Tiny Bubble?

JunkOwner
Sat, 01 May 2021 14:30:02 +0000
General Discussion

An Impala, 2008, 3.5L is making creaking and gurgling sounds after a drive. When I shut the car off, the noise begins withing the first 30 seconds to a minute. There are tiny bubbles streaming into the coolant reservoir from the overflow tube. The coolant level is not low. The car does not overheat, There is no evidence of coolant in the crankcase or oil in the cooling system. I should mention that this is intermittent. I suspect it will be more constant as the weather gets warmer. Do I have a head gasket leak, a bad radiator cap, a thermostat problem?

17 posts - 8 participants