My 2005 Marquis won't start after sitting for a week,any solutions?

Asked by Jan 04, 2016 at 12:56 PM about the 2005 Mercury Grand Marquis LS Premium

Question type: Maintenance & Repair

My car generally runs great, Some things I checked is the fuel pump is working, That should leave spark, I checked the fuses and relays. I am thinking plug and coil packs ,but they all couldn't go bad at once. It should still start but run rough. All it does is crank and crank. It ran fine when I parked it.

4 Answers
980

answered 2 years ago

Use a gage and check fuel pressure, engine cranking. The initial prime is good as far as it goes, also, hearing the pump run doesn't mean it is making good fuel pressure. Did you visually check for spark at the spark plugs? If your missing rpm signal it can cause several issues. Don't replace anything unless testing points you in that direction.

2 people found this helpful.
Mark helpful
195

answered 2 years ago

start simple, is that battery good, is there something draining your battery like a stereo of interior light or door or trunk not closing. if it isn't battery or starter related and you get it started but runs rough, does it smooth out after the engine has ran a while?

1 people found this helpful.
Mark helpful
7,075

answered 2 years ago

Is the theft light flashing? Can you use ether to get it to fire over? Is there spark. If no to all then try unplugging the crank sensor connector clean it with brake clean and plug it back in. Sometimes oil can seep through the sensor and cause an open in the crank signal.

3 people found this helpful.
Best Answer Mark helpful

answered 2 years ago

No the battery has plenty of juice.And it never ran rough. No it will not start with ether. I am changing the plugs tomorrow and go from there. Thanks for the ideas.

Mark helpful

Your Answer

Related Questions

  • My 2005 Marquis won't start after sitting for a week,any solutions? 4 answers

    My car generally runs great, Some things I checked is the fuel pump is working, That should leave spark, I checked the fuses and relays. I am thinking plug and coil packs ,but they all couldn't go bad...

    2005 Mercury Grand Marquis LS Premium

    -

    Maintenance & Repair

  • Grand Marquis won't start. 4 answers

    My '04 grand marquis won't start. Hadn't had any problems with it prior to this. Put gas in the car, got 1/2 mile from the gas station and it started to lose power on acceleration. Got another half...

    2004 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • How do I start my 2000 mercury grand Marquis after changing the starter and alternator? 3 answers

    I recently had a alternator catch fire from the top by wires.. Changed wires that were damaged,alternator,and starter figuring that fire blew it out but still it won't start....also I was told i...

    2000 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • Grand marquis won't start 1 answer

    I have a 03 grand marquis I just put a new starter a new alternator and new battery and it still won't start or crank.. Can anyone help me with this problem. ..

    2003 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • 2001 Grand Marquis cranks but won't start??? 1 answer

    Got in the vehicle last week to take my little sister to school, started up fine and warmed up but right before leaving the car stalled and shut off. Cranks fine but will not completely turn over wi...

    2001 Mercury Grand Marquis GS

    -

    Maintenance & Repair

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,192 nationwide Grand Marquis listings starting at $1,200.

ZIP:

Shortcuts

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,980
  • #2
    kbro
    Reputation
    2,210
  • #3
    Js08016
    Reputation
    2,040
View All

Related Models For Sale

Used Lincoln Town Car
24 Great Deals out of 1,358 listings starting at $1,995
Used Ford Crown Victoria
710 listings starting at $1,700
Used Chevrolet Impala
397 Great Deals out of 25,595 listings starting at $799
Used Cadillac DTS
39 Great Deals out of 1,357 listings starting at $2,995
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Dodge Charger
242 Great Deals out of 32,689 listings starting at $1,800
Used Mercury Marauder
30 listings
Used Chrysler 300
313 Great Deals out of 19,328 listings starting at $1,899
Used Chevrolet Tahoe
528 Great Deals out of 36,655 listings starting at $1,375
Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Ford Taurus
186 Great Deals out of 15,917 listings starting at $981
Used Toyota Camry
761 Great Deals out of 70,900 listings starting at $1,200
Used Cadillac DeVille
1,272 listings starting at $1,988
Used Honda Accord
424 Great Deals out of 101,059 listings starting at $1,200

Used Cars For Sale

2007 Mercury Grand Marquis LS Premium For Sale
6 Great Deals out of 74 listings starting at $1,200

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.