1988 Grand Marquis acts like it's starving for fuel when at traveling at or above 50 mph. What would cause this? (See additional details)

Asked by Nov 21, 2014 at 10:47 AM about the 1988 Mercury Grand Marquis

Question type: Maintenance & Repair

Not a mechanical issue, chased the problem through the fuel system by
replacing all filters, cleaning lines, ect. Believe it is in the electrical
system but can't figure what relays (or other electrical components) are
not playing well.

1 Answer

1,275

Tough one. Make sure your gas cap is OK. Fuel pump? Tried cleaner in the gas? How old is your gas cap? They go bad.

Your Answer

Add photo

Related Questions

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,650
#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 1,278 listings starting at $1,995
Used Lincoln Town Car
28 Great Deals out of 1,791 listings starting at $1,495
Used Cadillac DeVille
5 Great Deals out of 1,744 listings starting at $2,200
Used Dodge Charger
530 Great Deals out of 28,913 listings starting at $2,500
Used Ford Taurus
265 Great Deals out of 19,092 listings starting at $1,499
Used Buick LeSabre
16 Great Deals out of 1,938 listings starting at $1,588
Used Ford Mustang
712 Great Deals out of 44,995 listings starting at $1,500
Used Ford F-150
2,173 Great Deals out of 195,111 listings starting at $290
Used Honda Accord
1,051 Great Deals out of 68,868 listings starting at $1,000
Used Toyota Camry
1,219 Great Deals out of 84,969 listings starting at $750

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
25 listings starting at $6,500
2010 Mercury Grand Marquis For Sale
82 listings starting at $4,795
2009 Mercury Grand Marquis For Sale
4 Great Deals out of 90 listings starting at $2,950
2008 Mercury Grand Marquis For Sale
13 Great Deals out of 163 listings starting at $2,250
2007 Mercury Grand Marquis For Sale
9 Great Deals out of 133 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.