2001 Mercury Marquis Repair Question
Topics covered: Gas, Vacuum leak, Fuel injector.
Mileage: 99,000 miles.
Mileage: 99,000 miles.
Asked on December 8, 2012
Mercury Marquis Gas Problem
The car is in park at idle run's fine give it some gas and it run's rough give it a bit more gas and it smooth's out like a dead spot in the throttle same when driving
Asked by JoLiFaEmAnswer
Replied on December 8, 2012
Check for vacuum leaks and check for tune up
Replied on December 31, 2012
Same thing is happening to my 1995 Grand Marquis with 242.000 and I just had a tune-up. I will look for vacuum leaks and in fact considered this as a problem. Might it also be a problem with a blocked air intake or a blocked fuel injector?
Replied on December 31, 2012
Actually, the roughness happens at idle and smooths out with higher revs, which is a little different from JoLiFaEm's problem.