5.3l Running very bad need help.
02-20-2008, 05:06 PM
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5.3l Running very bad need help.
I have a 2005 gmc with the 5.3l after work today the engine light on the truck came on the light blinks on and off then stays on the truk wont idle the rpm gose from 100- 700 rpm in nutral and the engine spudders when you take off or rev it up Eny Ideas? also I have a cold air intake system on the truck and the filter had got full of snow many time this winter is it possible water got in the intake and messed up some sensors? I have full warranty im thinking of takeing the filter system off before going to the dealer.
02-20-2008, 10:10 PM
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it's very possible that they would void the warrenty but all dealers are differant. honestly it's not worth not taking it off and having them void it because if they do void the warrenty it would more than likely be a nationwide thing meaning if you remove it after it was voided and try goin to a differant dealer you would still be out of luck cause the comp says NONO basically.
so remove it be safe and get it fixxed up.
so remove it be safe and get it fixxed up.
02-20-2008, 10:39 PM
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it's very possible that they would void the warrenty but all dealers are differant. honestly it's not worth not taking it off and having them void it because if they do void the warrenty it would more than likely be a nationwide thing meaning if you remove it after it was voided and try goin to a differant dealer you would still be out of luck cause the comp says NONO basically.
so remove it be safe and get it fixxed up.
so remove it be safe and get it fixxed up.
02-21-2008, 07:37 AM
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It sounds like the cold air filter has spit some oil or debris back onto the Mass Air Sensor to be....I see this alot at my shop. Especially if you over oil the filter. If it's not the MAF Sensor, you may have to have them take a look at the TAC Module for your throttle body. It replaces the Throttle position sensor that the older ones had. Being a GM Dealer and Service center, I can say with pretty good faith, that if you leave the cold air kit on the truck and it turns out to be the cause of the problem, then they'll make you pay for it instead of warranty.
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02-22-2008, 05:51 PM
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Well Iput the stock intake back on the truck took it to the dealer I had no problems with warrenty issues the truck runs great now. Turns out a o2 sensor had low voltage. Bank 1 fuel trim was lean and also a misfire on bank 1. Sensor 1 oxygen sensor was replaced. Thanks for the tips glad all is good with engine now.
02-22-2008, 05:57 PM
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Well Iput the stock intake back on the truck took it to the dealer I had no problems with warrenty issues the truck runs great now. Turns out a o2 sensor had low voltage. Bank 1 fuel trim was lean and also a misfire on bank 1. Sensor 1 oxygen sensor was replaced. Thanks for the tips glad all is good with engine now.
