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

10,610

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 out of 2 people think this is helpful.
Best Answer
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 out of 3 people think this is 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

10,610

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

Add photo

Related Questions

Mountaineer

Looking for a Used Mountaineer in your area?

CarGurus has 1,477 nationwide Mountaineer listings starting at $150.

ZIP:

Search Mercury Mountaineer Questions

Mercury Mountaineer Experts

#1 Tom Demyan
Tom Demyan
Reputation 520
#2 kbro
kbro
Reputation 460
#3 FordNut
FordNut
Reputation 310
View All

Related Models For Sale

Used Ford Explorer
939 Great Deals out of 73,806 listings starting at $750
Used Ford Expedition
420 Great Deals out of 24,712 listings starting at $1,999
Used Mercury Mariner
41 Great Deals out of 1,502 listings starting at $800
Used Lincoln Navigator
118 Great Deals out of 5,617 listings starting at $1,299
Used Jeep Grand Cherokee
846 Great Deals out of 68,675 listings starting at $864
Used Chevrolet Tahoe
778 Great Deals out of 28,448 listings starting at $1,500
Used Ford Escape
1,119 Great Deals out of 90,571 listings starting at $1,295
Used Dodge Durango
301 Great Deals out of 24,111 listings starting at $1,500
Used Ford F-150
2,702 Great Deals out of 211,804 listings starting at $1,000
Used Lincoln Aviator
4 Great Deals out of 282 listings starting at $2,500
Used GMC Envoy
51 Great Deals out of 2,391 listings starting at $1,800
Used GMC Yukon
520 Great Deals out of 17,125 listings starting at $1,799
Used Honda Odyssey
351 Great Deals out of 27,970 listings starting at $2,295
Used Cadillac Escalade
308 Great Deals out of 10,692 listings starting at $1,900
Used Nissan Pathfinder
410 Great Deals out of 24,820 listings starting at $999

Used Cars For Sale

2010 Mercury Mountaineer For Sale
5 Great Deals out of 91 listings starting at $7,995
2009 Mercury Mountaineer For Sale
28 listings starting at $5,990
2008 Mercury Mountaineer For Sale
3 Great Deals out of 142 listings starting at $4,495
2007 Mercury Mountaineer For Sale
5 Great Deals out of 179 listings starting at $4,599
2006 Mercury Mountaineer For Sale
7 Great Deals out of 219 listings starting at $1,974