Pontiac - Aztek :: Hesitate Then Jerk Forward And Go When Hit Gas To Speed Up
Jan 24, 2012
I have a 2002 Pontiac Aztek with about 170,000 miles on it. About 3 weeks ago, it began having problems when I would hit the gas to speed up. It would hesitate, and then jerk forward and go. Then about 2 weeks ago, I was driving on the highway and the engine just suddenly stopped - as if I had turned off the key.
There was no warning, no sound, nothing. I kept hitting the gas the whole time and it started up again after a minute. I replaced the fuel filter and it ran well for a week. Then it happened again, but this time the engine completely turned off and I had to turn the key to restart the engine. The engine started with no problem.
I tried to drive to the mechanic, but the engine stopped & started again on the way, so I ended up having it towed. It is not driving roughly or idling roughly, it doesn't make any strange sounds and no warning lights come on. When the engine stops, all electrical components are still working (lights, radio, etc.). My mechanic appears to be stumped. What could be causing this?
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Here are known issues and recent work I have had done… in November I replaced my complete exhaust system myself, including the downstream oxygen sensor. The cat is now bad and it will rattle. I had a mechanic replace my water pump, timing belt and all pulleys and tensioners associated with it about 2 weeks ago. The hesitation predated this problem.
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The problem still exists.
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I have a 2011 Chevy Impala. When accelerating from a stop it will frequently stutter then jerk forward. The first time this happened I thought someone had rear-ended me.
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I just purchased a 2001 Dodge Durango 4wd with 140,xxx miles on it. My issue is that whenever I accelerate it hesistates and if I am going at a high speed like on the interstate or expressway it sometimes slows down (drastically) if I'm going uphill. What can be causing this?
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The 91 bonneville stopped having forward gears but was drove back in reverse about 4 miles, reverse appears to work fine does this thing need new transmission or is there an easier fix...
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It started by a minor sputtering while my gf was driving it. It became seriously worse to where while driving at a steady speed it would jerk badly but if I drove and shifted at a high rate of speed if was fine until I released the gas pedal and symptoms returned. I let it set for a week then drove it and it was fine until I shut the engine down and restarted and the symptoms returned. This scenario has happened twice. Autozone tester reported a bad cam sensor. I replaced it and it did not work. I foolishly asked an online mechanic who said it was a crank sensor. I changed that too plus put a new fuel filter on it. Before all this began my truck had been performing perfectly it only has 84k miles but my gf said that she had heard a sound like a pulley was squeaking but I never heard a sound.
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I have a 06 f150 king ranch and I have had this issue before and had tran. rebuilt and motor work done for this and other issues. The jerking stopped for a while but now it is back!
The best way I can describe it is when I'm at a certain speed or have set the cruise, it feels as if it the overdrive has been pushed but it only last for a quick moment then it will continue to do this until I accelerate. Its not a steady jerk.
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I'm experiencing the tug/jerk/shuddering in my 2012 Escape v6. It happens more around 70mph or 2,000-2,500rpm.
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