My "check engine" light had come on , displaying itself on my instrument panel. They went to work on it immediately when I arrived about mid morning. After having to charge my battery cause it was weak, they ran diagnostics and determined my coolant temperature had dropped below normal operating temperature when driving back from Ft. Worth when the outside temperature had gotten down to 15 degrees and I was driving home in it and was going faster than I should have. They reset the closed loop and charged me 25 dollars which I thought was a great deal. They only did what was needed and didn't dream up extra work they could have done in order to drive the price up and get me to pay a much higher amount, unnecessarily.
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