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    Quality Auto Service

    4.5 (72 reviews)
    Open 8:00 am - 5:00 pm

    Services - Quality Auto Service

    Auto diagnosis or inspection

    Auto maintenance

    Auto repairs

    4 More Services

    Auto transmission repair

    Routine automotive maintenance

    Smog check

    Transmission leak inspection

    Quality Auto Service Photos

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    Recommended Reviews - Quality Auto Service

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    Matt S.

    Came in on a Monday afternoon to get my smog checked. I walked in and was helped right away by a gentleman named Mike. This was my first time getting a smog check and had no clue what to do, but Mike answered all of my questions and walked me through the process. Total cost was $50. It took 10 minutes, if not less, to get everything finished. I was able to renew my registration the next day across the street at AAA. My experience was 20/10 and I definitely recommend this shop!

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    6 years ago

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    7 years ago

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    14 years ago

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    10 years ago

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    14 years ago

    Mike does great work at a great price. Someone I absolutely trust with my vehicles.

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    10 years ago

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    Michael G.

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    14 years ago

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    14 years ago

    Mike knows his cars and took care of me and my Lotus. Really glad I found this place.

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    12 years ago

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    12 years ago

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    13 years ago

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    12 years ago

    Showed up at 750 in the morning and Mike took care of me right away. Got my smog quickly and made it to work on time!

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    12 years ago

    I enjoy going here. Every time my car has a problem I only choose mike. He does the best work I've ever seen.

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    12 years ago

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    10 years ago

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    12 years ago

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    11 years ago

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    8 years ago

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    10 years ago

    Quality Auto Service is amazing!! Not only Trust worthy and dependable but they go above and beyond!!

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    13 years ago

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    13 years ago

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    15 years ago

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    10 years ago

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    14 years ago

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    12 years ago

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    9 years ago

    Excellent and professional service. Needed a smog check. I was in and out in no time. Very pleased.

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    12 years ago

    Great auto repair shop, solved a problem that was difficult to diagnose. Wound up being simple.

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    10 years ago

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    14 years ago

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    13 years ago

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    12 years ago

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    Page 2 of 2

    Ask the Community - Quality Auto Service

    Review Highlights - Quality Auto Service

    After three unsuccessful trips to the Cadillac dealer, Mike was able to correct the problem in just a few hours.

    Mentioned in 26 reviews

    Read more highlights

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    Super Service of Pomona Valley

    Super Service of Pomona Valley

    4.6
    (700 reviews)

    My Pros: Paul was the main guy who I consulted with and he…read moreis overall very chill and cool guy (complimented my taste in music, thank you~). He has great customer service at the front desk and answered any questions and concerns I had. He offered a rental car or a free ride back home (which is the services they provide). The driver was very kind, friendly and safe driver. My car went in for diagnostics, after inspection, I gave a go to replace the clogged CAT. They gave me a very great inspection report, full with pictures and easy to read descriptions (I also very much like the 3D video explanations to which parts they are referring to). For now, it runs a lot smoother and I'm very happy with how my car runs (I haven't driven it long enough yet). I drive the most in my family, so it feels great to get things I need done now. :) My cons: I would say communication could be a little better. I had dropped my car off 5/29 and didn't get it back until 6/12. It's the longest I've ever had my car stay at a shop, and I will admit I was uncomfortable with how long it stood there. I did feel strung along the entire process, as I was told multiple different dates when my car should be finished. I had to call the shop a good number of times to get an update and I hate having to call to ask the same question over and over (felt like a kid on a road trip constantly asking "are we there yet?"). So, I'm not sure how their process goes about when taking in cars, if maybe they take a little too much than what they can handle time-wise or if maybe scheduling an appointment with them would make a difference? I didn't find out what the issue was until I had come in to pick up my car, to which I am very understanding that things happen, but I wish I was informed during the phone calls I had made. I'm aware of the excessive amount of problems there are with CAT's and they had informed me that the CAT's were being stolen during transport before they even reach the shop or customers (which is such an issue in itself, that ticks me off), so the shop had faced delay due to those circumstances that were not in their control. :) Overall: Pretty good and very kind set of guys that work there. Communication with the customer could be better, so I didn't have to feel left in the dark. Would prefer accurate finish dates and with explanation if there is ever delay (I did refuse a rental car in the beginning because I was told inspection would be done the following day if not till very early next week, but then a few days became 2 weeks) so, definitely want more accurate times to plan my days that I don't have a car. :)

    Very straightforward and good service, friendly staff and quick helpful support. Definitely would…read morerecommend

    Patrick's Auto Center

    Patrick's Auto Center

    4.7
    (382 reviews)

    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.

