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

21,845

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 4,900
#2 kbro
kbro
Reputation 1,970
#3 Js08016
Js08016
Reputation 1,490
View All

Related Models For Sale

Used Ford Crown Victoria
8 Great Deals out of 1,496 listings starting at $2,900
Used Lincoln Town Car
49 Great Deals out of 2,156 listings starting at $1,999
Used Chevrolet Impala
999 Great Deals out of 36,595 listings starting at $1,800
Used Ford F-150
3,446 Great Deals out of 206,231 listings starting at $1,273
Used Cadillac DeVille
1,957 listings starting at $1,600
Used Ford Mustang
716 Great Deals out of 38,848 listings starting at $1,999
Used Chevrolet Tahoe
1,098 Great Deals out of 31,959 listings starting at $1,495
Used Ford Taurus
358 Great Deals out of 22,551 listings starting at $1,499
Used Buick LeSabre
8 Great Deals out of 2,363 listings starting at $1,768
Used Chevrolet Silverado 1500
2,703 Great Deals out of 148,972 listings starting at $995

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
98 listings starting at $2,999
2009 Mercury Grand Marquis LS For Sale
8 Great Deals out of 106 listings starting at $3,495
2008 Mercury Grand Marquis LS For Sale
5 Great Deals out of 129 listings starting at $2,900