Question about 1998 Ford Contour

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My engine runs hot even though i changed the thermostat and coolant

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  • Ford Master
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The problem can be in the Electric cooling fan. Some models have 2 speeds and if the Relays are bad it will not switch speeds. Check with Autozone or Oreillys for the part and location.

Also check your Radiator hoses for collapse at higher speeds. You may need an assistant to rev the engine while you look at the hoses.

Posted on Sep 27, 2010

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I have a 2005 Buick rendezvous that has had a radiator cap and radiator water pump intake gasket flushed radiator why is it still running hot


Being it appears from your post the intake gasket was changed (I'm hoping it was the lower intake gasket) then I would suspect the thermostat.

IF the thermostat was changed then another, and pretty common cause can be an 'air lock' in the cooling system.

There should be 2 bleeder valves or screws located on the engine.
One should be on the thermostat housing and the other should be located above the water pump.

There are a couple of different methods of bleeding the air from the system. One is to do it while the engine isn't running, the other is while the engine is running and starting to get warm.

Both methods can work and I've used both.

The method with the engine not running I usually use while I'm refilling the cooling system after I've made repairs.

The method with the engine running is the one I've used if there have been previous repairs done but the engine still overheats or the heater/defroster doesn't put out any heat, even though the temperature gauge says the engine is warm or getting hot.

IF THE ENGINE RUNNING METHOD IS USED CAUTION IS THE WORD OF THE DAY AS THE STEAM AND COOLANT COMING FROM THE BLEEDER(S) CAN BURN YOU!!

Hopefully this video will show you where the bleeders are located.
Hope this helps.

Jan 28, 2016 | Buick Cars & Trucks

2 Answers

Tempurture gauge goes from normal to hot then back to normal replace thermostat already and still doing the same thing


-You could have an air pocket trapped in the engine. Look for an air bleed valve on or around the thermostat housing. Crack it open with engine running until only coolant, no air, is expelled. If none, take off the radiator cap (not while engine is hot, though) and run the engine until the thermostat opens and hot coolant begins circulating through the radiator. Shut off engine and put the cap back on. That should expel any air that was trapped. If it continues going hot and normal on the gauge, try replacing the temp sender unit. Also make sure coolant system is full, that includes the overflow tank.

Jun 29, 2015 | Cars & Trucks

1 Answer

Beetle thermostat


Just a couple things to mention here
  1. Is the thermostat in correctly? Don't take this wrong, but I've seen people put them in backwards, so just make sure the copper pellet is on the engine side
  2. Is there air trapped behind the thermostat? If hot coolant cannot get to the copper pellet, the thermostat will not open even though the engine gets hot. Ensure the engine coolant has had the air bled from the system.
  3. Is the water pump spinning? In the right direction? In other words, check the belt routing
Hope this helps

Dec 05, 2013 | Cars & Trucks

1 Answer

Noticed temp gauge running a little higher than normal.cooling fans turn on and off very quickly. turned on ac and the fans run. trying to diagnose without getting taken to the cleaners from the...


Check your coolant levels. If the temperature isn't much higher than normal, you may be fine, or you may have a Coolant Temperature Sensor going bad, and reporting the incorrect temperature. Even though the thermostat was replaced 8 months ago, it is possible it is already going bad again. I believe this is more of a Coolant Temp. Sensor fault though. The cooling fans are On when the AC is on. With the AC off, the cooling fans come on when the engine reaches a certain temperature, and cut off once the temperature is back in range. The Coolant Temperature sensor shouldn't cost much, and is easy to replace. I would start with that, top it off with coolant, and then maybe change the thermostat.

Mar 14, 2011 | Chevrolet Impala Cars & Trucks

1 Answer

Tempeture guage not working and heater is blowing out very little hot air on my ford galaxy


you need to get the thermostat changed. The thermostat controls how much coolant runs around the engine and sends signals to your temp gauge to indicate how hot the engine is.
if the thermostat is faulty it wont sent signals to the temp gauge and wont open up to allow coolant to run around the system. Your heating is run by coolant, behind the dash there is the heater matrix hot coolant runs into the matrix which gets blown inside the cab.
Fitting a new thermostat will fix all the heating and gauge problems. if your technical minded you can buy a thermostat from an autofactor (or ford, but they are expensive from ford). a garage will charge about £30-£100 ish for a new one.

hope this helps :-)

Feb 10, 2010 | 2001 Ford Excursion

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I have changed the radiator and thermostat and water pump and it keeps running hot


THEN U MOST LIKELY HAVE A LEAKING HEAD GASKET, VERY COMMON PROBLEM ON THIS V8 NORTHSTAR ENGINE.

Nov 12, 2009 | 1998 Cadillac DeVille

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Radiator fan running after engine turned off on 98 nissan altima


You need to diagnose the problem. The fan is doing what it is being told to do by the computer. You stated the temp gage on the dash is in the HOT position. Either the engine is very hot and the fan needs to run to remove heat even after it is shut off or the gage, coolant sensor or temp sender is defective. Try running it temporarly without a thermostat and see what happens, you may have bought a defective thermostat.

Oct 06, 2009 | 1998 Nissan Altima

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Dash says engine coolant hot


Did you change you ECT (ENGINE COOLANT TEMPERATURE SCENSOR) ?

May 29, 2009 | 1994 Cadillac DeVille

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2000 Ford Expedition Overheating


this may be a cluster,wiring or sending unit problem.ask your dealer how hot the engine was getting,with a scanner they can tell what temp the coolant is at.yes your temp gague is rising but is the engine even overheating ?

Nov 05, 2008 | 1999 Ford Expedition

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