I just did tune up on car because wires were rusty. I changed thermostat and water pump but this is what my radiator cap looks like looks like mud but do not see any in radiator when we look.
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Saturday, August 29th, 2020 AT 11:04 AM
(Merged)
HMAC300
MECHANIC
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Check coolant system for a blown head gasket make sure radiator is full with coolant when you do this. Auto parts rent tester or you can purchase a chemical at auto parts that does the same. See link. https://www.2carpros.com/articles/head-gasket-blown-test