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Old 07-24-2013, 09:37 AM   #37
CTScott
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Originally Posted by Denzel_m View Post
Thanks, I did that. The fan turned on. But when I put the tip of my finger in the coolant it was warm with in minutes. Is that good?
That is normal. The coolant will get up to 180F within just a couple of minutes of running under load.
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Old 07-06-2018, 08:36 PM   #38
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So I just changed the water pump radiator and thermostat and Iím still having overheating problems ... and tips or help I can get is appreciated!!
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Old 07-06-2018, 08:59 PM   #39
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Define overheating - what are you experiencing? Could be a bad rad cap, could be a faulty coolant temp sensor, could be a blown head gasket etc etc
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Old 07-06-2018, 09:35 PM   #40
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I can drive the car for about 15-20 minutes before it goes hot also when the ac is on it goes hot faster
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Old 07-06-2018, 10:53 PM   #41
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So I just changed the water pump radiator and thermostat and Iím still having overheating problems ... and tips or help I can get is appreciated!!
Are you positive you put enough coolant in the car? You might have an airlock. I've done many coolant changes and the Yaris purges air pretty easily if you have enough coolant in the system. If you have a smart phone you can pick up Torque Pro app and a cheap OBD2 bluetooth adapter (everything for under $20.00) and monitor coolant temps. That's what I use so as I approach ~180 F, I start feeling the upper rad hose for heat to see that the thermostat is opening.
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Old 07-07-2018, 01:01 AM   #42
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yeah Iím positive it has enough coolant... just today the coolant was spilling threw the resivor tank
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Old 07-07-2018, 06:34 AM   #43
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And the electric fan is running, it should run when the AC is on.
And on mine 2013 the rpm on the fan increases when the coolant get hot.
So it could be the thermoswitch on the coolant.
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Old 07-07-2018, 08:07 AM   #44
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Pull the rad cap while cold, start the engine and let it heat up. If start seeing bubbles you have a head gasket leak. Had that happen on an old CRX race car I used to crew for.
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Old 07-07-2018, 10:57 AM   #45
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I tried the rad cap all I get is a couple air bubbles... could it be a bad thermostat?
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Old 07-07-2018, 01:10 PM   #46
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If everything started when you ran the car with low coolant level I think air could be the problem.

Double check all your work and flush the whole system as instructed in the water pump replacement guide.

Properly fill and bleed the air out of the system, use toyota coolant.
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Old 07-07-2018, 02:09 PM   #47
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Got it... thanks for all the help really appreciate it
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Old 07-10-2018, 12:55 PM   #48
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interesting thread, I have the same problem
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