1. Karns Motor

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Knoxville, TN

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Karns Motor

5.0 (2 reviews)
Closed • 8:00 am - 6:00 pm

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8 years ago

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Mr Cool's AC Transmission and Brake Service - Glad to help you!

Mr Cool's AC Transmission and Brake Service

(55 reviews)

I had transmission issues with both of my vehicles at the same time. And both had the exact same…read moresymptoms. A mechanic that I use to service my cars (they don't do transmission) told me the best place (in his opinion) to take my van. The repair cost me $4500.00! Then it was time to take my truck in because I wanted to sell it, because since retirement I rarely drove it. But a friend told me about Mr Cool transmission repair (He loved their service and value) so I figured I'd give them a shot, as I felt the transmission shop I took my van to ripped me off. Long story there. So I figured since both cars had the same issue (stuck in second gear) that I'd be paying around the same amount on my truck repair. Then several days after I took it in, they called and I closed my eyes thinking another big bill. The receptionist said "your trucks ready, the total is $350.00 plus tax." I about fell on the floor. They did a great job, and the price was right! I only wish I'd taken my van to Mr Cool. If you have transmission issues, check out Mr Cool. They're VERY cool.

Ok. I have a transmission issue…read more Brought it in to determine the root-cause. They found an old (not cleared) thermostat problem that I fixed a year ago. It didn't totally close, thus not allowing the Cat o get up to temperature quickly enough. I replaced for $25 and 45 minutes, easy. Check-engine light disappeared. But obviously the code locked in. And also they said I needed a full replacement transmission. Which I don't deny may be required. , sorta. I am 71 years old, done professional car work since 17. The ONLY reason I am not doing this myself is age. But that said, before I would tear down anything I would already know what component is bad. A valve, cam sensor, etc. My symptoms are of a valve-body stuck valve, causing the clutch(s) to not fully engage. Thus I wanted a more concise explanation for why I should give them $5,000 - $6,000 to replace the entire Xmission. I really should have had a talk with the trained mechanic that could go into depth about the detailed reason it is giving me problems. But I got the worker at the register explaining the estimate to me. I have 100% confidence she has ZERO true mechanical knowledge/training past what to say. She should have called the Tech to talk to me. Had that happened I would have set an appointment to have it replaced. But given the weak thermostat ($330) ghost diag, I had zero confidence about the rest of their work. Reminds me of "give a kid a hammer and everything looks like a nail".

Karns Motor - car_dealers - Updated October 2026

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