2011 Mercury Grand Marquis Questions
Get answers to questions about your 2011 Mercury Grand Marquis at RepairPal. Find solutions, diagnose problems and get back on the road.Refine by vehicle
Air works fine, when I want to make it warmer by raising the
Temperature it plows cold air
Ford dealer has replaced coils on 5,6&7 and eliminated fuel injectors. My past experience from the old days says the timing is off. The Ford analyzer says within specs. How can you determine timing issues?