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

320

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 out of 2 people think this is helpful.
185

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 out of 1 people think this is helpful.
6,215

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 out of 3 people think this is helpful.
Best Answer

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.

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 2,146 nationwide Grand Marquis listings starting at $1,985.

ZIP:

Search Mercury Grand Marquis Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,060
#2 kbro
kbro
Reputation 2,040
#3 Js08016
Js08016
Reputation 1,580
View All

Related Models For Sale

Used Lincoln Town Car
41 Great Deals out of 2,109 listings starting at $1,995
Used Ford Crown Victoria
6 Great Deals out of 1,398 listings starting at $1,700
Used Chevrolet Impala
916 Great Deals out of 35,382 listings starting at $1,700
Used Dodge Charger
482 Great Deals out of 30,242 listings starting at $2,275
Used Ford F-150
3,104 Great Deals out of 209,133 listings starting at $1,200
Used Chrysler 300
482 Great Deals out of 22,773 listings starting at $1,000
Used Cadillac DeVille
5 Great Deals out of 1,958 listings starting at $1,600
Used Cadillac DTS
54 Great Deals out of 1,813 listings starting at $2,100
Used Chevrolet Tahoe
829 Great Deals out of 28,003 listings starting at $1,700
Used Buick LeSabre
11 Great Deals out of 2,267 listings starting at $1,299
Used Honda Accord
1,008 Great Deals out of 75,846 listings starting at $899
Used Toyota Camry
1,211 Great Deals out of 97,665 listings starting at $1,250

Used Cars For Sale

2007 Mercury Grand Marquis LS Premium For Sale
8 Great Deals out of 115 listings starting at $1,985