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    David's Auto Tech

    4.9 (56 reviews)
    Open 8:00 am - 6:00 pm
    Updated 1 month ago

    Services - David's Auto Tech

    Auto diagnosis or inspection

    Auto maintenance

    Oil changes

    11 More Services

    Auto repairs

    Auto battery or electrical system repair

    Auto brake repair

    Auto engine repair

    Auto HVAC repair

    Auto light repair

    Auto steering and suspension repair

    Auto transmission repair

    Auto wheel and tire repair

    Routine automotive maintenance

    Transmission leak inspection

    David's Auto Tech Photos

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    Recommended Reviews - David's Auto Tech

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    6 months ago

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    8 months ago

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    3 years ago

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    3 years ago

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    3 years ago

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    4 years ago

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    3 years ago

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    2 years ago

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    3 years ago

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    3 years ago

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    6 years ago

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    3 years ago

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    4 years ago

    Dave and his team of mechanics are knowledgeable and honest. It's a rarity to find quality work done at such reasonable prices.

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    4 years ago

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    5 years ago

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    4 years ago

    Took one of my old cars here, when I was referred by a friend. Prices are beyond reasonable and his work is great

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    3 years ago

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    4 years ago

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    6 years ago

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    5 years ago

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    12 years ago

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    8 years ago

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    4 years ago

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    7 years ago

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    6 years ago

    David, thank you so much for fixing my ac today and appreciate the great service. Honest and wonderful shop!

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    4 years ago

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    4 years ago

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    7 years ago

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    9 years ago

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    7 years ago

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    6 years ago

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    10 years ago

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    7 years ago

    Very responsible mechanic he takes care of my cars and always willing to accommodate your needs.

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    11 years ago

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    5 years ago

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    5 years ago

    I have been coming to David since I was in HS...15+ years now. He has always been fair and trustworthy. I highly recommend him.

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    8 years ago

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    Review Highlights - David's Auto Tech

    David is an old school, honest, and kind auto mechanic and owner.

    Mentioned in 5 reviews

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    Hye-Tech Auto Repair

    Hye-Tech Auto Repair

    (351 reviews)

    Our family's Ford Explorer required a water pump replacement…read more I visited several local auto shops to obtain quotes and was shocked, disappointed, and discouraged at the prices I was being quoted for the work my vehicle required ($5,000-$7,500) Shame on me for not reading Yelp reviews before wasting my time visiting other auto shops. I read the many positive reviews for Hye-Tech Auto Repair and decided to visit them. Upon entering, I was greeted by John (owner) with a friendly, "Welcome, how may I help you?" I explained that my Ford Explorer needed a new water pump and a few other items that other auto shops had advised me would require repair or replacement. While John looked up a few items on the computer to provide me with a quote, he introduced me to his son, Harry, who happened to be in the office. Thirty seconds later, John provided a quote that was $3,500-$4,000 less than the other shops. I could not believe it. John explained that he makes his living and succeeds in his business through repeat customers, and he does not believe in gouging customers for every last penny. He also shared that when he retires, his son Harry will take over the business, and he wants to leave Harry with a solid foundation of loyal repeat customers. It was then that I knew I could trust John and his son Harry. John went on to explain that replacing the water pump on a Ford Explorer was a 10-12 hour job, as it was an internal pump requiring numerous engine parts to be removed to reach it. This was the same thing all the other shops advised me. John suggested that I leave my vehicle, and he would perform a full inspection of the engine and contact me before doing anything to it. I agreed and left my vehicle. The following day, I was contacted by John, who advised me that the water pump did indeed need to be replaced, as it was the source of the constant leaks of the water coolant. I left my vehicle in John's shop for three days. During this time, John or his son, Harry, contacted me numerous times to keep me updated on the progress of my vehicle and also to point out that mechanics had discovered two or three very inexpensive items (under $50.00) which they recommended replacing, which I agreed to have done. All in all, I was and am extremely impressed and satisfied with everything about this shop. I spent much less money to have five different issues repaired on my vehicle at Hye-Tech than what I was quoted to replace my water pump alone by every single shop I visited prior to coming to Hye-Tech. John and Harry are very friendly, honest, and trustworthy. They are also very knowledgeable and experienced, and they offer GREAT customer service and communication. This is my new go-to shop for any issues involving our family vehicles. Thank you, Hye-Tech Auto Repair, for a very positive experience.

