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Car overheating what does a bad thermostat looks like

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When you take the old one out it may be stuck open, you would have to apply heat with a hand held torch. If it opens it is still good. The one on my Honda came completely apart at the spring. If you remove you may as well replace it. They are fairly inexpensive and once you take it out, may as well complete the job.

Posted on Mar 31, 2014

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Can my 2003 kia spectra run without thermostat


Clarify your question. If it is overheating with the new radiator, how badly?. bubbles in the overflow tank?
Jack up front and take cap off and burp radiator overnight.
One suspects air bubbles, or the wrong water thermostat not opening for whatever reason.ensure water thermostat has a hole drilled through it

If its the electronic 'fan' thermostat, you are addressing the symptom not the problem. If the car has 300kms/150K miles, could be a head gasket leak - exhaust to water. Check radiator fluid for traces of exhaust gas.

Jun 21, 2014 | 2003 Kia Spectra

1 Answer

Overheating


Possible sticking thermostat (probable) but you could have a fan thermostat going bad also if it has an electric fan, next time it starts over heating look under hood and see if the fan on the radiator is spinning, if not it or the thermostat for it could be bad

Feb 17, 2012 | 1997 Subaru Legacy

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Overheating


thank you for choosing fixya.com and welcome!have you replaced your thermostat lately? it may also only be low coolant in your radiator.just make sure that your radiators full of coolant. there are alot of things to look at when overheating is an issue. is your cooling fan coming on? #1thing low coolant,,,#2 thing leaking or bad water pump,do you see fluid leaking from under the front of car when the radiators full? #3 bad thermostat in the engine,replacement thermostat not that bad. less than $75.00 parts and labor,suggest you shop at local garages,not dealer. compare prices. or ban radiator fan. and the fan replacement can depend on motor size.look for motor size under the hood and call for parts and labor prices seperatly.do not call same garage to get labor and parts prices,be smart,call the dealer and get the highest price for part and labor. then call your mechanic to get estimates of your repair. thank you!

Jan 28, 2011 | 2000 Ford Mustang

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Our 2000 Camry 4 cylinder just overheated, all fluids seem to be fine what else could it be?


Could be a bad thermostat if it stays closed it will overheat quickly.A bad cooling fan will overheat the car at idle but not while driving.A bad radiator act the same as the thermostat may be better at higher speeds.A water pump will usually make noise.Bug parts or debris clogging the radiator will be self evident.Air in the cooling system will usually make the overheat come and go. A bad coolant sensor can tell you the car has overheated when it actually has not. Just some things to look at.

Oct 16, 2010 | 2000 Toyota Camry

1 Answer

Overheating


WHEN CAR STARTING OVERHEATING MAKE SURE COOLANT LEVEL DIDNT GET TOO LOW. IF NOT I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP IF OVERHEATING WHILE SITTING IDLING COOLING FAN NOT COMING ON.CHECK COOLING FAN FUSE AND RELAY IF ALL IS GOOD.CHECK COOLING BY HOTWIRING IT.IF RUNS YOU HAVE A BAD COOLANT TEMPERATURE SENSOR OR FAULT IN WIRE CIRCUIT.IF FAN DONT RUN WHEN HOTWIRED REPLACE FAN MOTOR.IF CAR STILL KEEP OVERHEATING CHECK ENGINE OIL LOOKS LIKE MILK BLOWN HEAD GASKET.IF OIL LOOKS OKAY YOU NEED RADIATOR AND ENGINE FLUSHED OUT.

Aug 24, 2010 | 1996 Chevrolet Caprice Classic

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After changeing the water pump,thermostat and coolant i still have overheating


check your radiator ,when cold take the cap off and look inside sometimes mineral deposits build up on the core and restrict the flow and the thermostat could be bad or if you used sealer on the thermostat housing you may have used too much and that could stop the thermostat from opening,look for the simple things first.

Oct 14, 2009 | 2004 Chevrolet Silverado 2500 Crew Cab

3 Answers

Overheating problem


I would go with slowcalafl. It is either air, or a cracked head bad head gasket. Remove the radiator cap when cool. Start up the car and watch for bubble emerging from the coolant. If it continues to bubble, you have a bad head or head gasket. If not, look for improper timing as another possibility.

Jun 29, 2009 | 1994 Mitsubishi Diamante

1 Answer

Random Overheating Problem on Peugeot 206


It sounds like your thermostat has gone bad and sticking close, Replace the Thermostat and Antifreeze. When replacing the thermostat, buy a fail safe thermostat so you will not have a overheating problem when the thermostat fails. Good luck and hope this helps. Keep me posted, be glad to help.

Jun 22, 2009 | 1991 Peugeot 405

1 Answer

1991 525i overheating


first check coolant level .if all good replace thermostat .look at water pump drive belt make sure it is not slipping.if all is good i am looking at a bad water pump.

Apr 19, 2009 | 2007 BMW 525xi Sedan

2 Answers

I have an overheating problem.what could be wrong


Overheating can be casued by a few things.

1)Thermostat
2)Water pump
3)Dirty coolant clogging the pump

A thermostat is the cheapest part to replace, a thermostat opens and closes allowing coolant into the motor as needed to keep it cool, if it gets stuck closed then it doesn't allow any coolant into the motor thus overheating.

A water pump is what pumps your coolant around the system, and if this goes no coolant moves thus overheating. Usually when these go bad they leak coolant and are also noisy when bad.

Lastly could be bad or dirty coolant, a coolant flush can take care of this.

If I were you I would start with the thermostat followed by the coolant flush, both of these can be done in your driveway.

Hope this helps

Jun 25, 2008 | 2000 Ford Focus

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