Ford Fusion SE 4 cyl revving erratically

Asked by Aug 28, 2017 at 12:43 PM about the 2010 Ford Fusion SE

Question type: Maintenance & Repair

Ok so I’m not a car expert so bare with me. I have a 2010
Ford Fusion. I purchased it in 2011 with about 50k miles
on it. About a year later a wrench light came on and the
car would stall and rev the engine not letting me drive it.
My dad replaced the throttle actuator and it’s been fine
since. I’ve recently encountered kind of the same problem
but not quite. A couple months ago, the air conditioner
would not blow hot or cold air. I could hear it trying to
switch but it couldn’t do it. My dad took out the AC door
actuator and switched it to cold so now it constantly
blows cold air(I planned on replacing it but haven’t had
time). Recently, my car stated revving like before but very
minor. No lights came on my dashboard. The fix I had for
that was turning off my AC and it would go away. Now, it’s
revving pretty bad and turning the AC off does not help
unless I turn it off and put the car in park or neutral. The
revving happens at all times when the car is in drive and
it’s getting pretty scary. I’m asking for advice because I’m
not sure replacing the throttle actuator again is the issue
this time.

1 Answer

261,975

Could be a vacuum leak or other issue. Sounds like you've been attempting to keep the car running correctly by yourself on the cheap for a year or more. Time to get it into the shop for diagnosis if you want it running correctly.

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