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Surging when AC is on

Tiny
MISTI JOHNSON
  • MEMBER
  • 2010 MAZDA 6
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
The car seems to idle fine until I turn the AC on. Once I turn the AC on the idle revs up for about three seconds and then drops down and then revs up for three seconds and then drops down it continues this pattern until I turn the AC off. This happens with the car and drive with the car also with the car in neutral it also happens while driving the car.
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Tuesday, May 8th, 2018 AT 3:37 PM

1 Reply

Tiny
JIS001
  • MECHANIC
  • 3,408 POSTS
The first thing I recommend doing is inspecting the throttle plate for carbon and cleaning out if it is dirty. After cleaning if you still have the same concern then you may need a new throttle body.
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Tuesday, May 8th, 2018 AT 10:59 PM

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