dcamalone Posted June 23, 2004 Share Posted June 23, 2004 Engine temp has been creeping up recently during city driving (usually w/ A/C on). I have checked the coolant level and it was fine. Radiator may need to be flushed however. Yesterday, the engine temp SHOT UP, even w/ the A/C off. I got home and ALL of the coolant was used up. I refilled the coolant reservior, but that didn't help much. I am also considering replacing the thermostat. From what I have found, it is only about a $12 part. However, I was not able to find were it is under the hood. If anyone is familiar with this process or the '94 SC300 engine, please contact me, I would greatly appreciate it. davidcmalone@hotmail.com Quote Link to comment Share on other sites More sharing options...
wandawoods Posted June 23, 2004 Share Posted June 23, 2004 not sure about SC3, but for 1UZFE in SC4, the thermostat housing is in between 2 CAM shafts which house distributor rotors. u will have to disassemble a lot to get to it. corret me if wrong, I don't believe faulty thermostat will cause engine temp to go up. do the complete coolant flush with toyota red coolant first, then see what happens. Quote Link to comment Share on other sites More sharing options...
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