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Just had the water pump changed in a 2000 grand am and now it is running really rough while idleing or sitting at a light drives great while driving service engine light came on and now the trac off light keeps going on and off the service engine light said misfire in cylinder 2 so had spark plugs and coil packs changed and still having the same problems any suggestions on what's wrong is greatly appreciated

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Is your water pump behind your timing belt ? if so timing belt was not put back on properly with the timing marks

Posted on Jan 19, 2013

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  • Adam vary Jan 19, 2013

    Yea I think so I know it's all in the same location connected all together how can u adjust the timing?

  • Adam vary Jan 19, 2013

    Yea I think so I know it's all in the same location connected all together how can u adjust the timing? And what will it mess up if I drive it like that for a week or 2?

  • josie casavan Jan 19, 2013

    well you need to have the proper timing of it,haynes repair manual will show that and also how to fix problem,its not going to be easy or fun

  • Adam vary Jan 20, 2013

    Actually strange as it sounds all that was wrong was the idle sensor

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Take it to autozone, advance auto or orielly's. They will hook up their computer diagnostic tester for free and tell you what;s wrong.

Posted on Jan 19, 2013

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Posted on Jan 02, 2017

Ticodude
  • 53 Answers

SOURCE: #5 cylinder misfire

I have a corolla and had #4 cylinder misfire also diagnosed at autozone. After changing the spark plugs, problem persisted, along with the same error code, so they recommended changing the spark plug wires, and that is what fixed it. I would have changed the rotor cap too, but was low on dough. Glad that was not the problem.

Posted on Dec 29, 2008

roniecon
  • 6826 Answers

SOURCE: 2003 kia # 3 misfire/ runs rough

Replace the coil for number 3 cylinder.

Posted on Nov 11, 2009

  • 110 Answers

SOURCE: i have a 99 grand am SE 2.4 4 cylinder and my

A misfire doesn't always have to be ignition... it's just the most common cause. Faulty or plugged injector, low compression. You need to check fuel pressure and test the fuel injector flow. Then check compression. If you don't have tools for these tests, take it to someone who does. Testing is much cheaper than throwing parts at the problem.

Posted on Feb 25, 2010

  • 85 Answers

SOURCE: 1998 Chev Astro 4.3L AWD. Rough idle & misfire Cylinder 6

Hi, the 4.3 liters have an injection system on them that can leak and will show up as a misfire. it is common but elusive to find. you might consider taking the van to a repair shop to have the problem diagnosed and go on from there.

Posted on May 22, 2010

alicantecoli
  • 22095 Answers

SOURCE: 1997 Jetta GLX VR6 giving

pull the multi plug connectors off the coil pack and check the connections ,and then rub the pins with a soft lead pencil and see what happens

Posted on Dec 12, 2010

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