About once a week my car will sputter & die when I let off the gas & sometimes while still pressing gas & sometimes the idle fluctuates. We replace idle position sensor & still acts up

Asked by Jul 10, 2014 at 05:47 PM about the 1987 Mercury Grand Marquis

Question type: Maintenance & Repair

4 Answers

1,435

Clean your MAP sensor with maf cleaner. Possibly replace the IAC (idle air controll) valve. Any scan codes?

Don't know where those r located and no scan codes

1,435

Google them. the MAF sensor is on the Air cleaner top, you may need a tamper-proof driver to undo the screws. MAF cleaner is at any auto parts store, it's amazing what that can do sometimes, I had a similar prob. once. The IAC is on the intake manifold somewhere, you may find it on google or utube.

Thank you will give it a try

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,735 nationwide Grand Marquis listings starting at $1,000.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,780
  • #2
    kbro
    Reputation
    2,150
  • #3
    Js08016
    Reputation
    1,880
View All

Related Models For Sale

Used Lincoln Town Car
50 Great Deals out of 1,765 listings starting at $1,000
Used Ford Crown Victoria
4 Great Deals out of 1,191 listings starting at $1,496
Used Dodge Charger
427 Great Deals out of 28,515 listings starting at $2,490
Used Ford F-150
2,608 Great Deals out of 198,106 listings starting at $1,300
Used Ford Mustang
595 Great Deals out of 36,397 listings starting at $1,200
Used Cadillac DeVille
1,562 listings starting at $2,995
Used Lincoln Continental
17 Great Deals out of 3,880 listings starting at $35,890
Used Chevrolet Caprice
201 listings starting at $9,995
Used Ford Taurus
193 Great Deals out of 15,921 listings starting at $1,850
Used Buick LeSabre
17 Great Deals out of 1,766 listings starting at $1,000

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
23 listings starting at $5,450
2010 Mercury Grand Marquis For Sale
4 Great Deals out of 93 listings starting at $4,795
2009 Mercury Grand Marquis For Sale
7 Great Deals out of 88 listings starting at $2,599
2008 Mercury Grand Marquis For Sale
8 Great Deals out of 152 listings starting at $2,790
2007 Mercury Grand Marquis For Sale
8 Great Deals out of 130 listings starting at $1,995

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.