Mechanics

RPM SURGES UP AND DOWN WHILE DRIVING

Ford Explorer

My son has a 1992 Ford Explorer XLT with an automatic transmission, and a 1994 engine with 58,000 miles on it and the engine size is a 4.0 V6. After the vehicle gets warmed up, the rpm goes from 2 and then surges to 3 - 3 1/2, and then goes back down. It does this without pushing on the accelerator. Then it will drop back down again and be o.K. For a few minutes and start to surge again. This is at a speed of 55 - 65. We took it in and the mechanic adjusted some kind of bands and serviced the transmission (cost $86), but it is still doing the same thing. My son is 16 years old and this is his first vehicle. I sure hope someone can give us some advice so we can get the problem solved.

Thanks!
Terri
Avatar
Terri david
July 9, 2007.




Check out the related content below while we wait for the question to be answered by a professional mechanic.


AD