Pressure

40

Asked by Apr 04, 2017 at 10:54 PM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

My cooling system has a lot of pressure in
it after sitting all night what could cause
this

4 Answers

120,085

Maybe the radiator cap is faulty.

40

I have a reservoir with a pressurized cap. I just got done replacing everything for the cooling system

40

Ok I will have it tested then thanks for the advice

120,085

The only way a cooling system will be under pressure when the engine is cool is a faulty cap. Maybe you have the wrong type cap or a head gasket leak.

1 people found this helpful.

Your Answer:

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 7 nationwide Grand Marquis listings and the tools to find you a great deal.

Postal Code:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    6,100
  • #2
    kbro
    Reputation
    2,260
  • #3
    Js08016
    Reputation
    2,180
View All

Related Models For Sale

Used Lincoln Town Car
11 listings starting at $6,495
Used Chevrolet Impala
21 Great Deals out of 879 listings starting at $2,894
Used Ford Mustang
36 Great Deals out of 1,236 listings starting at $3,995
Used Honda Accord
34 Great Deals out of 1,650 listings starting at $3,490
Used Ford Taurus
15 Great Deals out of 368 listings starting at $3,900
Used Ford F-150
133 Great Deals out of 11,522 listings starting at $3,900
Used Toyota Camry
27 Great Deals out of 2,106 listings starting at $2,450
Used Chevrolet Tahoe
10 Great Deals out of 792 listings starting at $5,900
Used Chevrolet Silverado 1500
99 Great Deals out of 11,091 listings starting at $4,950

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.