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02-15-2007, 05:36 PM | #1 | |
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1997 Yukon Loss of power
When going up hill it seems to loose power and gets very lazy, once up hill power resumes and everything is good again.... Fuel preasure regulator problem????? Fuel pump going bad??????? Completely new tune, new fuel filter and air filter... Currently onboard I have headers, air intake and trottle body separator.
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02-15-2007, 05:57 PM | #2 | |
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Re: 1997 Yukon Loss of power
What is the fuel pressure at? Check pressure cold with engine not running. Then with engine running both cold and warm. Turn the engine off and watch the pressure for 5 minutes.
Any codes stored? Even if the check engine light is off, you should get it scanned. Has the intake manifold gasket ever been replaced? //2000CAYukon |
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02-17-2007, 08:59 AM | #3 | |
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Re: 1997 Yukon Loss of power
Never had check preasure, but will and post results, no significant codes..... Currently plan on rebuilding engine in Mid March. Looking into boosting around 350 HP. Hopefully this will aliviate the problems. Thanks for the tips
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02-21-2007, 12:40 PM | #4 | |
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Re: 1997 Yukon Loss of power
What are the signs that you have to replace the intake manifold gasket?
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02-21-2007, 01:47 PM | #5 | ||
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Re: 1997 Yukon Loss of power
Quote:
On the Vortec engines 96-99, it is common for the intake manifold gaskets to leak coolant. //2000CAYukon |
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02-21-2007, 02:45 PM | #6 | |
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Re: 1997 Yukon Loss of power
Oh I see.Has anyone had the TBI gasket go? What does the truck do when it goes? '95 yukon
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02-21-2007, 04:27 PM | #7 | ||
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Re: 1997 Yukon Loss of power
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//2000CAYukon |
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04-13-2007, 05:30 PM | #8 | |
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Re: 1997 Yukon Loss of power
We had this happen w/ our 97. We got it back in 98 and took it back to the dealership. At the time GM came out with an advisory(not necessarily a recall) that addressed this problem. They recommended a complete tune up, that the dealer took care of for us. Since then we haven't had any problems.
Hope this helps! |
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