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1999 Mitsubishi Galant Question: I have a 99 galant which has an rpm needle problem.

 

Question

omarmendez9, 2.4L 4 Cylinder, Brooklyn, NY, December 28, 2011, 18:06
 Rookie

I just had my timing belt and crankshaft sensor replaced. Car runs fine but once i turn on the heater the cars rpm/idle needle starts moving uncontrollably and the car start to misfire by shaking and not wanting to accellerate. The check engine light also goes on but i had the light check and it says it needs a tuneup which i already did with new parts. I dont know what to do.

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  • Answer #1

    December 28, 2011, 19:21
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     Master

    you need to resolve the light issue which is telling you about a missfire. start with a compression test to see if there is any valve damage.

    Roy

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    omarmendez9, December 28, 2011, 21:25
     Rookie

    the check engine light appears once the rpm/idling gauge starts to spin uncontrollably. Once that occurs the car begins to lose power, shake and not want to acccellerate. I also change both coils.

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  • Answer #2

    BroadwayAuto from Broadway Auto Body & Repair LLC, December 30, 2011, 08:41
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     Journeyman

    I want to make sure I understand.....the engine misfires only when you turn on the heater?......or the misfire becomes worst when you turn on the heat?

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    omarmendez9, December 30, 2011, 09:43
     Rookie

    The engine starts to misfire only when i turn on the heater. It is very weird.

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    BroadwayAuto, December 31, 2011, 08:34
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     Journeyman

    A diagnostic is needed to resolve the problem........has anyone replaced the radio or installed alarm, made any changes electronically?

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