Car running hot but I have coolant in it
My car has 140000 miles.
My car has an automatic transmission.
If you are full of coolant but are overheating then you either have a broken cooling fan or a thermostat that is stuck closed. If the fans are coming on then the most common failure will be the thermostat.
Have the system checked before you overheat and damage the engine. I’d recommend enlisting a certified mechanic who can diagnose your overheating problem and quote the repairs needed. Once the issue has been pinpointed an accurate repair can be made.
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