Coolant system antics
03’ e53 3.0 had head gasket 13k miles ago. Recently getting low coolant warning, comes back 2-300 miles later (doesn’t get lots of mileage .) Top off, move on. Dash temp sensor rock solid straight up.
Wife said a tiny bit of white smoke on cold start. Little stumble on cold start also, goes away on second start.
Noticed upper and lower rad hoses were tight when warm, this morning the rad hoses were slightly less tight but good bit of pressure when I loosened the overflow cap.
Pretty hot where I am, mid 90’s during the day.
Anything I should worry about?
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