Question about 2002 Chevrolet Cavalier Coupe

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How to bleed air out of coolant system on 2002 cavalier

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6ya6ya
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Posted on Jan 02, 2017

  • 204 Answers

SOURCE: bleed coolant system

Old methos id to leave the raditor cap off and squeeze the coolant hoses to get the air out.

Posted on Feb 05, 2010

emissionwiz
  • 75814 Answers

SOURCE: how do you bleed the air out of the coolant system

The generic method of bleeding air from the cooling system of any car or truck is to use a floor jack and raise the front of the car as high as poss, then fill the coolant recovery tank full and run the engine until it just starts to overheat, high end of normal zone on gauge, then shut the engine down and run cold water over the radiator core, this will self bleed the system and the coolant will be pulled from the recovery tank, repeat as necessary, never let the recovery tank run dry or more air will be pulled into the cooling systeml , if it still overheats then you need to have the head gaskets checked with a gas analyzer for hydrocarbons present in the radiator or recovery tank

Posted on Sep 29, 2010

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1 Answer

Bleed the coolant bleed valve in chevy cavalier


To get the air out of the block just run the engine without the radiator cap on until the thermostat opens then be ready to add water while the engine is running.

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I have 2001 chev. cav. and the thermostat is floating between 1/4 to 1/2 after 20 minutes. I replaced the thermostat and flash the coolant and no help. only 78000 miles


Did you bleed all air from the system? If not, use the bleeder screws to bleed the system if so equipped. If not, then remove the radiator cap and start the engine. Keep the coolant full in the radiator and watch for escaping air bubbles. When you see no more, put the cap back on and see if this solves your problem.

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Check the system is properly filled with coolant, bleed off any air locks as specified by manufacturer.
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1 Answer

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usualy the cap where you fill up the coolant has eihter a small hole or has a valve incorporated to bleed too much pressure out. if you are constantly loosing coolant, usualy this valve ist not the cause. usualy you have a leak in your cooling system, either somwhere in the cooler, the pipe, the hoses, which could be easy detected. or you have a leak into the cylinders. dedection difficult. if you cant find it, see a mechanic.

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1 Answer

My 2002 Ford Thunderbird is overheating. Have changed the thermostat but still overheats. My 2002 Thuderbird is overheating....had the Hydraulic Cooling Fan replaced 3 months ago.


You most likely have air in the system. These things can be a royal pain to get the air bleed out of the system.
Look back next to the brake booster and you will see a rubber tube with a screw cap in the end of it(this is the heater bleed), also on the front of the intake area you will see a black tube with an allen sloted cap.
Remove the slotted cap and screw the screw cc on the rubber tube. Add coolant to the coolant jug allowing the system to equalize until no more coolant can be added. Add as much coolant as possible to the engine fill( the sloted cap near intake). The heater air bleed will remain open.Replace the engine fill cap.Start the engine and turn the heater to MAX position.Close the heater air bleed when a steady stream of coolant comes from it, during engine idle. Allow the engine to idle for five minutes, add coolant to the degas bottle as needed to maintain the cold fill MAX mark.Reopen the heater air bleed to release any entrapped air and close again. Maintain engine speed of 2,000 rpm for 3-5 minutes or until hot air comes from the heater.Return to idle and verify hot air is still coming from the heater. Set the heater temperature setting to 75° F and allow the vehicle to idle for two minutes.Shut the engine off and allow to cool.After the engine has cooled, add coolant to the degas bottle to bring the level to the cold fill MAX mark. This should have the air out of the system.

Mar 02, 2009 | 2002 Ford Thunderbird

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