Question about 2000 Ford Taurus

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My Ford Taurus keeps overheating when sitting at lights or just standing. Also the pressure builds up in the radiator overflow tank and is not expelled so a knocking sound starts in or near the overflow tank. Possibly be Thermostat?? or mayb one of the hoses is blocked or restricted? Appreciate any help

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I would check operation of cooling fans first and the possibility of air in the cooling system .

Posted on Jan 11, 2018

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Sounds like the cooling fan is not running






to push cool air through radiator fins . Alternatively the core has become blocked not allowing coolant to pass through.

Another possibility is a faulty water pump. Check for coolant circulation

Posted on Jan 11, 2018

  • John Danckwerts Jan 11, 2018

    Sounds like the cooling fan is not running






    to push cool air through radiator fins . Alternatively the core has become blocked not allowing coolant to pass through.

    Another possibility is a faulty water pump. Check for coolant circulation

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It could be a few things. When it is warm put your hand in the center of the radiator if it is warm good if it is cold the radiator is plugged.
It could be the thermostat which is the cheapest or the big problem it could also be head gaskets.

Posted on Jan 10, 2018

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Posted on Jan 02, 2017

dennymulford
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SOURCE: 1996 ford thunderbird 4.6 overheating

blown head gasket or obtruction in water jacket

Posted on Apr 08, 2009

michael_grey
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SOURCE: 2004 ford taurus. Its not overheating but there

Did you recently have a transmission fixed?
If so it sound like the drive plate bolts were not applied with Loctite.
Maybe a oil viscosity problem if not a transmission job.

Posted on Jun 16, 2009

gypsycat00
  • 224 Answers

SOURCE: my car keeps overheating while it is idling.

If it's only happening while sitting at a stop light and idling, the problem is probably in the cooling fans. Turn your A/C on high and pop the hood. Check your cooling fans to see if they're running. If they aren't running, it's the fan relay. In my 99 Taurus, the high speed fan relay is located in a slim black box next to the battery, it's the large square relay right up front. Use a known working relay of the same size and pop it into this relay. If the fans turn on, there's your problem. Replace the relay. Try the same with the A/C on low, but this relay is in the power distribution box (number 31). The 2002 may have a CCRM (Constant Control Relay Module). The CCRM is an expensive part (over $100.00). You'll be able to tell because the CCRM is a very large box that is mounted next to the battery and contains relays that are not replacable. It'll have a part number followed by a large letter/number. You'll need this part number and large letter/number to order the new.

Posted on Jul 07, 2009

  • 95 Answers

SOURCE: Radiator blockage?

I believe you have a head gasket blown or a cracked head. When you start it up COLD with the cap off, it would push water out immediately. Fill it with plain water and try this. It might not be a bad idea to perform a pressure test too. Also check for antifreeze in the oil. It will get milky looking and might even be over full. If this happens after warm-up, you may just have a plugged radiator. Have it professionally cleaned. The water pump vanes could also possibly be corroded off and it's not effectively displacing coolant. Hope this helps.

Posted on Aug 16, 2009

  • 370 Answers

SOURCE: 2000 ford taurus overheating i believe from

well if you pull the thermostat and it has a guewy residue on it you need to flush the cooland system but most of the time if your engine is overheating its 1 of 2 things... the water pump is shot or the thermostat is sticking closed. that is where i would start though the thermostat is the cheaper of the 2 and easer to get at
good luck

Posted on Aug 23, 2009

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There are 2 tanks on a radiator. One on top and one at the bottom. They are what seal the top and bottom of the radiator core. You will also find an overflow tank connected by a small hose near the radiator cap that connects to the overflow tank. The overflow tank is where you top up the coolant. One some coolant system, the overflow tank is pressurised and the "radiator" pressure cap is on the overflow tank, on others the radiator pressure cap is on the radiator and the overflow tank is unpressurised.

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IT KEEPS OVERHEATING


REPLACE THE THERMOSTAT AND RADIATOR PRESSURE CAP.IF COOLANT LOW, ADD MORE COOLANT THROUGH COOLANT OVERFLOW UNTIL COOLANT LEVEL IN THE COOLANT OVERFLOW STAY AT FULL COLD MARK.REASON POUR COOLANT THROUGH COOLANT OVERFLOW MOST GM CARS DONT HAVE RADIATOR CAP.WHEN YOU GET COOLANT LEVEL OKAY, CRANK CAR LET IT IDLE UNTIL ENGINE GET HOT BUILD UP PRESSURE THEN TURN OFF CAR.CHECK FOR COOLANTS LEAKS AT THE RADIATOR HOSES,CHECK FOR LEAKS AT THE RADIATOR, CHECK FOR LEAKS AT WATER PUMP WEEP HOLE IF YOU SEE COOLANT LEAKING FROM WEEP HOLE REPLACE WATER PUMP. IF CAR OVERHEATING WHILE IDLING YOUR COOLING FANS NOT WORKING CHECK COOLING FANS FUSE AND RELAYS.IF FUSE AND RELAYS OKAY THE ENGINECOOLANT TEMPERATURE SENSOR BAD.

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The car keeps overheathing then cooling off then overheating and cooling off. so on and so forth the fan works the radiator is good


Try changing out the overflow cap. Over time the seal in these caps no longer hold pressure and cause the cooling system not to be pressurized thus causing overheating and loss of coolant.

May 29, 2011 | 1995 Ford Taurus

1 Answer

1993 ford taurus overheated and water start coming out of the overflow tank. What could that be from?


if its real hot, it will. After it cools off and you refill the tank and put the cap on, crank it up if it pushes water out right after you start the engine you may have head gasket damage. make sure the coolant level is full and no leaks, make sure radiator fan runs when the a/c is on.

Sep 05, 2010 | 1993 Ford Taurus

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2002 ford taurus. Radiator overflows but, temp gauge not hot.


It could be both your thermostat and water pump, it could also be an air lock in your cooling system. One way or another, I think pressure is building up in part of the system because its not circulating properly.

When its cool, take the top off your reservoir, give the bottom hose to your radiator a good few squeezes, see if the water goes down a little, if it does, you moved something on and probably cured it.

If not, run the engine up, to get it warm and bleed off any air in the system. (Assuming there are bleed taps in the system)

If that also does nothing, I reckon its your water pump. And if your changing that, I'd suggest changing the thermostat at the same time.

Jul 19, 2010 | 2002 Ford Taurus

1 Answer

System builds up pressure enough to overflow the overflow tank. The top radiator hose is rock hard at the time. it does have a rear heating unit.


if ti bubbles from the radiator when the cap is off it may well have a bad head gasket,to be sure you will have to find someone with a pressure guage that goes on the radiator and pump it up and see if it holds pressure..

Oct 31, 2009 | 2001 Ford Expedition

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Water backs up in overflow tank and actually runs


yeah most likely a blown head gasket. if it blew across to a cylinder then compression will build pressure in the cooling jackets of the head and into the cooling system

Oct 24, 2009 | 1995 Ford Taurus

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Why is my 1998 hyundai accent overheating?


The head gasket has gone so pressure builds up in the cooling system and forces water out of the overflow

You need someone to take the head off , skim it and fit a new gasket

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Radiator reservoir overflows


3.0? you most likely overheated the engine, warping the heads.
Having the head gaskets replaced may fix this.
Get it looked over.

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