Question about 1999 GMC Yukon

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No acelleration,as long as i push on the peddel lightley it will go if i push down to much starts hesatating so i let up its fine also no check engine light on its a 1999 yukon

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If the car has a mass air flow sensor try disconnecting it and the try revving up, if ok then replace mafs



Posted on Apr 30, 2010


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Have 2004 Jeep Grand Cherokee straight 6 starts and runs fine for about 10 minutes then starts getting hot ,smoke starts coming up where the intake exhaust to engine , when you acellerate the valves r

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May 30, 2011 | 1999 Ford Escort

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Foot peddel does not respone . it will start but if you push peddel down the motor pops back though air intake. change fuel filter and made shore getting gas to filter.

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Aug 12, 2010 | 1997 Chevrolet Astro

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If there is one its under the dash someware around the clutch peddel arm, it should look like the breaklight switch with a spring loaded pin that pushes in or relieses out( depending on witch way its set up) when you depress the clutch peddel, or it could be under the hood, either way its got to work off the clutch peddel.

Oct 23, 2009 | 2001 Dodge Ram 1500 Truck 2WD

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2002 hyundai accent my cluch peddel goes soft

check fluid level if low bleed out the system.If thats fine then you have slave cylinder Problem.Before Changing the cluch assembly check your master cylinder is pushing good pressure.

Jul 17, 2009 | 1998 Hyundai Tiburon

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I have 327 with two holly 650s on it I am getting a dead spot when I push the gas pedal down its about half thottle it kinda dies then if I give it another push on the gas it will go I changed the gas...

It could be a acceleration pump problem, or it could be that there are larger jets in the back carb. witch could make it hesatate when the secound carb. is starting to come in. Also holleys are a tempermental carb. and climent has a lot to do with there performance. You also might want to chk. the flote level, to low can cause it to hesatate.

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1 Answer

Trouble Accelerating and brakes are a little loose

Does it make a hissing noise when you push on the break peddel? or do you hear what sounds like a whiseling noise when its at idle? thats all signs of a vacume leak, it sounds me to be a bad vacume booster Witch will acount for you having to push hard on the break peddel, and it running bad when you step on the gas.

Mar 20, 2009 | 1991 Cadillac DeVille

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