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Car was ideling, radiator blew dumping coolant everywhere. Was able to let it cool down & fill radiator back up & drive, temp went up again, park car.

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Remove and test the thermostat, then test the radiator for blockages.

Posted on Aug 22, 2010

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Posted on Jan 02, 2017

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Why is my car overheating?


If nothing major like a head gasket,then you
know the fans fail to stay on,so there you go

Look at a schematic of the fan circuit & do some
testing, to find out why

You did not say if it is loosing coolant or water,
if so, you could have a bigger issue

Never use tap water,only distilled water from
super market & 50/50 or 60/40 with the mix

Nov 24, 2014 | 1992 Honda Accord

1 Answer

2002 ford escape temp guage says normal water will blow out of the degas bottle when engine reaches temp had to replace radiator trans cooler was leaking into radiator also replaced thermostat


Blown radiator hose? Might have blown a head gasket right there,which would continually send hot bubbles into the cooling system and degas bottle. If you see bubbles continually,it's a head gasket probably.
Might be the degas cap not releasing at 16 psi or your cooling system has air in it, OR your cooling fan is not actuating. Many things.
Also I have gotten 3 out of 5 bad thermostats from aftermarket stores. Get a Motorcraft thermostat. Did you replace with a NEW radiator?

May 11, 2017 | 2002 Ford Escape

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I have a 1995 pontiac grand am v6. I changed the thermostate and when i was finished i just ran the car with water as i was told by a mechanic that it was ok to run on water temp & there was a hose...


best case the hose blew out and you lost coolant causing it to over heat. and could be repaired with new hose. worst case when an engine with aluminum cylinder heads overheats it can cause the aluminum heads to warp and crack making cylinder head replacement necessary

Aug 03, 2012 | Pontiac Grand Am Cars & Trucks

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I Have a Mitsubishi nativa 2006 model last week i bought used one, yesterday night when i drive suddenly my car is full heat i stop my car and open the cover so i found there water is leakage over the...


I do not understand what your problem is so i will try to see if i can tell you what i think you are saying, the car is leaking coolant from the radiator, if this is correct then replace radiator. or is the coolant spilling out because engine temp is overheating , if the engine is overheating this will cause the ac system not to cool down and make the cold air hot due to the condensor not cooling,

The first step is to repair any leaks and also make sure the radiator fan turns on to cool engine, when you turn on the a/c the fansss will run, if they do not then have the fans checked.

Jun 13, 2012 | Cars & Trucks

1 Answer

I noticed two days ago that the a/c cooling system was not cooling as it should. Drove it for a short time yesterday - same experience. Today after driving about 10 minutes in stop and go traffic -...


Sounds as if the electric fan on the radiator isn't coming on. Most radiator shops also work with A/C systems and may be more qualified to do the work. However, any good "normal" repair shop should also be able to diagnose the problem. Try not to drive it very far and keep close watch on the engine temperature. An overheat can do extensive (expensive) engine damage. If you have a fill cap on the radiator, fill it there (when cooled down) filling the recovery bottle may not be sufficient to get coolant into the engine.

Feb 21, 2011 | 2002 Toyota Camry

1 Answer

Have a 1999 Subaru Legacy we have a problem, car is over heating, we get heat inside car then just like that it throws cold air this is all when driving it down the street. While sitting and ideling car...


Subarus can be challenging to "burp" Sometimes it takes several attempts to get the air out of the system. The procedure is simple. Top off the radiator, squeeze the hose a few times to help get the air out, replace the cap and start the car. let it idle or drive slowly near home with the heat on high. once the temp gauge begins to rise, if there is no heat get the car back to the driveway before the temp gauge gets half way. Shut the engine off wait for it to cool, at least 10 minutes. Then check the radiator again. If there is still air top off again and repeat. After 3 or 4 attempts if there is still air and or the coolant reservoir seems to be filling, try replacing the radiator cap. If this doesn't solve the problem, It may be a head gasket.

Feb 20, 2011 | 1999 Subaru Legacy

1 Answer

Issue with coolant system: Issue began after I had radiator shop in Sonora Ca. flush out system and replace thermostats as normal maint. and they put the t stats in wrong holes. I only noticed after they...


