Stumbling/misfiring only on hills and extended drives..
#22
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just took it in this morning, ill let ya know what they find.. it did get progressively worse though, now once its warmed up it misfires like crazy at idle and on the street.. i did check the vacuum lines as well, even removed the two vsvs and capped off unnecessary ports per 4crawlers direction, checked egr function as well while i was at it, as soon as i applied suction to the egr the truck died..
#24
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Shop said everything tested out 100%, full fuel pressure and spark, AFM and tps are good, they're gonna try a TB and injector cleaning.. See if maybe the injectors are clogged.. So well see..
#28
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yeah, after replacing a couple more hoses, cleaning tps and afm contacts, and a valve adjustment, which really helped the valve tick i have had forever, it now runs just as it did before.. At idle it still misfires a little bit, doesnt matter what ohm range i set the tps idle sjustment at, high range or low rang, but it has for the past couple years, no idea why, but it doesnt do it during driving anymore which was the main problem.. dunno what the exact issue was cuz i did all that in one afternoon, but it was one of them..
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