskets. With all the misfires on one bank sounds like a restricted converter.
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asecmt	Post subject: Re: avalanche 2004 P0300-301-303-305-307 Posted: Wed Mar 04, 2009 6:48 pm
Joined: Tue Jun 17, 2008 7:06 pm Posts: 714 Location: Atlanta GA	I would take it to a exhaust shop and have them check the back pressure on the converter for bank 1 and see where it is. Only if you cannot do this yourself.
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blown	Post subject: Re: avalanche 2004 P0300-301-303-305-307 Posted: Thu Mar 05, 2009 7:52 am
Joined: Sun Mar 01, 2009 3:22 pm Posts: 4 Location: under your hood	How does it idle. Water in the fuel will give po300's on all injectors (Multiple Random Miss Doubtfires) 0 ...LOL...and run fine. Just went through something with the same symptons . Not to say that this is your problem. Happened to me , and this curred it -- viewtopic.php?f=1&t=4583&p=20691#p20691
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jeff compton	Post subject: Re: avalanche 2004 P0300-301-303-305-307 Posted: Tue Mar 10, 2009 4:39 pm
Joined: Tue Jan 10, 2006 2:09 pm Posts: 5465 Location: Orleans Ontario Canada	I'd bet the converter as well!
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Board index » OBD Troubleshooting Help » OBD-II P1XXX Powertrain Codes All times are UTC - 7 hours [ DST ]

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