collier89139 Posted December 10, 2009 Share Posted December 10, 2009 I need some help plz. My 1993 legacy is overheating. I flushed out the car with a hose and it still does it. The fluid is backing up into the resvoir and white smoke is pouring out from under the hood. I do not know if the radiator is clogged or it is the thermostat. Thanks for the help Link to comment Share on other sites More sharing options...
Platinum_Racing Posted December 10, 2009 Share Posted December 10, 2009 If it was the thermostat it would have to be stuck closed in order to overheat the engine. That would mean the coolant inside the engine is not getting back into the radiator, meaning it would not be able to fill the overflow tank. It's likely that your car has a blown head gasket, which is leaking hot combustion gasses into the coolant. check the oil and see if there is any discoloration and with the car cool remove the radiator cap. Start the engine with the cap removed and run the engine. If you get bubbles rising to the top of the radiator consistently after the engine has reached operating temp its probably a head gasket. Link to comment Share on other sites More sharing options...
BaseTulsa Posted December 21, 2011 Share Posted December 21, 2011 My 1993 legacy (2.2L, 5-speed, 220,000 miles) is also overheating, according the temperature gage. Two weeks ago when I bought it, the temperature gage would read normal after driving a while and the heater would work fine. Then one day it was overheating. I made it home and the next day decided to let it idle until it warmed up, and that time the temperature gage read normal for the entire time I drove it that day. The next day I went to work and the gage was reading hot after 10-15 minutes of driving. I tried letting it idle again to warm up, and it worked, only during that period of operation. After that, it never did read normal temperature again. So I did the simplest repair and put in a new thermostat, yet that had no effect whatsoever, and I am getting no heat inside the car. Also, when I have driven for at least 15 minutes and the temperature gage reads hot, the radiator cap is barely warm, and the resevoir contains no fluid at all. It seems that the fluid in the engine is not getting into the radiator. My next inclination is that the radiator is clogged. Or perhaps the water pump has failed. Or perhaps a head gasket is blown. Based on my symptoms, can I get some suggested diagnoses? Thanks. Link to comment Share on other sites More sharing options...
ehbontrager Posted January 14, 2012 Share Posted January 14, 2012 It could be simply low on coolant. It's pretty tough to get them full. Have you noticed ever the smell of coolant after driving it?? Or have you seen any evidence of it leaking? Having no heat or occasional heat is usually indicative of low coolant level. Have you ever replaced the water pump? When mine went out, it locked up on the timing belt and made a squealing noise that never quit and the heat went immediately cold and never warmed again. Mine is a 92 and has about the same mileage and as far as I know I just replaced the original water pump. I also replaced the timing belt and the cam and main front seals and put a new o-ring in the oil pump. Good heat now. Eric Link to comment Share on other sites More sharing options...
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