Question about 1999 Pontiac Grand Am GT

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Tham@look.caOver heating-runs rough at start up-sets code ...missfire #2 cylinder.

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Either the fuel injector is blocked or not functional on #2 cylinder, or the coil pack is not firing the spark plug there.

Check coolant level and if thermostat is stuck closed and if the fan is not running for the radiator.

Posted on Sep 10, 2010

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Posted on Jan 02, 2017

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2006 ford freestar po304


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My 1997 f150 4.2 is running very rough! The fuel pump, plugs, engine coil pack, and injectors have all been changed. CSS were all cut down and were welded back up. The check engine light came on and the...


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I have a random cylinder misfire code what to do?


Depending on the miles on it, Usually a missfire has to do with a bad spark plug or spark plug wires, If they never been changed, If it has verry high mileledge on it end was not maintained well, There could be low compression in a cylinder, That can cause it to run rough, Hope this helps you out,

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I have a 2002 Nissan Altima 3.5 SE About a week ago the check engine light came on, it started running rough, especially at idle. Computer diagnostic results showed missfire in cylinder 6. I replaced...


i would definately replace the coil. pretty certain that will solve your problem. do not drive with misfire or that can cause fruther damage such as catalyst failing, which is prety expensive.

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Check engine light flashing runs rough not firing on all cylinder2000 lincoln navigator with large triton engine Hooked up diagnnostic and it said 1. system too lean bank #2 2. Unable to bleed up fuel tank...


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1 Answer

I have a 1995 saturn sl and it just started idleing up to 3 0r 4 rpm's when i start it and sometimes cuts off going dwn the rd service engine light comes on.this morning the same thang but it now feels...


Sounds Like the Common Item on these Saturns, and that is ( (COIL PACK) you Probably have the Missfire on Matching Cylinder BANK . You DO NEED to Check For Codes to ZERO in on it I think you will see a CODE po161 - 166 < I Believe these are the Codes that set for MISSFIRE .

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