- Joined
- Oct 25, 2007
- Messages
- 19
- Points
- 3,101
- Age
- 50
- Vehicle Year
- 1984
- Transmission
- Automatic
On my 91 explorer the idle speeds goes up and down when it is idleing, about 200 to 400rpm consistantly any ides on what may cause this? Just did complete tune up and air and fuel filter.
