Coolant vacuum flush
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Joined: Apr 2022
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From: Phoenix
Coolant vacuum flush
I am going to pull the coolant out of my car and put it back in under vacuum. The car doesn’t have to be up to temp to do this and have the thermostat open does it?
I also have to plug the overflow?
thanks
I also have to plug the overflow?
thanks
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From: SIOUX FALLS SD
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Cruise-In III Veteran
The C7 is one of the easiest cars I have ever owned for changing the anti freeze. All you have to do is drain the radiator and refill it. I did this and didn't have any air locks or problems. The anti freeze that came out was new looking and I want to keep it that way. Unless it's really bad I wouldn't try anything else. I do have a Lisle product that you can use but I never needed it for my Corvette.
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Joined: Apr 2022
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From: Phoenix
I have a Katech 160 thermostat and it seems to be sticky. I had the classics of a bad thermostat. I am taking it apart today and putting the stock one in. I just figured it may be a good tool to use to refill it.
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I did not have to vacuum mine out.
Pretty sure the C7 self burps. I've changed the thermostat twice and have not had any issues at all even though I did not use a vacuum tool.
Pretty sure the C7 self burps. I've changed the thermostat twice and have not had any issues at all even though I did not use a vacuum tool.