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Cadillac
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13 Posts
Discussion Starter #1
car is overheating there is no leaks and i has 140k miles it overheatswhen u hit the highway starts overheating and sarts pouring out the overfow hose then i full over add more so it cools down and make it home but i believe the fluid is not circulating because i put it on heat hot andno hot air coming through just fresh air so the heater is not working and i believe its not circulating anyone have any ideas
 

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1996 Deville (sold), 2000 Mustang GT
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1,300 Posts
Go have the coolant tested for exhaust gases or look for coolant in you tail pipes, sounds an awful lot like a headgasket.
 

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White Diamond '03 DHS (with DTS floor shift)
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86,998 Posts
You are not getting any heat from the heater because you have air (or exhaust gases) in the cooling system. Check the purge line for coolant flow. If there is no flow, locate and clear the obstruction. If there is flow or it continues after clearing it, follow Misfits advice.
 
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