2000 grand marqui runs good cold /rough after warms up

Asked by Jul 01, 2014 at 08:45 PM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

my car runs rough and acts like its missing it wont do over 30mph or climb a hill,i replaced spark plugs mass air sensor fuel filter and 4 o2 sensors.my car only has 56000 miles on it and im the second owner ,the codes still say running lean bank1 sensor2,bank2 sensor2 this is my only way to get around and I live in bfe......someone plz help

2 Answers

23,135

Likely it's the MAF but without watching the actual readings coming from the engine sensors, it's only a guess. There's more to it than just reading codes.

1 out of 1 people think this is helpful.

ty tracy like I said it has a new maf I am trying to find someone with a cpu ,its just odd it runs great cold after an hour or so it starts running ruff im also going to check the fuel pressure

Your Answer

Add photo

Related Questions

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,200
#2 kbro
kbro
Reputation 2,040
#3 Js08016
Js08016
Reputation 1,620
View All

Related Models For Sale

Used Ford Crown Victoria
10 Great Deals out of 1,217 listings starting at $1,700
Used Lincoln Town Car
29 Great Deals out of 2,074 listings starting at $1,995
Used Chevrolet Impala
792 Great Deals out of 34,371 listings starting at $799
Used Honda Accord
814 Great Deals out of 81,559 listings starting at $899
Used Chevrolet Tahoe
775 Great Deals out of 28,432 listings starting at $1,500
Used Ford Taurus
255 Great Deals out of 20,458 listings starting at $1,500
Used Ford F-150
2,691 Great Deals out of 211,555 listings starting at $1,000
Used Cadillac DeVille
6 Great Deals out of 1,955 listings starting at $1,750
Used Ford Mustang
363 Great Deals out of 44,352 listings starting at $1,000
Used Lincoln Continental
3,715 listings starting at $42,294
Used Toyota Camry
1,095 Great Deals out of 96,233 listings starting at $1,250

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
5 Great Deals out of 112 listings starting at $2,999
2009 Mercury Grand Marquis LS For Sale
3 Great Deals out of 96 listings starting at $2,998
2008 Mercury Grand Marquis LS For Sale
7 Great Deals out of 115 listings starting at $2,995