RUNS ROUGH WITH HEATER OR A/C

  • Tiny
  • kara2004
  • 2004 Nissan Sentra
  • 110,000 miles

Car runs very rough when heater, a/c or even rear window defrost is on

Sunday, August 21st, 2011 AT 4:19 AM

1 Answer

  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

If the idling speed has dropped, check the throttle body and idle control system. Cleaning them should help.

Check the alternator charging as well.

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Sunday, August 21st, 2011 AT 6:03 AM

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