BIGTIME OVERHEATING You might like this.
08-11-10, 05:29 PM
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BIGTIME OVERHEATING You might like this.
So anyways i had a bad radiator, bad water pump, bad coolant hose on my 93 gs300... Replaced them all... Also did the thermostat just to do it. And i notice the cooling fan clutch was very weak so i replaced that also. Heres the kicker. The guys at the parts store sold me an es300 without me knowing until my gs300 radiator caps kept letting the coolant boil out. So i used an es300 rad cap stopped the problem... Vondabar. Now whenever i use my a/c what happens... you guessed it. Car slowly very slowly starts overheating. Im thinking maybe the rad caps bad or that the es300 runs on a lower pressure cooling system than the gs300... Hook me up with some vonderful information here. Let me here your thoughts and opinions.
08-11-10, 11:39 PM
#2
It could be the rad cap....check If the water is coming out from the cap.....someone changed the rad on my car and I got a rad cap from autozone and it doesn't hold the preacher.....I have to find one that closes al the way
08-13-10, 08:44 AM
#3
unfortunately, I had the same problem. Got a new radiator and the cap was crap. Not until I got a TRD rad cap things got fixed. I had REALLY ODD issues with overheating here in AZ and one of the issues was not even the water pump, but the harmonic balancer; it would stop turning at higher revs thus not making the water pump clutch turn because the belt would stop spinning... anyways, I would get a dealer cap or a TRD rad cap if I was you. Plus it looks pretty 
08-13-10, 03:42 PM
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Wait how would the harmonic balancer stop spinning. It always spins its locked on to the crankshaft. If the belt were to stop spinning the power steering would stop working and so wouldnt the alternator and the a/c. Please explain this to me because i cant see the logic behind that. Then again cars can be weird.
08-14-10, 01:27 AM
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Wait how would the harmonic balancer stop spinning. It always spins its locked on to the crankshaft. If the belt were to stop spinning the power steering would stop working and so wouldnt the alternator and the a/c. Please explain this to me because i cant see the logic behind that. Then again cars can be weird.
08-14-10, 05:57 PM
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ooooooooooooh i get it now... Thanks for lettin me know. I honestly didnt know that. Ima have to check it... Is there any way to diag this or do i grab the thing and start yankin it...lol yankin it.
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08-16-10, 08:24 AM
#8
AirforceGS hit it on the head. The rubber weakens and the belts might stop spinning at higher revs. After I was trying to figure out what was wrong in my garage, while revving the car, the balancer decided to shoot out breaking my fan and jacking my radiator leaving a nice line in the concrete... Thus leading to getting a new radiator and my radiator cap issue
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