Question about 1999 Pontiac Sunfire

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Problems In a cylinder of pontiac sunfire

Hello

I have serious problems with my pontiac sunfire 1998, It got a problem in one cylinder but the mechanic told me that he doesn´t know why because it has good spark, and everything is ok also he has checked the injectors and all are ok

what can I do?

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  • tha_iceman91 Mar 08, 2009

    It start well, but like if one cylinder doesn´t work the mechanic told me that he has already checked the bobbin, the injectors even they has checked the injectors in a lab and said that all of them are ok, but the problem still, the problem that the scanner says is "LOW SPARK"



    thank you



    and sorry my english

  • tha_iceman91 Mar 08, 2009

    It has a 2.4 twim cam engine, and yeah it has above 100 psi in each cylinder

  • tha_iceman91 Mar 09, 2009

    Ok thaks so much, I´ll try to get another one coil adapter in order to see if the problem stop

  • HomeTime May 11, 2010

    what is the car doing ?

  • johanne Sep 11, 2013

    j'ai un^probleme avec un radio de pontiac sunfire 2000 car la radio tombe sur un locked et il ne marche plus veuillez me repondre svp merci a vous mon adresse email johanne_cotton@hotmail .com merci a l,avance

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  • Pontiac Master
  • 575 Answers

With the coil pack sometimes water gets underneath causing the spark to travel underneath it.
otherwise use above fix.

Posted on Jan 28, 2013

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  • Master
  • 4,669 Answers

What engine? Does it have good compression?

Posted on Mar 08, 2009

  • Clint Smock
    Clint Smock Mar 09, 2009

    If it is a miss, with a quad four, then the problem is likely the coil adapter. It is the big plastic thing under the top cover that has the four poles on it that the plug boots clip on. These are prone to cracking and causing lots of problems.

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