1999 Mercury Marquis Repair Question
Topics covered: Battery, Check engine light, Engine.
Mileage: 83,000 miles.
Mileage: 83,000 miles.
Asked on November 26, 2010
Will not idle
1999 mercury grand marquis will not run at idle. new battery and charging system checkes ok.
Asked by normand107Answer
Replied on November 26, 2010
Have you checked for vacuum leaks? Have you checked the idle air control valve? Has the check engine light come on?
