Hope you guys can help. This not my truck, but my wife's 93 Escort. It's got 118,000 mi on it and has been a good car. The last couple of days when she puts it in park the engine revs up until she shuts it off. Any thoughts?

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98 F-150 XL 4.2 Supercab, Pacific Green
Leer cap
Trident bug shield
Kenwood KDC 515s cd player
OMI fender trim
F-150 Online sticker
Mobil 1 oil

 

Check for a loose vacuum line. May be it.

 

Try the throttle position sensor. I had this very same thing happen on my '92 F-150, 5.0. A new TPS fixed it.

Hope it helps

 

Thanks for the help guys. I'll see what I can do to check those tomorrow.