1991 Mercury Marquis Repair Question
Topics covered: Check engine light, Engine, Trouble code.
Mileage: No information provided.
Mileage: No information provided.
Asked on February 12, 2011
Car
My 91 grand marquis overdrive gear wont work past 40 mph is that normal
Asked by tweezy1325Answer
Replied on March 13, 2011
The overdrive should work after 40mph not before. If the check engine light is on, have the computer scanned for trouble codes.