    I opened a Yelp project to try to get my transmission serviced. The dealership wanted to charge me…read more$1300 for this service. Yelp projects are one of the best things I've ever experienced. It's nice to see you can get quotes at the touch of a button on your phone. This morning, I had time off, so I headed in to get my service done. I did not have an appointment and that did not seem to matter. I arrived first thing in the morning at 8 AM and ask if the service could be done. Harry was an exceptional young man, he took me in with no problems, no questions. He said they could do it this morning. I told him I would have to wait. He had no problem with that either. Prior to bring in the car in this morning, as I said, I used a yelp project and had several people reach out and give me quotes. After looking at all the yelp reviews I decided to give this place a try. I am super happy that I did. This place is a hidden gem, excellence, service, quality, and value for what you receive. There are not very many shops where you could feel comfortable and put your trust in them. As I spent time in the lobby, I was able to see customer service on the phone and customer service entering the facility. Every customer that walked in, seem satisfied and was treated with dignity and respect. I highly recommend this place if you have any automotive questions whatsoever.

    TMC Auto Repair

    TMC Auto Repair

    (193 reviews)

    2018 WRX "UPDATE"... After the leaking issues on the motor rebuild…read more I brought the car back. Martin went above and beyond to fix multiple leaks that came about from the rebuild. I trusted Martin to fix everything and make things right. Martin will do whatever it takes to make this right and have a satisfied customer. I had to have patience and it paid off! The car feels and drives like how it used too! Martin's character to makes things right is why people should come to his shop. He will help out to the best of his abilities to make the customers satisfied. Thank you Martin!!

    5 Stars - TMC Auto Repair in Diamond Bar (aka the place that actually gives a damn)…read more Let me paint you a quick "before and after" picture so funny it hurts: Scene 1: Midas in Diamond Bar, 3:50 PM I roll up with a driver's window that's basically on permanent vacation (stuck halfway like it's trying to ghost me). The guy behind the counter doesn't even glance at the car. Doesn't ask a question. Just grunts, "Yeah, it's the motor." Me: "Cool, wanna pop the door panel and confirm? I'll pay for the diag, takes 10-15 minutes tops." Him: refuses to move, refuses to look, basically treats me like I'm trying to sell him oceanfront property in Arizona. I left wondering if "customer service" is now Latin for "get lost." Scene 2: TMC Auto Repair (literally two minutes away, same day) I used to go to this shop years ago when it had a different name. Now it's TMC and let me tell you -- it should be called TLC because that's exactly what they give you. Walked in frustrated and Martin greeted me like a human being who mattered. He listened to my Midas horror story, laughed with me (not at me), and said, "Let's actually look at it." One of his techs pulled the door panel in like 8 minutes and... drumroll... the motor was bad and there was a broken plastic piece in the regulator (exactly what I told Midas Guy, who apparently moonlights as a psychic but forgot to charge his crystal ball). They got the window temporarily working until the new part arrives, didn't overcharge me, and treated me like I've been their customer for a decade (because I basically have). Moral of the story: Midas Diamond Bar just lost a customer for life in under five minutes. TMC gained a customer for life in under five minutes. Martin and his crew are professional, honest, fast, and actually enjoy fixing cars instead of playing "guess the problem from the lobby." If you're anywhere near Diamond Bar/Walnut area and need work done by people who treat you like family (the good kind, not the dysfunctional Thanksgiving kind), go see these guys. 10/10, will be back the second that part shows up -- and for every oil change, brake job, and random rattle from now until my car retires. TMC, you have my undying loyalty... and my window now goes up AND down. Magic. Show less

    David's Auto Tech - autorepair - Updated May 2026

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