How do you bleed the coolant system of a 2005 Mercury Mountaineer. It has an expansion tank, no radiator cap

Asked by Jan 14, 2015 at 10:56 PM about the 2005 Mercury Mountaineer 4 Dr STD SUV

Question type: General

Heat comes our of vents when car is in motion.  When just idling air is cold.

4 Answers

12,050

open the coolant bottle when the engine is cool. start the car and turn the heater on high. once it is up to operating temp, make sure the bottle is filled to the "full hot" line. GENTLY squeeze the upper radiator hose, this will help purge the air out. if there is air, the bottle should go down a bit and or bubble up some. do this a few times until it stays full. you should be good to go. P.S if there is a bleeder valve on the housing near the thermostat, you can loosen it carefully while everything is running, this will help get air out. not all vehicles have them though. good luck.

2 of 2 people found this helpful.
Best Answer Mark helpful
30

Hi, I am driving a Mercury Mountaineer-2005-V6-4.0 Ltrs and I am having the same problem... coolant level drops... no leak... would briefly see check gauge.. temperature goes very high... I stop and by the time I pull over, temperature is back to normal.... water overflows from the tank.... this happened like 4 times... What I have done so far is replacing the tank's cap.... replaced thermostat... flushed the coolant system... filled 50/50 antifreeze coolant/distilled water.... removed air (or I guess so) by running the heater and watching air bubbles flow out of the tank... What I'm suffering now is that coolant level goes down around half a liter everyday... I commute to work 110KM each way daily... I reach home... let the car cool down till next day... check water level... down a little, around half a liter as mentioned above and the big note is that I always find coolant tank is under a lot of pressure during removing the cap... I am trying to see whether I had air in the system and will ultimately burb completely and water level stabilizes... HELP please

3 of 3 people found this helpful.

i tried squeezing the hose and nothing happen the fluid is still at the full mark no bubbles and still no heat could it be the thermostat

12,050

If you are losing coolant and there is no apparent leak, you could have a bad head gasket. There is a test called a combustion leak test that would help determine this. The kit is about 50 bucks at an auto parts store. The other alternative is to have a shop that does emissions testing "sniff" your exhaust. Either of these tests will tell you if there is coolant getting into your combustion chambers. As far as the pressure in the tank, some vehicles have a pressurized system. Usually there is not a cap on the radiator, it is on the overflow tank.

Your Answer

Mountaineer

Looking for a Used Mountaineer in your area?

CarGurus has 1,157 nationwide Mountaineer listings starting at $1,900.

ZIP:

Mercury Mountaineer Experts

  • #1
    Tom Demyan
    Reputation
    580
  • #2
    kbro
    Reputation
    460
  • #3
    tuff4x4
    Reputation
    300
View All

Related Models For Sale

Used Ford Explorer
892 Great Deals out of 67,382 listings starting at $1,800
Used Mercury Mariner
52 Great Deals out of 1,193 listings starting at $1,250
Used Ford Escape
1,034 Great Deals out of 93,152 listings starting at $1,200
Used Ford Expedition
345 Great Deals out of 18,197 listings starting at $1,989
Used Jeep Grand Cherokee
844 Great Deals out of 69,994 listings starting at $700
Used Ford F-150
2,519 Great Deals out of 193,861 listings starting at $799
Used Chevrolet Tahoe
705 Great Deals out of 41,339 listings starting at $1,995
Used Chevrolet Equinox
995 Great Deals out of 61,143 listings starting at $999
Used Lincoln Navigator
76 Great Deals out of 4,182 listings starting at $1,900
Used Jeep Liberty
230 Great Deals out of 7,183 listings starting at $1,500
Used Dodge Durango
250 Great Deals out of 22,394 listings starting at $895
Used Nissan Pathfinder
373 Great Deals out of 26,391 listings starting at $1,050
Used Honda Pilot
508 Great Deals out of 34,847 listings starting at $500
Used Nissan Murano
354 Great Deals out of 24,886 listings starting at $999

Used Cars For Sale

2010 Mercury Mountaineer For Sale
3 Great Deals out of 72 listings starting at $5,495
2009 Mercury Mountaineer For Sale
3 Great Deals out of 26 listings starting at $6,499
2008 Mercury Mountaineer For Sale
5 Great Deals out of 144 listings starting at $2,700
2007 Mercury Mountaineer For Sale
7 Great Deals out of 153 listings starting at $2,799
2006 Mercury Mountaineer For Sale
5 Great Deals out of 178 listings starting at $1,900

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.