AFTER REPLACING THERMOSTAT DONT STOP OVERHEATING.CHECK THE COOLANT FAN CLUTCH.WITH HOT ENGINE THE CLUTCH FAN SHOULD HAVE RESISTANCE WHEN TURNING IT WITH HAND.IF NOT FREEWHEEL.FAULTY CLUTCH FAN.HAVE TO REPLACE CLUTCH ON FAN.BAD CLUTCH ON COOLING FAN WILL CAUSE ENGINE OVERHEAT.WHEN CLUTCH FAN FREEWHEELS AT HIGH SPEEDS NOT PULLING ENOUGH AIR THROUGH RADIATOR CORES TO COOL DOWN ANTIFREEZE AND ENGINE.

Feb 16, 2011 | 2004 Chevrolet Silverado 3500

2 Answers

Was driving my 1999 chevy venture this morning after 12 miles had no heat & temp gauge pegged in the red. then went down & came right back up. Stopped & turned it off for 20 minutes or so. ...


You are describing a slow coolant leak and the resultant no heat and blockoverheating symptoms. The no heat is because there is insufficient coolant to cycle through the heater core, and the chuggin you describe is the engine indicating serious overheating.
With engine cold, you must add water--not anti-freeze--to the radiator itself, until it reaches the top of the radiator, then start the engine. If you do not have a radiator cap in addition to the overflow bottle (some vehicles don't), you must still add water to the radiator, even if you have to bypass the overflow bottle hose to do it. Add water until no more will go into the radiator. Start engine, let idle until operating temperature is reached. Thermostat should open and a good bit of the water will "sink" into the depth of the radiator. If you have no radiator cap, observe the temperature guage. When it reaches normal operating temp, when the thermostat opens, the temp will drop briefly at first, and you will notice warm air from the heater/defroster.
Once engine is warm and known to be full of water, seal radiator cap and/or system, and let idle for 30 minutes. Use this time to locate the "mystery leak." They can be very hard to find, and some won't leak until after the engine is turned off. During this idle period, observe the vehicle exhaust from the tailpipe as well as looking for actual water leaks: sometimes a bad head gasket can be diagnosed this way; if the exhaust is white and thick like steam, and smells like anit-freeze, you have a more serious problem. It is possible that after the repeated overheating cycles you have endured you may now have both a "mystery leak" and a blown head gasket.
Once leak is located, your next step is to let engine cool completely, drain the water, fix the leak, and then and only then add new antifreeze of the proper rating and ratio recommended by Chevy for your vehicle.
Anytime you drain a cooling system and refill it, it is necessary to check the overflow bottle at least 3 times in the first week after repair to ensure that you have the proper coolant level, and have not either missed another leak or not correctly repaired one. You MUST check it before you drive the vehicle the second time after the first repair attempt because it is normal to need to add more coolant than you added initially after the repair because of air trapped in the cooling system that will only be expelled after the first start/stop heating cycle. If after 1 week of daily normal driving you have only added a little more coolant once, and there are no more problems, you can be very comfortable that you have fixed your car.

Jan 16, 2011 | 1999 Chevrolet Venture

1 Answer

Car over heated


NO ADD MORE COOLANT.THAT WHY CAR OVER HEATED.LOW COOLANT.ADD MORE COOLANT.CHECK FOR LEAKING RADIATOR HOSES AND CHECK AROUND THE RADIATOR FOR LEAKS LIKE LOOK DOWN BETWEEN RADIATOR AND COOLANT FANS FOR LEAKS.AND LOOK ON BOTH SIDES OF RADIATOR FOR LEAKS.

May 01, 2010 | 2004 Pontiac Grand Prix

1 Answer

Coolant issue


broken fan belt water pump dont turn water dont circulate its gonna overheat alternator dont turn battery light stay on you said the bottle was full and when it cool down it was on low level that normal radiator took back what it was missing check the belt HOPE IT HELP FIXYA OUR POST THANKS PIERRE

Jul 11, 2008 | 2002 Mazda Protege

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