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car drives differently when air condition is on

cutehumorcutehumor Member Posts: 137
edited April 2014 in Mitsubishi
When I drive with the a/c on, the car hesitates when coming to a slowing stop while applying the brakes. It then quits hesitates when fully stopped and acts normal. This hesitation only happens when the a/c is on. Without the a/c on, the car drives fine. the a/c air is blowing cold air. What could be the problem?
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Comments

  • Mr_ShiftrightMr_Shiftright Sonoma, CaliforniaMember Posts: 64,482
    Is this car a stickshift or an automatic?
  • armtdmarmtdm Member Posts: 2,057
    The computer control chip that monitors the idle speed is a problem with mine, but it has always come back to normal but does cause some tachometer shifts when slowing down or at idle sometimes with A/C on.
  • Mr_ShiftrightMr_Shiftright Sonoma, CaliforniaMember Posts: 64,482
    I was thinking that if this is a stickshift, and IF he's in4th or 5th gear, and IF the idle compensator for the a/c weren't working, the transmission would cause the car to "buck", since it is in such a high gear at such a low near- idle speed.
  • cutehumorcutehumor Member Posts: 137
    Mr. Shiftright,

    This is a 4 speed automatic.
  • Mr_ShiftrightMr_Shiftright Sonoma, CaliforniaMember Posts: 64,482
    Oh, well, there goes THAT theory......
  • cutehumorcutehumor Member Posts: 137
    how much does it cost to replace this computer chip typically? and where is it located?
This discussion has been closed.

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