Mercury Grand Marquis Questions Maintenance & Repair

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90

P0420 Code

Check engine light code reads P0420, what does this mean?

501 views with 27 answers (last answer about a year ago)

2000 Grand Marquis

Changed the transmission filter now it doesn't go into higher gears.. filter was a push on and didn't seam like a real tight fit could it have fallen out and caused this problem

36 views with 2 answers (last answer about a year ago)

I Have A 2000 Mercury Grand Marquis And The Oil Gauge Has Started To Jump F...

33 views with 2 answers (last answer about a year ago)

Car Problem

My car has been sputtering when i speed up and the check engin light has come on....could it be bad gas?

49 views with 1 answer (last answer about a year ago)

Door Locks Do Not Work In The Interior Lights Do Not Work

59 views with 1 answer (last answer about a year ago)
90

Car Engine Dies While At Red Light Or Standing Still...

I recently changed intake manifold, spark plugs, coil packs, battery, thermostat, and EGR recirculation tube. After all of this, my check engine light is on and continues to flash while hitting ga...

54 views with 17 answers (last answer about a year ago)

Does There Seem To Be Maintenance Problems With The 1997 Mercury Grand Marq...

49 views with 6 answers (last answer about a year ago)

Help Me Please

My car Will start but after 4 day or more it will start then die then won't start I jump it then it will start but when u take the jumper cables off then it dies what's wrong

22 views with 3 answers (last answer about a year ago)

Car Won't Crank Or Start

My 93 marquis won't start or even attempt to start doesn't crank or nothing my battery is new so is altnater and fuel pump what can be the problem

131 views with 4 answers (last answer about a year ago)

99 Mercury Marquis

After washing engine car stalls misses runs rough kills what happened

24 views with 4 answers (last answer about a year ago)

Brake Light Failure

Changed battery and alternator, now the brake lights do not work

45 views with 3 answers (last answer about a year ago)

2003 Mercury Marquis

My mechanic used a scanner on my car and it said fuel pump DVR mod disabled

23 views with 2 answers (last answer about a year ago)

Cluster

My gas hand my speed meter does not work an I kno it's a fuse but what fuse wood it b I can't find it

199 views with 2 answers (last answer 3 months ago)

Car Runs But Loses All Electric Power I Wait 10 Or 15 Mins. And Car Starts ...

45 views with 1 answer (last answer about a year ago)
20

Why Is Water Still Somehow Leaking Out Of My Radiator Wen I Just Had It Rep...

Ok I just had my radiator replaced along with the thermostat, and heat sensor. Why then does it start overheating and I have to put water back into the radiator?

50 views with 8 answers (last answer about a year ago)

Heating/cooling System Fan Speed

On control panel, the fan speed is full 'on' or full 'off'. All other functions work.

42 views with 7 answers (last answer about a year ago)

Wipers Only Work When I Push Button On Washer

wipers will not work when I turn them on. Only work when I push button on washer

21 views with 1 answer (last answer about a year ago)

Thumping Noise

I hear a thumping noise only when moving forward what could it be

38 views with 5 answers (last answer about a year ago)

Why Can't I Get Heat Auto Control 2009 Mercury Grand Marques

31 views with 2 answers (last answer about a year ago)

My 2009 Mercury Grand Marqus

my heater does not heat

37 views with 3 answers (last answer about a year ago)
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