I showed up to Parker Transmission with a slipping transmission and asked for help. They hooked up a computer to my car and ran some diagnostics. Brought the codes into the shop and looked them over. He got a puzzled look on his face and said, does your heater blow cold air? What! how did he know that! turned out I had a bad thermostat and since the car wasn't warming up, the computer wasn't controlling the transmission. Total bill, Nothing! He had plenty of customers in the shop and now I know why. You can trust these guy's.
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