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#1
05-22-2005, 03:42 PM
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loss of power and knocking goinbg up hill but when go down hill things are fine
needing to know
 what could be the problem when i go up hill i loose power and oil gauge drops and i get some knocking from the engine. but when i go down hill things go back to normal 
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#2
05-22-2005, 04:52 PM
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Re: loss of power and knocking goinbg up hill but when go down hill things are fine
Have you checked for vacuum leaks? does it happen if you accelerate quickly from a stop?
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#3
05-22-2005, 10:27 PM
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Re: loss of power and knocking goinbg up hill but when go down hill things are fine
crappy fuel.....water in fuel......or use a couple bottles of good fuel injector cleaner.....
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#4
05-23-2005, 01:21 AM
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Re: loss of power and knocking goinbg up hill but when go down hill things are fine
Had a similar problem on an old truck and noticed it burnt a buttload of oil and it was too low.
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#5
05-23-2005, 06:42 PM
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Re: loss of power and knocking goinbg up hill but when go down hill things are fine
That is what i was thinking, maybe it is low on oil and when going up hill there is no oil for the sump to get at. Just a thought......
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**2007 Avalanche LT. **  6" Pro Comp lift 305/55/20 BFG A/T KO'S K&N FIPK GENII Flo Pro V force muffler & 4" slash cut stainless tips Color matched front and rear Bowties 3" polished stainless bull bar and Nerf bars
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#6
05-26-2005, 02:10 PM
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Re: Re: loss of power and knocking goinbg up hill but when go down hill things are fine
Quote:
no the only time this happens is when i go up hill i can gun it when i am iaround townm and things are fine. thanks
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#7
05-26-2005, 02:14 PM
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Re: Re: loss of power and knocking goinbg up hill but when go down hill things are fine
Quote:
i have checked my oil everyday and i have plenty of oil. i have put in oil treatment and fuel cleaner but still have thesed problems. thank you for your help 
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#8
05-26-2005, 04:02 PM
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Re: loss of power and knocking goinbg up hill but when go down hill things are fine
How many miles on the engine? When was the last time the fuel filter was changed?
Put a bottle of injector cleaner through it, like silveradoking said. If that don't work, try changing the fuel filter, check the air filter, etc.
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