Question about Chevrolet Cars & Trucks
I replaced the thermostat. I get zero warm air and yet the engine over heats in under 20 minutes of driving. I am also leaking coolant.
Repair coolant leak.
If you cannot locate the leak, run a pressure tester and try to locate the leak.
Posted on Nov 06, 2012
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Posted on Jan 02, 2017
SOURCE: 1966 Ford Mustang overheating
try to run the water pump without hoses, and add water in the 'in' side, if is powers out the other side, then it's fine. how is your water/coolant mix?
Posted on Dec 01, 2008
After replacing the thermostat, you must bleed the air from the cooling system.
To bleed air from the 2.2L and 2.5L engines, remove the plug or sensor on the top of the thermostat housing. Fill the radiator with coolant until the coolant comes out the hole. Since the plug is made out of steel and the thermostat housing is aluminum, it is a good idea to apply an anti-seizing compound or Teflon® tape on the plug threads prior to installation. Install the plug and continue to fill the radiator. This will vent all trapped air from the engine.
Any trapped air in the heating system will have to be displaced by coolant. Once the cooling system is filled, with the radiator cap off, turn of the heater at it's highest setting. Start the engine and allow it to reach operating temp. You should see a drop in the coolant level as the air in the heating system is displaced by coolant. Add coolant to the proper level and replace the radiator cap.
Keep a close eye on the coolant level for at least the next couple of weeks. The cooling system is a "closed" system. Any significant decrease in coolant level indicates a problem.
If you have any questions, let me know.
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Drive safe and be warm.
Posted on Feb 02, 2009
SOURCE: No Heat In My Honda Civic.
I do not know the history of your 94 civic as far as mileage, how well the car has been maintained or not maintained. Could be a block within one of your heater hoses, the valve that open and closes to allow the radiator fluid through your heater core to recirculate the water, or a block within your heater core from rust deposits and or lack of servicing your radiator fluid could cause a build-up of deposits. You might have an air lock within your cooling system" air pockets". Perhaps you can purge your coolant system to allow any air bubbles or pockets that may have entered the cooling system when adding coolant, replacing a radiator, or simply servicing the coolant system. Make sure you have the proper radiator cap to produce the proper amount of pressure with your cooling system. Check for any fluid leaks in your cooling system as well. This may allow air into your cooling sytem.
Posted on Feb 27, 2009
SOURCE: 1999 Ford Windstar 3.8 no heat
If you have a knock or clicking noise behind the radio, it is the blend motor. The blend door is spring loaded and the gears in the blend motor are "stripped". The door is spring loaded so that the door is closed to the heater core. About 2 hours to replace and a lot of bending and stretching. You don't have to remove the dash, but all of the trim, radio, and controls will need to come out.
Posted on Mar 01, 2009
The correct way to replace the thermostat would be to replace the actual part with a new one, not from a junkyard or anything and put a new gasket in with the new part.
Posted on May 01, 2009
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