Re: Got a few questions about my 93 GRAND MARQUIS!! check engine light is on!
Allot of times on early 90's Fords, the Check Engine light would go on and off on the highway and the cause was apparently an O2 Sensor issue. It sounds odd, considering the car would run fine but this happened often. Hope this helps you.
Master ASE Certified L1 Chrysler Technician- still a Ford fan at heart.
1964 Thunderbird Hardtop- Chantily Beige- 390 FE 4V V8-Uncle's Car
1966 Thunderbird Convertible- Red- 390 FE 4V V8- Uncle's other car- waiting for paint and body work!!!