Mercury Grand Marquis Questions Maintenance & Repair
Still Running Rough ?
Hello everyone this car is a pain in my ass. SOHC. It started with vanilla milkshake in the oil . Replaced head gaskets , intake manifold , went ahead with new coil packs and plugs , and still have...
89 Mercury Grand Marguis AUTO Temp Setting Not Working.
I have a vacuume issue that when I accelerate when the AC is in 'Auto' it stops blowing, deaccelerate and it blows cold again. Lately the 'auto' selection stopped working, but when in AC 'high fan' ...
Why My Dashboard , Tail And Tag Lights Nit Working
What would make my dashboard light, my tail lights, and my break lights stop working on my 1993 mercury grand marquis g
The Heater Is Not Working Properly
the core is hot but there is no heat getting into the car. It only blows out cold air
How Do I Get It Out Of Security Mode?
I bought a 2001 Mercury Grand Marquis and it had no key a changed out the ignition and I need to know if the key needs to be programmed to the car. If so can I do it or do I need to take it to a d...
Why Does My 2009 Grand Marquis Idle Rough?
Replaced my intake manifold and now my car idles rough
Idles Great, Severe Loss Of Power Under Load
I have a 2000 Grand Marquis and just replaced the intake manifold after it sat, not running for 18 months. The car starts and idles beautifully, but on the test drive, it lost almost all power when tr...
Grand Marquis 2002 A/C
My AC does not turn on in a regular basis, but if the knob is on high it will randomly turn on and off. If i try to regulate the speed it will turn off again. When it turns on the air comes from the d...
Lost, Possibly Multiple Issues
I have a marquis that's has baffled 4 shops. Sometimes it runs fine. Usually when I take it to a mechanic. However when it acts up sometimes it stalls everytime I hit the brake. But can keep it run...
Driver Power Seat Stuck On Recline
When I connect the driver seat harness it automatically reclines all the way back and driver seat controls do not work in any positions I have already replaced the seat switch
Fuse Blows After Steering Box Replacement
I replaced the steering box in my 2002 Grand Marquis and now have two problems. The steering is off center and a little tight. I am told an alignment will fix this? Second is whenever I turn on the ...
My 2001 Grand Marquis Oil Gauge It Below Red And Running Roughe
My 2001 Grand marquis oil gauge it below red and it running rougher than usual I have new oil pump new oil pressure sensor and I'm running 5w 20 synthetic oil and I'm trying to figure out why I have...
Stalling Problem And Battery Light
Hello I have 2003 grand marquis with 148k it was driving fine then out of no where my battery light came on I had the battery replaced I had the alternator check the first thing we did was unhook ...
2004 Mercury Grand Marquis Restarting Itself
My car will literally restart itself while driving. It starts and runs just fine. Slight corrosion on the positive battery cable end but nothing that looks wrong there.
2008 Grand Marquis LS
So I ran out of gas in my 2008 grand marquis. Due to the gas gauge not working, I couldn’t tell how much gas was in there. So i would push the select button to check the gas mileage but for some r...
Grand Marquis Chooses When To Start
Built in 2004, but some parts fit as 2005. ISSUE: Two months back, she wouldn't start occasionally. Cold mornings, she would never start on. At that time, turning the key in the ignition rendered...
Car Has Power But Wont Turn Over
I tried to change my heater core so my dash is all tore apart, then my instrument cluster stopped working and it wouldnt turn over at all. I got it to start one time by putting pressure on the gears...
Why Do I Have Poor Acceleration When Its Cold Outside And Vehicle Is Warmed...
I have a 2010 Mercury Grand Marquis with an erratic acceleration in cold weather and is warmed up. It bucks and jerks and revs erratically for like the first 30 or so minutes then clears up. It star...
Is An 04 Mercury Enterchangable With A 2010 Mercury Marquise?
I have an 04 grand marquis is it enterchangeable with a 2010?
Taillights Not Working On 2003. Mercury Grand Marquis
Taillights work somewhat intermittently withheadlights on auto. Already had Lcm recall done fuses and bulbsgood. Any ideas? Thank you
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