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    Parallel Performance

    5.0 (3 reviews)
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    Services - Parallel Performance

    Check engine light

    Engine oil light diagnosis

    Auto general diagnosis

    10 More Services

    Auto noise diagnosis

    Auto no-start diagnosis

    Auto vibration diagnosis

    Auto diagnosis or inspection

    Auto maintenance

    Oil changes

    Auto repairs

    Auto battery or electrical system repair

    Auto transmission repair

    Transmission leak inspection

    Parallel Performance Photos

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    Recommended Reviews - Parallel Performance

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    22 days ago

    Requested a quote for an oil change & got me in asap!! Good service & done in a timely manner. I would 100% recommend this shop.

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    1 month ago

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    4 months ago

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    Downey Car Care Center

    Downey Car Care Center

    (830 reviews)

    I would like to commend the staff here for doing all the work they do, and in busy situations…read more Please forgive my misspelling, I want to thank Iseah who talked to on the phone. I want to thank Jay who helped people the day I went. The facility was clean and organized, so I felt very comfortable about coming here. They are next to car wash and a gas station. Also, Stonewood Mall is across the way too. The had coffee and snacks, I loved that they had Kirkland coffee pods, oh heck yea. The waiting area is not huge but enough. Jay was very knowledgeable and helpful; I overheard him helping people out. As far as value, I felt I got a good value, as I was shopping around. I was given a time estimate, and a time estimate if I wanted additional service and they were very good about meeting that. I got a free car wash at the was station next door, full service, and they did a great wash. I am already planning my next visit with them. I will update review in the future.

    I asked for an oil change and air filter check. The car after returned was making an odd noise…read morewhen the A\C was turned on. We checked the air filter and out popped a partially torn paper with instructions how to change the filter... I've been going here for many years because it's close to where I live. They have made other mistakes like forgetting to plug in my rear view lights again after replacing bulb. They couldn't fix my old sonata either and the check engine light returned 3 times when promised it was fixed. I thought easy jobs was okay to trust this place, but I was wrong. Only bring your car here if you want a high chance of screw ups on your car.

    Full Service Auto & Transmission Repairs - My engine had several leaks and was absolutely filthy and within a week I had a brand new looking engine and no leaks.

    Full Service Auto & Transmission Repairs

    (477 reviews)

    1/29/26 Thursday - Called here the day before for a quote on an oil change and I was greeted by…read moreFrancis (owner) who promptly gave me a fair price. He answered all my questions without sounding dismissive. So this morning, I came to get the oil change. When you first pull up to the business plaza, you have to drive to the back lot and they are located at "3D" Before I came, Francis kindly sent me a photo of his shop via text so it would be easier to find. The office itself was small, and unassuming, Free Wifi was available which was nice. Met Francis and he was just a stand-up dude. His mechanic took my keys and got the job done in less than 15 mins. Can't really ask for more than that. A+ I will definitely be returning

    On April 3, 2026, I dropped my car off at Full Service Auto & Transmission Repairs for what should…read morehave been a simple repair -- replacing the skid plate. I found Francis through an online search because of the many positive reviews, and during our first interaction he was friendly, professional, and seemed very knowledgeable. He ordered the part directly from Acura and quoted me a fair price. My car was ready the following day, but when I arrived to pick it up, Francis informed me that my vehicle had been involved in an accident while in his care. He explained that another driver had been speeding through the parking lot and crashed into him. He gave me the other driver's information, and I contacted him immediately. The other driver gave a very different version of events. He stated that he was backing out of a parking space and did not see Francis. He also told me that Francis provided his driver's license information but refused to share insurance information. Now, more than a month later, I still have a damaged vehicle and have not received insurance information from Francis despite multiple phone calls, text messages, and outreach from Mercury Insurance. I trusted this shop to take care of my car, not return it to me in worse condition and leave me responsible for a $500 deductible. What has been most disappointing is the lack of accountability and urgency. Francis acted as though this situation was not a major concern and repeatedly assured me that the other driver would "take care of it," which has not happened. According to the other driver, Francis even asked him to change the story about what happened. I chose this business because of its strong reviews and the image Francis presents, but my experience has been extremely stressful and disappointing. I believe customers deserve honesty, transparency, and responsibility when their vehicle is in someone else's care.

    California Transmission

    California Transmission

    (128 reviews)

    I was a bit hesitant about writing this review, but after one last phone call with Israel (manger),…read moreit feel obligated to let people know. I had a very disappointing experience with California Transmission. I came in looking to swap Chevy Astro transmission and the high selling point with California transmission would be completed in a one day turnaround. However, unfortunately, I found myself having to call the shop multiple times for an update, and we're constantly hesitant to update me. In the end up having to wait three days to get my vehicle To make matters worse, they failed to properly reconnect my oil dipstick to the engine block, which is a basic but critical oversight. I know that mistakes are common, however, granted to the fact that Israel emphasize how professional they are 25 years of experience, I am surprised something like that went unnoticed so I went ahead and give them a call today and after the vulgar conversation, he gave me I decided that I ultimately had a write a review. Overall, the lack of professionalism and attention to detail makes it hard to recommend this shop. I will provide photos below to show that I am a true customer and not a fake reviewer.

    I had a really disappointing experience with this shop. I took my vehicle in to fix a transmission…read moreissue, which they did address. However, after the repair, my reverse lights stopped working. When I asked them to check it out--whether it was an electrical problem or a transmission switch issue--they completely blew me off and walked away. No help, no follow-up. I would not recommend this place if you need reliable service or respect for your concerns.

    Parallel Performance - autorepair - Updated May 2026

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