iceman1575 Posted February 10, 2013 Author Report Share Posted February 10, 2013 tell you right had the same prob with my 5.3l 2002 yukon check the intake gaskets if they are plastic they most likely are leaking (they were on factory recall) get some steel and rubber ones haven't had an issue since otherwise your maf is dirty or going out alright now i found the gaskets http://www.oreillyauto.com/site/c/detail/FEL0/MS98016T.oap?pt=02293&ppt=C0026 I'm not sure what's going on.. I'm getting MAF codes now, but it's not running any different than before...I'm gonna try unplugging it and see what happens when I gun it (besides loss of power...) we may change the MAF anyways, but I'm taking it down to either the fuel pump, the catalytic converter, or the intake gaskets... Looks like we're gonna take it to a good mechanic this week...hopefully. POTATO! Link to comment Share on other sites More sharing options...
big dee Posted February 11, 2013 Report Share Posted February 11, 2013 I could be a bad lifter Link to comment Share on other sites More sharing options...
big dee Posted February 11, 2013 Report Share Posted February 11, 2013 That's weird sounding Link to comment Share on other sites More sharing options...
iceman1575 Posted February 22, 2013 Author Report Share Posted February 22, 2013 Well for those that were wondering, I was throwing Catalyst Ineffiency codes, so I had the cat's cut off, drove it down the road, and she had power like I wouldn't believe. $500 and two catalytic converters later, she's running like a dream. 0-60 in 8 seconds, that's better than ~20 seconds POTATO! Link to comment Share on other sites More sharing options...
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