Question about Mercury Villager

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Overheating 95 Merv Villager. had to replace radiator, and has been overheating since. I bled the air out of cooling system, and the heater blew hot air again. overheating continued, esp at freeway speeds. Next I replaced the Thermostat, refilled system and bled air again. Heater blew hot air, though still overheating. Now heater is blowing cold again. not sure what else it could be.

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  • Michael Trew
    Michael Trew Mar 29, 2014

    is there any way to know the water pump is bad?

  • cwradio73 Mar 29, 2014

    if it is you will hear a sound like ball bearings slinging around in a bowl. it makes a noies and it is noticeable. go to youtube and do a search i know one of the good mechanics has a video on it

  • Michael Trew
    Michael Trew Mar 30, 2014

    I don't hear any sort of water pump sounds. My heat keeps coming in and out, and my gauge is hanging out right at the top of normal

  • cwradio73 Mar 30, 2014

    I have only 2 other thoughts either the water pump is frozen or you have a head gasket problem. Just not sure.



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About the only thing left is the water pump.

Posted on Mar 29, 2014


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Posted on Jan 02, 2017

  • 651 Answers

SOURCE: heater blowing cold air

squeeze the hoses to get any air bubbles out and refill coolant as necesary. are you sure you put thermostat in the right way? may be backwards. also may be your sensor.

Posted on Jan 04, 2009

  • 1779 Answers

SOURCE: '90 Subaru Legacy overheating....

cool air and overheating point to low coolant level. Do you have a bleeder valve near the thermostat? You may have air trapped in the system. If no air trapped, the radiator may be plugged up not allowing proper circulation of coolant.

Posted on Mar 24, 2009

  • 19 Answers

SOURCE: running hot 1996 cavalier

please try a simple test for me. no.1: remove the radiator cap off the radiator. no.2: if you could see the see the radiator opening from within you car much better, then try to crank your car to an idle. if coolant blows out of the mouth of the radiator like an erupting volacano, then take note of this. no.3: while the engine is running at idle try to look at the coolant through the mouth of the radiator, if you see bubbles like washing your hands with soap and the suds trailing to a drain, then take note of this.

the reason why i'm telling you all of this is that, the coolant should flow like a clear stream. you don't have to worry about purging the system of air because, the water pump is already situated a few inches below the highest water capacity of the radiator. it means that if you drained your system and refiled the radiator to the brim, just start your engine and add a few more coolant to fill it up because the running engine simply purges the waterpump of air.

now, if you tried no.2, and you did see and somewhat like an errupting volcano, that means your engine is in serious trouble, so is no.3. however, a tolerable bubble flow is still possible but your valve clearances should be tuned if this happens. excessive bubbles accompanied by blow out of coolant means your combustion gases are seeping through the head gasket due to a damaged head gasket, warped cyclinder head, cracked cylinder head, or even a cracked cyclinder liner(or bore where the piston glides up and down). think back! did you ever experienced overheating you car to a point where it stalled completely? then, you need a thourough engine checkup.

Posted on Apr 15, 2009

  • 1 Answer

SOURCE: My 97 BMW Z3 keeps overheating

I too had similar problem when replacing the thermostat on my Z3. My advice is top up with more coolant and check the level.

Posted on Jan 06, 2010

  • 119 Answers

SOURCE: 1994 Dodge Spirit heater blowing cold but radiator is overheating

1st you need to make sure no air in your system open you radaiator cap and your heater to max and see if air bubles or circulation is going on fill up accordingly otherwise you have blockage in your system or water pump if no circulation ////make sure no bubles all bubles should be gone////look for coolant circulation in your radiator make sure your thermostat is not defective or placed in the right position.

Posted on Jan 14, 2010

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suspect a blown hose, heater hose probably behind the engine. now when you fill it back up you have to bleed the air out of the system and the bleeder valve is usually a brass screw close to the area of the thermostat... find the leak first and foremost or catastrophic engine damage can and will occur

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How do you bleed the radiator? on a 1999 merc villager

With all cars the radiator has to be bled.
In most cases it just involves filling the reservoir and radiator, and squeezing the hoses until all the air bubbles out that you can get, and then cycling the car by running it until hot, shutting it off and letting it cool, and repeating that a few times.
Each time it gets hot it will burp out some air and replace it with water from the reservoir.

But some cars trap too much air, so also have a valve on the engine that can be opened up. Cars with the engine far from the radiator even require having the car tilted on a lift, towards the filler. Adding a water hose connection T fitting to the heater hose is also always a good idea. Not only is it good for back flushing, but for bleeding as well.

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1 Answer

My vans themostat shows it is overheating in very hot weather, >95 degrees going up a grade or > than 100 degrees. If I turn off the air the thermostat returns to normal. I have had this checked out...

Your van is 11 years old and it is time for a cooling system service. Drain the radiator and flush the cooling system. Replace the thermostat in the engine and fill the radiator with a 50/50 mix of antifreeze and distilled water. Make sure to clean the front cooling coils of the radiator and remove all bugs and debris. Make sure the cooling fans are running as they should. Anytime the A/C is on the fan should run continuously. Caution: If you have been loosing coolant with no apparent leak then you may have a blown head gasket. You might also see white smoke from the exhaust if the gasket is blown. This requires the heads be removed and new gaskets installed.

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2 Answers

I have a 2001 mercury villager that overheats. I replaced the fan assembly and the thermostat. The radiator is fine. What else could be causing the van to overheat?

You have air trapped in the system. If you have cold air, warm air, cold air from your heater, then it's air entrapment. Very common these days. Go to a shop that uses vacuum method to refill cooling system & that will purge air.
Otherwise, you can try. Park uphill. cold engine - fill radiator to top with 50/50 mix of antifreeze. leave cap on but loose. fill reservior to 3/4 full. Turn heater to hot to allow coolant to flow through heater core. start engine, run at 1500 rpms until thermostat opens and upper hose is hot. tighten cap and let it cool down. after cool check level of reservoir. fill to top line on reservoir. it should **** coolant back into radiator as it cools down.
repeat if still an issue.

go to yahoo group for villager quest & join owner group for much more help. 2500 members.

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you have air trapped in the system.
Park facing uphill (on car ramps if you have them).
with cold engine, remove radaitor cap and fill radiator.
Fill reservoir.
leave cap on loose.
Turn on heater.
start engine and run until upper radiator hose gets hot (meaning thermostat has opened).
Check coolant level and top off. Repeat until temp gauage reads normal and heat is coming from heater ducts.

go here for villager/quest help.

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'90 Subaru Legacy overheating....

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