What is required of a "Full" tune-up, assuming I need to do a full tune -up? Engine Light on and per diagnostic tool says Nbr 4 cylinder misfiring.

Asked by Apr 07, 2015 at 09:44 AM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

2000 Mercury Grand Marquee
170,000 miles
Running a little rough, especially uphill.  Don't want to spend to much as giving it to a friend, but want it in a good enough shape that it won't leave his wife and children stranded on the road.

2 Answers

69,295

Replace the spark plugs and the spark plug boots. Inspect air filter and PCV valve, replace as needed. Replace the fuel filter. HTH. -Jim

7,665

The 4.6 loves new plugs, it wakes them right up

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,700
#2 kbro
kbro
Reputation 2,120
#3 Js08016
Js08016
Reputation 1,840
View All

Related Models For Sale

Used Ford Crown Victoria
10 Great Deals out of 1,237 listings starting at $1,995
Used Lincoln Town Car
44 Great Deals out of 1,813 listings starting at $1,000
Used Chevrolet Impala
559 Great Deals out of 34,675 listings starting at $1,000
Used Chevrolet Tahoe
610 Great Deals out of 35,916 listings starting at $1,000
Used Ford F-150
2,204 Great Deals out of 180,758 listings starting at $1,500
Used Ford Mustang
733 Great Deals out of 42,724 listings starting at $1,300
Used Ford Taurus
261 Great Deals out of 17,940 listings starting at $1,499
Used Cadillac DeVille
1,669 listings starting at $1,995
Used Buick LeSabre
20 Great Deals out of 1,885 listings starting at $1,588
Used Honda Accord
992 Great Deals out of 62,549 listings starting at $999

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
3 Great Deals out of 81 listings starting at $3,990
2009 Mercury Grand Marquis LS For Sale
3 Great Deals out of 78 listings starting at $2,900
2008 Mercury Grand Marquis LS For Sale
8 Great Deals out of 96 listings starting at $2,250

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.