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Old 03-12-2013, 10:14 PM
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ramfam ramfam is offline
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Join Date: Aug 2011
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Vehicle: 2001 1500/1982 D150
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Well one thing I've seen happen with gm is air temp sensor goes bad or cracks, it will send no sig or false sig to computer about the temp of air comeing into intake and in some cases it will act like mass air inside manifold and won't always set cel ether. You do know you can check for codes without scanner on a 01 by turning key on and off 3 times and after 3rd time leave in on position code will show up odomitor screen. Be fast though they flash by quick.
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