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At Idle, RPMs Fluctuate consistently when A/C is on

  • Thread starter Thread starter C4pt4inSh4d0w
  • Start date Start date Aug 6, 2018
C

C4pt4inSh4d0w

New Member
Aug 6, 2018
1
0
1
Los Angeles, CA
Aug 6, 2018
#1
  • Aug 6, 2018
  • #1
Hey everyone,

My 2005 V6 fluctuates between 500-750 RRMs every 5-10 seconds at idle when the A/C is on, but if the A/C is off it idles perfectly smooth. Using max A/C, spirited driving and driving for long periods all exacerbate the issue. I have already cleaned the Throttle Body and the Mass Air Flow Sensor and from what I've heard the 2005+ Mustangs don't have an IAC unit.
 
Last edited: Aug 7, 2018
W

Wesemannmr

New Member
Mar 19, 2019
2
0
1
Illinois
Mar 20, 2019
#2
  • Mar 20, 2019
  • #2
Did you ever find anything out about this.
 
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