Q: Still overheating after replaced coolant

asked by on October 22, 2016

My car began to overheat while driving to the point where I had to pull over. Smoke was coming from underneath the hood and the temperature gage was all the way in the red. The coolant was low, so I added some to the required level and went to get an oil change thinking that had something to do with it. The car began to overheat again. I was thinking it could be the coolant pump but the mechanic said it is costly to take it out and replace, so I am trying to avoid doing that if it could possible be something else. Any ideas on what else would cause it to consistently overheat like this?

My car has 122000 miles.
My car has an automatic transmission.

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