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GMC YUKON DENALI 2007 engine jerk

Hello , i was in a petrol station last night , got me a full tank of gas when suddenly as i accelerated off the car started jerking aggressively and jumping , i braked and it kept on revving by itself with continious pulses of revs despite the fact that i took my foot of the gas peddle , then 10 seconds later the car was completely fine and i just drove off . I changed the fuel pump last year at around the same time as well as the baterry , what could be causing these problems ?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

johnsmith992
  • 37 Answers

SOURCE: 2001 Grand Am GT - RPMS bounce, car jerks and stalls

your gas tank needs flushing out,maybe got gritt inside. carburator needs filter needs cleaning .,possible air leak from gaskets., what about distributor breaking down

Posted on Jan 29, 2009

  • 5501 Answers

SOURCE: Car rev up and down at startup, also car jerks at release of gas

This sounds like a vacuum control problem. Since part of the problem is when the engine is cold; a thermal switch is venting vacuum until the engine warms up enough to shut down the thermal switch, thus restoring a steady idle. Vacuum can be affecting high rpms while running too. You could have a misrouted EGR vacuum line opening the valve at the wrong time. There are sometimes hose routing decals on the radiator shroud or under the hood. These can be visibly checked.

Posted on Apr 20, 2009

  • 7 Answers

SOURCE: car accelerates by itself and jerks when u tape on brake

check your throttle cable it might be getting stuck on something

Posted on Apr 28, 2009

  • 43 Answers

SOURCE: 2003 gmc yukon denali xl starts but gas not

if your engine starts up and dies right away the you probably have a fuel pump problem and the service ride control mean that your air ride compressor has gone bad just turn your key to the on position and wait about 30 seconds you will here buzzing from the left rear wheel area if the compressor is working

Posted on Jul 19, 2009

shameerariff
  • 89 Answers

SOURCE: "car jerks/jumps"

These is because of the improper combustion, so you better check the air filter and the exhaust along with that you replace all the spark plugs

Posted on Jul 22, 2009

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