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overheating problem
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Old 03-19-2005, 07:05 PM   #1
waddlex
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Exclamation overheating problem

i just put in a new thermostat in my 01 rs and the dam thing still overheats. all the coolant goes into the overflow and there isnt that much pressure in the upper hose. the fan doesnt come on when it should. i was thinking it must be a sensor of some sort. i have no idea where one of these sensors would be located so if anyone knows anything i could try id apperciate the help.
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Old 03-19-2005, 07:46 PM   #2
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sounds like you have a blown head gasket, and if that is the case, then you are having hot exhaust gases leak into your coolant system. You need to have a test done and see if they are leaking.

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Old 03-19-2005, 09:16 PM   #3
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thats not it cause subaru put in new head gaskets in this car because i was leaking
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Old 03-20-2005, 07:56 AM   #4
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come on you guys got nottin for me
thats no fun
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Old 03-20-2005, 02:11 PM   #5
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Quote:
Originally Posted by waddlex
i just put in a new thermostat in my 01 rs and the dam thing still overheats. all the coolant goes into the overflow and there isnt that much pressure in the upper hose. the fan doesnt come on when it should. i was thinking it must be a sensor of some sort. i have no idea where one of these sensors would be located so if anyone knows anything i could try id apperciate the help.
The radiator fan doesn't come on at all?? If you are cruising (ie traveling at a speed high enough to force air though the radiator without the fan on) does it still overheat? If that's the case, here's what I would try:
1. Check the fuse/fuses in the radiator fan/temperature sensor circuit.
2. Does the fan work?? (connect it across the battery to see if it turns on).
3. Check the fan relay.
4. Check the coolant temperature switch.
5. (hopefully you find the problem before you get this far) Check the wiring.

I had this problem on a Honda Civic, but my Subaru is brand new. If you had a Civic, I could give you exact instructions on how to check all this stuff, but for the Subaru, you'll have to do some research yourself. Good Luck!
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Old 03-20-2005, 03:08 PM   #6
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DO A COMPRESSION CHECK, like Skully said...
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sounds like you have a blown head gasket
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Old 03-20-2005, 03:53 PM   #7
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it overheats while driving down the highway so i turned off the highway and pulled into a parking lot turned the heat on and just kinda sat there for a little bit. i noticed that the fans only went on once in awhile and i thought they should have been on the entie time while idleing. i dont think its a leak of anysort cause i still have fluid. i will check the fan relay and i have no idea where the coolant temp switch would be.
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Old 03-20-2005, 08:48 PM   #8
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Don't waste your time checking all that stuff if the radiator fan turns on. If it doesn't turn on at all, then check that stuff
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Old 03-21-2005, 05:41 PM   #9
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yea i have no idea what the problem i checked everything i could think of and it just overheated again today
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Old 03-21-2005, 05:55 PM   #10
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what i would do to see if the fans work at all is plug in teh green connectors under the drievsr side dash to make sur ethey even click on... if they dont u know u have a bad relay/wire/fuse

if they do click on, with teh car idling, check if they click on(without letting it oer heat)

if they dont go on report back
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