Thread: Coolant Leaks
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Old 03-04-2023, 01:43 PM
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Quote:
Originally Posted by 80stech View Post
The rubber seals that seal the rad core to the tanks can sometimes only leak for a period after the car is shut down. While hot the seals are good, when cold the cooling system is under vacuum, but in between there can be a leak.

Darn it...I may have this problem. I will only find a puddle under the car (under the expansion tank/coolant cap area) after parked overnight...sometimes. I don't see it all the time and don't see it after it's parked a day at work. The expansion tank is relatively new (maybe 3 years, less than 5k miles) and the radiator is about 1 year old. Could it also be a bad aux fan not running after shutting the car off to cool the radiator further, thus causing a slight overheat and dumps the coolant out the cap? May just drop it off at my indy and let him figure it out
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