Stumped overheating 02 WRX - Subaru WRX Forum
 
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post #1 of 9 Old 10-03-2013, 12:15 PM Thread Starter
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Question Stumped overheating 02 WRX

Anyone please help, totally stumped!

Replaced radiator with new Mishimoto alum and new themostat. Have overheating problems and no heat. radiator is pushing fluid back out when increasing rmp's. top hose hot while bottom is still cool.

Already checked the new thermostat, boiling water method (good)

Already burped the system multiple times, also drained radiator and refilled through overflow (to make sure) also ran heater when filling

Already tested head gasket (good)

looking for any answers aside from replacing the water pump? really don't want to do this if unnecessary.

Any help would be very much appreciated
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post #2 of 9 Old 10-03-2013, 12:23 PM
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Just my 2c but did you check if your fans are kicking on, I am not good with these cars yet still a newb, but I know the guys on here wil chime in and correct me
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post #3 of 9 Old 10-03-2013, 12:35 PM Thread Starter
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Yes, both fans come on and seem to be working fine. thanks.
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post #4 of 9 Old 10-03-2013, 01:21 PM
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No heat would leave me to believe that there is air in the system. When I replaced my rad in mine with a misho aluminum one like yours I had to let it run for 30 mins almost and every once and awhile I'd hold the rpms at 2000. These systems can really be a b1tch to bleed


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post #5 of 9 Old 10-03-2013, 02:05 PM Thread Starter
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Thanks for the info: I'll give it another go around. I'm not sure what else I can do aside from fill from the overflow and squeeze the hoses. I stood with a funnel on top of the radiator yesterday watching it puke back and forth without ever looking like the level was going down. I massaged the hoses, ran the heater, jumped up and down and still nothing changed.

One more time I guess.

Any idea how I could eliminate the possibility of a bad water pump aside from removing it?
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post #6 of 9 Old 10-03-2013, 04:14 PM
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Is there 2 reservoirs. On your model?


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post #7 of 9 Old 10-03-2013, 05:01 PM Thread Starter
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not that I'm aware of? just the radiator and the overflow near the turbo.
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post #8 of 9 Old 10-03-2013, 05:07 PM
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The one next to the turbo is the one you fill. Always fill from the highest point in the system which is this one. No need to even open the cap on the radiator. Fyi the plastic jug next to the radiator is the overflow not the reservoir next to the turbo.

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post #9 of 9 Old 10-03-2013, 06:12 PM
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Fill from the one next to the turbo and all problem should be solved. You have a shit ton of air in the system I'm guessing


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