Question about 1991 Chevrolet Cavalier

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Over heatting changed thermast haven a hard time gettin air out hose are worm by moter and not hot at radador

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Fill the engine with coolant and let it run a while..
You can squeeze the coolent hose to force the coolent towards the engine once the thermostat has opened... which should in turn release the air pocket.
keep the overflow bottle full of coolent...

Posted on Sep 28, 2010

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Sounds like the water pump isn't working. change the water pump

Posted on Sep 28, 2010

  • fyredawg47 Sep 28, 2010

    You can also try running the car with the heater running on high speed and the radiator cap off until the car reaches operating temperature. Also make sure it's full of antifreeze and water once it reaches the proper temp and the thermostat has opened before putting the cap back on.



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98 ford ranger over heating problem i change thermastate already what else can I try

Check out the water pump.

Feel the hoses. If one is hot and the other warm / cool and you've installed the thermostat properly (not backwards!); I'd suspect a failing water pump.

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I have no heat in my car was wondering if this could be a vacum hose problem

i just had almost same thing. i was getting heat then cold air. replace thermastate and bleed the air out of lline

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Cost to replace upper radiator hose 2002 Jag s-type Had oil changed and was told inspection revealed upper radiator hose leaking. replacement $360.00 plus tax. I have had no signs of thermastate...

it could be a weeping leak......that has not become so bad that the coolant is causing air to get into the system and run hot....the hose is about 130 bucks and about 1.5 hours to change...then coolant is 20.00 per liter from dealer so 360 is pretty close to the actual charges.But open the hood and let the car reach temperature and look for the hose running up the back of the from top to bottom.and see if you smell any coolant.

Aug 30, 2011 | Jaguar S-Type Cars & Trucks

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Heat fan is working, no hot air and motor gets hot at high speeds, both problems started at same time

sounds like you better put antifreeze in it. your radiator is low if you have no heat and its gettin hot.

Jan 12, 2011 | 2003 Ford F350 Super Duty DRW SuperCab

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Running hot.changed the thermastate and it still running hot and heater not working dont think water is circlelating

You will need to check for bleeder screws the upper most parts of the cooling system as the air is creating a pocket inside the engine, make sure you do this when the engine is cool, if there are no bleeder screws try taking a heater hose loose and fill the radiator until it comes out at the heater hose fitting

Dec 18, 2010 | 1997 Isuzu Rodeo

2 Answers

Overheats gets hot on the top of the motor but at bottom hose from thermastate it is cold changed radiater and put in two thermastates still gets hot help

1. In order to eliminate, remove the thermostat altogether, for now.
2. Make sure the heater bypass hose is working. You could route the hose going into the interior heater and bypass the heater also.

It should eliminate a lot!

Next, consider the water pump.

Hope this helps!

Sep 15, 2009 | 1995 Lincoln Continental

1 Answer

Coolant leak from upper radiator hose where it meets engine

thermistate housing is the place you refer to it fuction is to hold a thermastate to open and close water flow at 150 to 190 degree according to car spectif the thermaste sticks it causes overheating and can blow the thermastate gasget, the tole cost is about 30$ at most for the thermastate and many other things can cause a car to over heat and cause a hose leak and somtimes it is simple to just tighten the hiose clamp at the thrmastate and problem sovled see a water leak causes the radiator to lose presure and thus with out a sealed tight water cooling system the boiling point of water is lower and thus the car over heats when in doubt stop by the local gas station and have a tech take a quick look as it could be simple as the hose clamp difficult as a therm,astate but do not let it go to warp a head gasket as this blown headgasket is what is the end results of running a car to hot

Jul 03, 2009 | 1999 Mercury Grand Marquis

1 Answer

Heater No Heat

Hi my name is Allen!

If both sides of heater core hoses or to hot to hold on too then your heater is OK, but if one is to hot too hold on to and the other is just warm and you can keep holding it then you have a restricted heater core.

NOTE: If both or to hot too hold, then you have a door problem. If you change the temp door and air flow feel the same, then you could have either a bad motor or a broken door.

NOTE: We have seen a lot of broken doors on this year model, if you can reach the motor for the temp door and take it off. Then you can turn the lever and if it keeps turning you have a broken door.

For further assistance contact me at FixYa!

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2 Answers

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Welcome to fixya

this could be cause by the thermastate or the fan could not be working i would replace the thermastate and check fan make sure it is running when the car heats up

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has the radiator been flushed and serviced? check hoses, how about the fan clutch???

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