1993 Mercury Cougar high idle and surging

1993 MERCURY COUGAR
140,000 MILES • 6 CYL • 2WD • AUTOMATIC
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NORMAL
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  • 1 POST
My cougar has the 3.8 l v6 at start up it idles really high and will accelerate on its own i dont really know how to explain it.While going to work today it was holding a speed of 70 even without the accelerater being depressed.could this be the throttle position sensor or the maf sensor??
Mar 11, 2009 at 3:08 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Try cleaning out the idle air control valve and test the TPS
Mar 11, 2009 at 5:16 PM
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