1991 Ford Thunderbird Repair Question
Topics covered: Miscellaneous.
Mileage: 150,000 miles.
Mileage: 150,000 miles.
Asked on April 5, 2012
I have a 91 thunderbird with a 3.8 i installed rpm gauge and would like to know where should needle be at when in park and warmed up
Just woundering
Answer
Replied on April 5, 2012
That will vary with temperature and other conditions. It's controlled by the computer.