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.

Excellent and HONEST mechanics. This is my 2nd time here. My son took his 2003 Honda Accord here at…read moremy urging (4/29/2026). It was misfiring and running awful. David was involved and checked the car out. I was very nervous about what was going to be found since prior to his taking the car there, I checked his oil level and it was nearly empty! I feared he destroyed the engine. The car was checked out and much to my relief it was determined to be a bad ignition coil! Very reasonable price to repair! I was overjoyed! David also made some other very useful suggestions and recommended we replace the battery, which we did. So why am I taking the time to write this? Simple. I want everyone to know it is so refreshing to find a reputable auto mechanic that will not clean you out with unnecessary repairs, that's why! I highly recommend using them. I sure will and you should too!

I called different auto shops to get my tire patched up due to some puncture hole from a nail…read more David was accommodating and patient on the phone. I think I had to call him a few times since I kept changing my mind on what time to bring my car! Also, their pricing is the most honest and fair. We went to their second location which they recently acquired, David and his team were so nice and professional, and the job was quick and efficient. Thank you again!

After 2 weeks of my jeep making noise and vibrating really bad everybody had a different opinion. I…read moretook it to Harrells transmission he drove it around the block and diagnosed it to be the transmission I dropped it off Monday and picked it on Wednesday runs perfect and no vibrations. Great job

We just had the Transmission rebuilt on our 2014 Chevrolet Traverse. The transmission came out…read moreperfect and it's like driving a new car. As a life long mechanic, I immediately noticed how clean and organized their shop is. Mike and his technicians are knowledgeable and friendly. They are highly recommended by many friends.

Great experience so far! Had my transmission rebuilt and serviced here and my suburban has been…read morerunning like a champ. I am very happy with the service, the owner is honest. I would recommend this place to anybody especially my family and friends.

Took my car in for a transmission leak, the work got done quickly, but after about a week the leak…read morewas back. After calling back and trying to set up a time to get the car serviced again is where I started running into problems, it seems like they're always busy, which is great for them but as someone who works during the day, it's makes things difficult. They could care less about accommodating you in anyway, you have to just show up first thing in the morning and just hope they have space to take your car in. Really wanted to utilize their services since they were recommended by a local shop that I trust but feeling the need to bend over backwards just to get my car looked at is a headache that just isn't worth it

Just an update. 255k and over 60k miles since I put transmission in about over six years ago…read more Transmission is running well still and it's given me confidence to spend more money on this , now , 19 year old car. I updated the front suspension and the cars like new. Thanks kyu. The best transmission specialist ever.

Is this shop still in business? My husband and I had a great…read moreexperience getting a transmission rebuilt here a few years ago, but now that it's time for it to be serviced, we can't get ahold of anyone to schedule an appointment. We've called many times over the last few weeks - no one answers the phone or calls back, and no one has responded to messages left through the website. Please reach out to me!

If you're looking for a good mechanic that will give you fair price this is the place to go for…read moreyour car services and oil change

Beware. Young's is definitely not what it used to be since its sale. Mark was honest.read more

I've been doing business with Ricardo over 15 years. Can't believe I haven't left a review. I own a…read moremechanic shop in San Bernardino, Car doctors and Transmasters has been doing our transmissions for a very very long time. Well over 25 transmissions a year. We have never had a customer come back due to lack of workmanship. Ricardo is very professional, polite and extremely helpful!! His prices are way better than any transmission shop within a 30 mile radius of us. We have tried many shop and keep coming back to Ricardo!! Thank you Ricardo for the amazing work! We love you!! Always delivers on time as promised and the quality of work is by far exceptional!! We will continue to use transmasters as long as Ricardo is there!! THANK YOU RICARDO!! from your friends at Car Doctors.

BEWARE!!! I wish I could give no such stars or negative stars for this place! I took my truck here…read morefor an inspection and quote for a leak I had in my transmission. My truck had a FULL tank of gas when it was dropped off; 387 miles to be exact. When I picked it up after they quoted I needed a whole new transmission built, not only did two workers ask me if I wanted to sell my truck, the owner himself even asked me if I wanted to sell BUT that's NOT the worse part!!!! My truck only had 82 miles left in the tank!!! This shop drove my truck 300 miles with a messed up transmission!! They not only took my truck for a joy ride and used for their own personal errands, they caused more damage to my engine that ended up costing me WAY more money!!! DO NOT TRUST THESE GUYS!!! VERY SHADY SHOP!!! P.S Go to Harrell's on arrow hwy! See Mike. He's honest and does an AMAZING JOB! Leak was fixed and transmission did NOT need a whole new rebuild but did need some major work.

My car needed both low beams replaced, an oil change and a tune up. Matt was quick to provide me…read morewith a quote that was reasonable. Scheduling the appointment was easy. Brought my car in, went over some paperwork and was told I'd be contacted once the inspection was complete. Sure enough Matt called me to let me know there were some items found during inspection and which ones needed to be addressed right away. After agreeing to the updated quote they got to work. I came back to the shop prior to being told my car was ready, and I think there may have been a delay in getting parts needed (dropped the car off at 9am, wasn't done until 4pm). Other than that, the quoted price is what I paid, there wasn't any pushing to buy a service that wasn't needed. I will definitely be bringing my car back for the additional work needed.

I requested a quote through Yelp and my request was sent to multiple auto shops. I chose this…read morecompany based on location and called ahead to confirm they could do more than just read basic codes. I had already done my own diagnostics and knew the car was running rich. I had ruled out the upstream O2 sensor, catalytic converter (both new), MAP sensor, and fuel injectors. I explained all of this to Matt before bringing the car in. He assured me they could perform deeper diagnostics with their equipment. After dropping off the car, Matt called and told me they had "confirmed" exactly what I had already told them, and that the next step would be pulling spark plugs--for an additional fee. At that point, I decided to go elsewhere. What I don't understand is why I was still charged the full $85 diagnostic fee, plus a $4 hazardous materials fee and $3 shop supply fee. Plugging a car into a diagnostic scanner does not generate any hazardous waste--no fluids are drained, no chemicals are used, and no parts are replaced. There's nothing about a basic scan that would justify a hazardous materials charge. That kind of fee typically applies when disposing of things like oil, coolant, or other regulated waste, none of which occurred here. In the end, I paid $92, wasted time and gas, and learned nothing new. The most concerning part was Matt admitting he didn't even know spark plugs would need to be checked as part of further diagnosis.

I called around to several shops nobody responded, I drive a 2009 GMCSierra 1500 with 159,000 miles…read moreon the original transmission I've had it flushed every 60k but have never replaced the filter, Andy called me back from AAMCO transmission in Covina off arrow hwy he was very professional which sold me on the job, I asked. If I could see the magnet at the bottom of the pan, I was impressed for having that many miles on it very little materials were stuck to the magnet, we ended up this time around replacing the filter, pan gasket and 5 quarts of fluid, so far so good, I will definitely go back and see Andy for any transmission service or repair. AAMCO you have yourself a new customer as long as Andy is employed with your company he is a real asset to your shop, I myself is a retired automotive award of excellence National honoree with Infiniti, honesty is the key,keep up the great job Andy

I came here a couple weeks ago called same day for seen . Diagnosed my car and fix the problem all…read morewithin two hours. They really helped me a lot having car issues is a headache but they made it so easy for me definitely recommend this place .

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