Overheating problems

[scumfromohio]

Originally Posted by CTScott

Hmmm. And, no sign of wetness under the hood? Any sign of moisture or smell of coolant from the A/C vents?

Also, remove the oil filler cap and see if there is any foaminess on the bottom of it.

There's no smell of coolant inside the car or from the vents. It's hard to say about wetness under the hood cause I'm not the most accurate coolant pourer. Haha so I've spilled a bit. I'll check for foaminess tonight. I was thinking about renting a pressure tester tomorrow and giving that a shot what do you think? Thanks for all your help man.

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[CTScott]

Originally Posted by scumfromohio

There's no smell of coolant inside the car or from the vents. It's hard to say about wetness under the hood cause I'm not the most accurate coolant pourer. Haha so I've spilled a bit. I'll check for foaminess tonight. I was thinking about renting a pressure tester tomorrow and giving that a shot what do you think? Thanks for all your help man.

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Pressure tester might not be a bad idea. Also, I have noticed that if you disconnect the radiator with hoses that are a few years old and reuse the hoses, that they often don't reseal well unless you replace the stock hose clamps and tighten the heck out of them.

[scumfromohio]

Originally Posted by CTScott

Pressure tester might not be a bad idea. Also, I have noticed that if you disconnect the radiator with hoses that are a few years old and reuse the hoses, that they often don't reseal well unless you replace the stock hose clamps and tighten the heck out of them.

OK so pressure test was fine it stayed the same pressure for 10 minutes. We ran it for a good while and after an hour or so coolant started coming out the reserve again, but the filler neck and radiator cap are both brand new.

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[CTScott]

Originally Posted by scumfromohio

OK so pressure test was fine it stayed the same pressure for 10 minutes. We ran it for a good while and after an hour or so coolant started coming out the reserve again, but the filler neck and radiator cap are both brand new.

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Coolant will go into the reserve tank as it gets hot and expands. Is it overflowing the reserve tank?

[scumfromohio]

Originally Posted by CTScott

Coolant will go into the reserve tank as it gets hot and expands. Is it overflowing the reserve tank?

Yes, its over flowing the reserve tank. That's the only place I can think I'm losing the coolant. When I seen it, it was only a little bit, but it has to be going somewhere ya know.

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[CTScott]

Originally Posted by scumfromohio

Yes, its over flowing the reserve tank. That's the only place I can think I'm losing the coolant. When I seen it, it was only a little bit, but it has to be going somewhere ya know.

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If it starts at the "cold" level in the reserve tank and then overflows it when the engine is hot, then you still have air in the system. Air expands far more than coolant does, so the air bubble pushes the coolant out.

[scumfromohio]

Originally Posted by CTScott

If it starts at the "cold" level in the reserve tank and then overflows it when the engine is hot, then you still have air in the system. Air expands far more than coolant does, so the air bubble pushes the coolant out.

I was burping it for over an hour tonight. I noticed that whenever the fan in the front of the car would turn on or I would turn on the heat the coolant which I filled to the top would lower a good amount. So at first I thought it was just air bubbles, but then I noticed a growing puddle underneath the car. I'm wondering if it's dumping when the fan turns on or heat is on. Maybe the heater core. But shouldn't that dump inside the car? Idk, I know the pressure test came back no leaks.

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