Sudden acceleration

1994 MERCURY COUGAR
32,000 MILES
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LIZ VIDRIO RIOS-BRETZ
  • MEMBER
  • 1 POST
My car will suddenly rev up while I am driving about 40 to 60 MPH. It will go to about 4-5 rpm's. It will go in for a few seconds can and can not be at same time as when the car down shifts, it will then go back to normal. The first time it happened was on a record heat day. I was running the air conditioner, but temperature gauge was normal. I may add that I live in the desert and it gets about 115 degrees.
Jul 3, 2016 at 3:22 PM
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HMAC300
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 48,601 POSTS
check transmission fluid it may be a transmission problem. if fluid is dark brown or black or discolored have a transmission professional look at it.
Jul 3, 2016 at 4:16 PM
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