Car not starting

Asked by May 11, 2015 at 04:14 PM about the 1999 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

My car will start an unpredictable number
of times when the fuel pump relay and the
ac cutout relays are tinkered with.

I have new battery new starter new solenoid
new fuses new fuel pump relay new battery
terminal eyeloops new alternator . I have
tightened all teeth on relay boxes I've
cleaned all ground wires and tightened.
Theft prove out is good keys are good
ignition and transceiver good etc.

Any ideas? Desperate

6 Answers

7,595

inspect the underside of the power distribution box that has the fuel pump relay for corrosion or loose wires, also check the condition of all ground connections.

Underside looks good. Wires seem all the same and the grounds are clean and tight

270

Replace spark plugs if not working get new coil packs/spark plug wire/connectors whatever u wanna call it....

7,595

Possible ignition switch intermittent fault

Let me ask y'all this. I cleaned the relay box ground really good but it didn't start. I then pulled the relay and put it back in. The car has been starting ever since. Is there any possibility that after the ground was put back I kind of reset it by pulling and plugging relay back in? In other words did I fix the problem by cleaning the ground wire even though it didn't start immediately after?

7,595

Clean contacts are crucial

Your Answer

Add photo

Related Questions

  • Car not starting 6 answers

    My car will start an unpredictable number of times when the fuel pump relay and the ac cutout relays are tinkered with. I have new battery new starter new solenoid new fuses new fuel pump relay ne...

    1999 Mercury Grand Marquis 4 Dr GS Sedan

    -

    Maintenance & Repair

  • Not starting after leaving it sit over night 34 answers

    I have a '99 mercury grand marquis. I just got a brand new starter put on and some wires cleaned up. I paid an extra $90.00 an hour on a machine for the wiring and nothing came up. It starts up but af...

    1999 Mercury Grand Marquis 4 Dr GS Sedan

    -

    Maintenance & Repair

  • Engine does not start, it cranks but not starting, good battery, new plugs,new ignition system 1 answer

    suddenly the engine failed to start. it cranks but will not start. 1- new battery 2- new ignition system note:- before that problem the engine shuts of on lift turns if the fuel tank level is lower ...

    1989 Mercury Grand Marquis LS

    -

    Maintenance & Repair

  • my car will nt turn over not at all 20 answers

    i recently replaced the tension pulley and serpentine belt on my car and bought a new battery bt when i try to start it it does nothing but the car was sitting in my yard fr six months before i repl...

    2003 Mercury Grand Marquis LS Premium

    -

    Maintenance & Repair

  • Car 1 answer

    When I put my key in my car the key go all the way back like something broke but my car lights turn on but when I take the key out the lights and radio stay on??

    2002 Mercury Grand Marquis LSE

    -

    Maintenance & Repair

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,794 nationwide Grand Marquis listings starting at $2,250.

ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,640
#2 kbro
kbro
Reputation 2,100
#3 Js08016
Js08016
Reputation 1,820
View All

Related Models For Sale

Used Ford Crown Victoria
13 Great Deals out of 1,275 listings starting at $2,100
Used Lincoln Town Car
32 Great Deals out of 1,772 listings starting at $950
Used Chevrolet Impala
595 Great Deals out of 35,247 listings starting at $899
Used Cadillac DeVille
5 Great Deals out of 1,729 listings starting at $2,200
Used Ford Taurus
258 Great Deals out of 19,042 listings starting at $1,499
Used Buick LeSabre
16 Great Deals out of 1,919 listings starting at $1,588
Used Ford Mustang
694 Great Deals out of 44,971 listings starting at $750
Used Ford F-150
2,128 Great Deals out of 195,104 listings starting at $290
Used Honda Accord
1,034 Great Deals out of 68,902 listings starting at $1,000
Used Toyota Camry
1,197 Great Deals out of 84,710 listings starting at $750
Used Chevrolet Silverado 1500
1,916 Great Deals out of 181,825 listings starting at $1,595

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
23 listings starting at $6,500
2010 Mercury Grand Marquis For Sale
88 listings starting at $4,795
2009 Mercury Grand Marquis For Sale
3 Great Deals out of 87 listings starting at $2,950
2008 Mercury Grand Marquis For Sale
12 Great Deals out of 165 listings starting at $2,250
2007 Mercury Grand Marquis For Sale
9 Great Deals out of 137 listings starting at $2,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.