2010 Grand Marquis pressure release from driver side of engine sound like air tank relief on diesel truck. Slight amount of antifreeze shows up on crossmember. Slight amount of vapor when spewing sound occurs. Engine heat normal.

Asked by Smittystallings Dec 07, 2019 at 07:22 PM about the 2010 Mercury Grand Marquis LS

Question type: Maintenance & Repair

2010 Grand Marquis pressure release from driver side of engine sound like air
tank relief on diesel truck. Slight amount of antifreeze shows up on
crossmember. Slight amount of vapor when spewing sound occurs. Engine
heat normal.

1 Answer

3,065

This sounds bad, either a blown head gasket, or cracked head. Check for water suds on inside of oil cap. You could have the cooling system pressure checked.

Your Answer:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    7,610
  • #2
    Js08016
    Reputation
    3,010
  • #3
    Trippmeister
    Reputation
    2,880
View All

Find great deals from top-rated dealersTM

Search

Related Models For Sale

Used Lincoln Town Car
15 Great Deals out of 1,020 listings starting at $900
Used Ford Crown Victoria
3 Great Deals out of 571 listings starting at $1,439
Used Chevrolet Impala
512 Great Deals out of 20,464 listings starting at $995
Used Ford F-150
4,183 Great Deals out of 248,013 listings starting at $499
Used Chrysler 300
357 Great Deals out of 14,529 listings starting at $1,400
Used Ford Mustang
638 Great Deals out of 39,040 listings starting at $999
Used Toyota Camry
1,134 Great Deals out of 73,638 listings starting at $999
Used Dodge Charger
640 Great Deals out of 25,724 listings starting at $1,588
Used Honda Accord
971 Great Deals out of 61,843 listings starting at $1,200
Used Cadillac DTS
19 Great Deals out of 1,001 listings starting at $1,990
Used Chevrolet Tahoe
847 Great Deals out of 29,417 listings starting at $1,000
Used Ford Taurus
263 Great Deals out of 7,617 listings starting at $2,387
Used Chevrolet Silverado 1500
3,833 Great Deals out of 155,496 listings starting at $1,500

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
3 Great Deals out of 45 listings starting at $3,460
2009 Mercury Grand Marquis LS For Sale
44 listings starting at $2,100
2008 Mercury Grand Marquis LS For Sale
4 Great Deals out of 57 listings starting at $1,999

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.