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Why pt cruiser overheats

2006 pt cruiser 2.4 turbo ho put on fail proof thermostat a month or two . Don't not overheat on 20 mile drive but does on a longer trip. Radiator is full just notice coolant tank may be leaking could that be the only problem or something else? Cooling fan is working also.

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It's all in the bleeding. Follow these steps. 1. Work on cool engine 2. Drain overflow tank. Pull off hose at tank site. Use a throwaway cup to catch antifreeze. 3. Put overflow tank hose back after draining to add mark. 4. Open bleeder valve 10 mm and remove overflow hose at radiator end. 5. Slowly pour antifreeze into radiator. as it rises the antifreeze will start to "dribble" out the bleeder valve. Keep pouring till you get a steady stream. 6. Close bleeder valve replace overflow hose and start car leaving radiator cap off. Turn heat on high. 7. Add antifreeze till full only in radiator not overflow. Watch the bubbles about 1 to 2 minutes. Antifreeze is still flowing as the engine warms so 2 minutes was the longest. 8. Replace 16 pound radiator cap and go for a ride. If you have no major issues this will work. I've done it several times. Anytime you open the radiator you need to follow these steps.!!

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Did you bleed the air out of your cooling system after installing the thermostat? Some come with bleed valves on them but a lot do not. Use this link for instructions on how to get the air out if yours did not have the valve build in.

http://www.instructables.com/id/How-to-B...

If you are not losing water anywhere then it either air in the cooling system or you may need a new water pump and or clutch fan, might be all one unit. I would refer to a haynes/chilton manual for that repair or a lot of Chrysler or pt cruiser forums have the factory manual available for download.

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Check the temp gauge for right reading.

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After replacing all related parts thermostat radiator fan etc. we turned to only thing left. Head gasket. We were right. The water jacket part of the head gasket was leaking. Our original was actually three layers pressed together, and the top layer developed a crack between two water hole . We did ours ourselves, but it's not cheap if you can't. She made 224k before needing any of it however. Great car.

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There is a 10mm bleed zirc like fitting on the thermostat housing tube. When the engine is stone cold, remove the radiator cap, open the bleed screw, top off the radiator with coolant until no bubbles come out of the bleed screw. Close the screw and replace the cap. See if this works.

There are also two speeds to your fan. High and low. Be sure the high speed is working properly. Get a mechanic to test it, or google the procedure. Good luck

Mine would sound like a coffe pot all the time. mine was a burned out fan that would stall once in awhile. Full replace fixed it. But, went through all the other methods I could find as well.

Update (05/05/2016)

There is a 10mm bleed zirc like fitting on the thermostat housing tube. When the engine is stone cold, remove the radiator cap, open the bleed screw, top off the radiator with coolant until no bubbles come out of the bleed screw. Close the screw and replace the cap. See if this works.

There are also two speeds to your fan. High and low. Be sure the high speed is working properly. Get a mechanic to test it, or google the procedure. Good luck

Mine would sound like a coffe pot all the time. mine was a burned out fan that would stall once in awhile. Full replace fixed it. But, went through all the other methods I could find as well.

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Forget this, read rlewiz comment first: petrohawk

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A Leaking coolant tank is not a good thing. Verify if it is and replace it if needed. My problem was a leaking head gasket. After the engine warms up, check the exhaust pipe for a small amount of water coming out . Not having the money for a mechanic to change it out, I used "Blue Devil pour n'go treatment" 32.00 a bottle, but well worth it. Follow the directions as shown. My PT no longer overheats. Was sounding like a coffee pot boiling all the time.

If it works. Be sure to actually replace the head gasket eventually.

Also, make sure"Both" speeds of your fan are working. There is a low speed and a high speed. When the high speed comes on, you can really hear it! The fan should stay on after you turn off the key for awhile. Cools the water in the radiator. If not have your sensors checked. Good Luck!

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Don't the turbo engine have a verble speed with no relay?

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