    Quantum Mobile Mechanic

    Quantum Mobile Mechanic

    4.8
    (166 reviews)

    Responded very fast and point out which issue I have…read more Unfortunately my issue was a major one they couldn't handle. I did some major research. But Thxs to them it made finding the issue and getting the parts easier and less headache for me. I highly recommend them for diagnostic and minor fixes. I would hit them up again for all my cars issue if I can't figure it out myself. The car is question was 2015 Chevy Tahoe misfiring Issue was map sensor and AFM

    I hired this mechanic to replace the cinching actuator on my Tesla. Immediately after he completed…read morethe work, my car began making loud, abnormal noises that never existed before. My door handles started making a loud squeaking/horn-like sound. When I opened my trunk, it sounded like it was malfunctioning or "dying." The same noise occurred when the trunk closed. When I opened my doors, the noise came from the trunk again. Even when I backed into my driveway and pressed the brakes, my car made a loud honking sound. All of these issues began after his repair. I contacted him immediately to let him know something was clearly wrong. Instead of taking responsibility or offering to inspect the problem, he became defensive and accused me of lying. He claimed the issues were preexisting and said I had tampered with my own car. He talked over me, became argumentative, threatened to cut business ties, said he would block my number, and abruptly hung up on me. He also blamed me for "self-diagnosing," even though I was simply describing the symptoms I was experiencing--something any customer would do. I hired him because he is the mechanic. It is literally his job to assess, diagnose, and fix problems. Instead, he refused accountability and demanded I pay him an additional $250 just to run a diagnostic to determine whether he caused the problems. Every reputable mechanic I've worked with in the past has stood behind their work. This one did not. He then sent me a disclosure form he wanted me to sign stating that I would only receive a partial refund if he decided the issues were his fault. I did not agree to this. When I didn't respond to his repeated messages, he texted again saying that after "some thought," he would now be willing to refund only a "portion" of what I paid. I paid him $350. When I declined to pay the additional $250 diagnostic fee, he argued with me and repeatedly stated that because I said no, I was "accepting that this is the end of the issue," then hung up on me. To document the abnormal noises, I opened and closed the liftgate several times. During this process, a panel that concealed the wiring fell off its hinges. A Tesla-certified mechanic later told me this was because the panel had not been screwed in correctly. I ultimately had to hire a Tesla-certified mechanic to fix what was done. Based on the symptoms I described over the phone, he immediately recognized that the wiring had been done incorrectly. When he inspected the vehicle, he confirmed that multiple connectors were improperly rewired, including the liftgate being wired into the speaker system and the trunk light being wired incorrectly. The horn was sounding as a warning that something was wrong. This was not only careless -- it was a safety concern. This mechanic was rude, dismissive, unprofessional, and completely unwilling to stand behind his work. Based on my experience, I would strongly caution Tesla owners and anyone with a modern vehicle against using his services. *** This is in response to Jane's response. PLEASE READ as this is very important. James claims he offered a "warranty check," AKA "diagnostic," but only if I paid him an additional $250 for his time. I declined. At that point, he repeatedly talked over me, read a disclaimer aloud without allowing me to respond, and ignored my polite requests to speak. He then told me he was "ending this relationship," said he would block my number, and abruptly hung up on me. He did not offer a full refund--only an unspecified portion of what I paid. I uploaded a photo of the revised invoice he sent after damaging my vehicle. In that invoice, he attempted to insert a disclaimer stating that I would accept a partial refund only after he decided whether he caused the damage. The document does not specify any refund amount. Had I signed it, I would have forfeited my right to a full refund. After my Yelp review, I sent James videos from a Tesla-certified mechanic explaining exactly what he did wrong. He incorrectly reattached the wiring, connecting the liftgate to the speaker system, which caused the loud horn noise. On a Tesla, this sound is a safety alert indicating faulty electrical connections. James presents himself as an honest professional. My experience was the opposite. I was spoken over, yelled at, threatened with being blocked, and treated with hostility when I simply asked questions about the damage done to my vehicle. I have never been treated this way by any business before. Based on both his conduct and the documented mechanical errors, James is not qualified to work on electric or modern vehicles. His behavior was unprofessional, aggressive, and manipulative. I strongly recommend that anyone with a newer or electric car take their business elsewhere. Quantum Mobile Mechanic is not on Better Business Bureau. I reported him to the BAR (California Bureau of Automotive Repair).***

    H Car Repair

    H Car Repair

    4.8
    (116 reviews)

    Last week my Granddaughter called and asked if I could go with her to the car dealership to have…read moreher car serviced. She has had trouble with the dealership in the past. I live in San Clemente and she lives in La Verne which is about 75 miles away for me, no problem I was at her home @ 8am. I explained to her that I used to have my vehicle serviced at H Car Repair and should give them a try. Ok Grandpa let's go she stated, about 7 minutes away arrived and I let her explain what service she needed and any problems she is experiencing. A very proud Grandpa as she spoke with the owner-manager of the shop. She and Dave agreed to have the work completed. So she and I went to have breakfast and enjoy each other's company which was wonderful to catch up. A couple of hours later her vehicle is ready, Dave brought in the parts replaced into the lobby showing my granddaughter and explaining in detail the process and cost. It was a win win overall H Car Repair has a new customer and Granddaughter now knows that she can go have her car serviced without being taken advantage of at a fair price. 5 STAR SERVICE GRANDPA HAS NOW DONE HIS JOB, THE LITTLE BIRD HAS LEARNED TO FLY ON HER OWN ! Don R.

    H car repair was recommended to me by a friend who has her car serviced several times…read more I went in and basically said I need a second opinion Dave, said no problem he looked it over and told me what was wrong with my Honda Accord. He dealt with the warranty Company and got things taken care of. Dave and his wife were friendly and kind to someone who was taken advantage of at the dealership. Thank you Dave and the H car repair team.

    Quality Auto Service - smog_check_stations - Updated July 2026

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