misfire on slow accel on 5.0 liter eng on 91 merc grand marquis

Asked by cjblock5649 Nov 17, 2016 at 11:41 AM about the 1991 Mercury Grand Marquis LS Sedan RWD

Question type: Maintenance & Repair

misfire bad shudder on 5.o liter on my merc grand marq on slow accel but no bother if I shove the pedal down no shudder.. put on plugs wires coil ignition module, what else canit be tranny expert said nothing wrong with tranny. misfire somewhere, but where tried injector cleaner not drove it yet far though.

1 Answer

5,295

Either clean the MAF sensor by the air filter, (with maf cleaner), or get a rebuilt one. This fooled me a long time until I learned about it the hard way. If that doesn't do it, do a scan and see if there are any fault codes, and google them.

1 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Tracy Hooks
    Reputation
    9,670
  • #2
    Trippmeister
    Reputation
    5,040
  • #3
    Bob Beaman
    Reputation
    3,740
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lincoln Town Car
4 listings starting at $9,995
Used Ford Crown Victoria
2 listings starting at $8,960
Used Ford F-150
363 Great Deals out of 12,802 listings starting at $599
Used Ford Mustang
61 Great Deals out of 1,603 listings starting at $6,500
Used Toyota Camry
44 Great Deals out of 1,140 listings starting at $3,900
Used Buick LeSabre
1 listing
Used Lincoln Continental
9 listings starting at $26,999
Used Ford Explorer
53 Great Deals out of 2,231 listings starting at $7,990

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. Content will be removed if CarGurus becomes aware that it violates our policies.