hesitation
#1
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hesitation
Hey guys I was wondering if anyone has experienced a problem like this and what i should check first. Its a 03 at cc drw 4x4 with 281,500 on the clock. The truck will hesitate when you get on the throttle light or hard. Kinda lays over and barks right to life sometimes puffing a little soot. Truck has a triple dog set on tow, straight pipe and a k&n drop in with modded stock air box. It starts fine but has been hard to fire occasionally in cold weather. I realize that I'm most likely going to need injectors but would like to know if some thing else is causing the hesitation. I haven't check the fuel pressure yet either plan on looking at that this weekend. Looking for some other clues. Thanks.
#2
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Location: In Oroville, Ca., same house for past 46 yrs!
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could be mistaken but sounds like a dirty TPS or APPS in our cases. I drilled a tiny 1/8" hole in the back being careful to just barely go thru the case and sprayed contact cleaner in there and shook the be-jesus out of it. Blew it out with some compressed air, did that twice and haven't had any hesitation since then which was about 70-75K miles ago.
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