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#1
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Help 99 Silv
While sitting at a stop sign or light my truck revs down, lights dim, revs up lights come back to normal, revs down, lights dim, revs up....etc so on and so forth until I take off. Any reasons? No other problems except after it sits over night it idles terribley on first crank, and has a small split second hesitation before accelerating. After that, it does the rev thing sometimes and sometimes it doesn't. Runs great all day after that. I have checked fuel pressure regulator and it's fine, just had new fuel filter, plugs etc...done. Fuel pump doesn'r whine...what could it be?
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#2
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Anyone?
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#3
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Re: Help 99 Silv
My old 88' tarus did the same exact thing, except when it reved down it would stall if i dident give it some gas. I dont know why it did it, that car was just a pice of shit and i was glad to get rid of it.
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![]() ![]() 2000 Silverado LS 4.8, K&N FIPK, Gibson Extreme Dual Exhaust, Line-X Bedliner, Black Speed Grille, Viper Alarm System, Custom Audio system.... (need to update my pic) |
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#4
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Re: Help 99 Silv
alternator???
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1968 Camaro 327 1999 Silverado 1500 Z71 LT {o,o} |)__) -"-"- O RLY? http://www.cardomain.com/id/korndogg002
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#5
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Re: Help 99 Silv
Idle Air Control Valve?? Not sure if the 99's have one or not???
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2008 GMC ACADIA SLE Edition, 7 passenger model I AM Canadian!! ![]() |
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