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post #1 of (permalink) Old 09-12-2002, 01:38 PM
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OVERHEATING, new radiator & thermostat no help!!!

I have a 1988 GL Wagon 4WD, with an automatic tranny. It boiled over one day going up a mountain pass, and continued to get extremely hot under normal conditions. I had several mechanics look at it, and they recommended replacing the radiator. I took their advice and put in a brand new Napa radiator and new thermostat as well. BUT, it is still overheating!! What's up? I thought it could be the water pump, but again, I've had mechanics tell me it would be loud and noisy, and would be obvious. I haven't heard or noticed anything unusual, so WHAT IS GOING ON???? PLEASE HELP! Thanks.
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post #2 of (permalink) Old 09-13-2002, 11:18 PM
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Re: OVERHEATING, new radiator & thermostat no help!!!

Cracked cylinder head?
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post #3 of (permalink) Old 09-18-2002, 08:01 PM
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Re: OVERHEATING, new radiator & thermostat no help!!!

Check fan thermo switch and electric fan if it's in good working order. I have dual fans in my Brat. All Subarus have an additional space on the radiator for 2nd elec. fan.
Check sending unit it may be fooling you also.
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post #4 of (permalink) Old 12-20-2002, 07:35 AM
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Re: OVERHEATING, new radiator & thermostat no help!!!

I would insure the fan works and even install an extra fan.Next I would do a radiator pressure check to see if you have a bad head gasket or cracked block/head.Last,if your engine got real hot ,you might have warpped you head.RR
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post #5 of (permalink) Old 10-21-2003, 04:21 PM
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Re: OVERHEATING, new radiator & thermostat no help!!!

I had a 93 Imprezza that was overheating and running hot all the time. I changed the radiator cap and haven't had a problem since ( 4 years). I hope you changed yours as well.
post #6 of (permalink) Old 09-14-2005, 07:32 PM
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Re: OVERHEATING, new radiator & thermostat no help!!!

check for hoses that collaspe,,,the suction side of the pump will collaspe at speed when the get old.... check for slipping belts,,,check for clogged exhaust...
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