1. Roy's Transmission Service

0

Fullerton, CA

Roy's Transmission Service

4.8 (40 reviews)
Closed • 8:30 am - 5:00 pm

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Response time

2 hours

Response rate

100%

Services - Roy's Transmission Service

Auto brake repair

Auto engine repair

Roy's Transmission Service Photos

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Recommended Reviews - Roy's Transmission Service

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6 months ago

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11 months ago

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6 months ago

Frank was great, absolutely recommend Roy's transmissions. Rebuilt my 68 mustang c6 and so far great response

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1 year ago

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2 years ago

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11 months ago

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3 years ago

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4 years ago

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2 years ago

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2 years ago

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4 years ago

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4 years ago

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6 years ago

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6 years ago

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7 years ago

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6 years ago

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8 years ago

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4 years ago

He tells it like it is and he's very reliable. Finished before he initially said he would have my truck done! Definitely recommend

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6 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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5 years ago

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11 years ago

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6 years ago

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10 years ago

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13 years ago

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7 years ago

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7 years ago

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4 years ago

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11 years ago

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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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16 years ago

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14 years ago

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18 years ago

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Ask the Community - Roy's Transmission Service

Review Highlights - Roy's Transmission Service

“Frank is a very knowledgeable tech with many years experience in his field, besides being a great person.”

Mentioned in 25 reviews

Read more highlights

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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

(493 reviews)

5 stars Francis at Full Service Auto & Transmission Repairs…read morein La Mirada did a lot of work on my 2007 GMC Yukon XL and he nailed it. He replaced the radiator and water pump, repositioned the external transmission cooler, and replaced the tail housing gasket on the transmission. My truck has never run cooler transmission temps than it does now. Francis is very knowledgeable and actually understands how these older trucks heat up when you're towing or sitting in traffic. He explained what he was doing and why instead of just slapping parts on. If you need cooling or transmission work done right, take it to Francis.

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.

Frank's Auto Service

Frank's Auto Service

(257 reviews)

So incredibly happy and grateful to have found Frank and his team! I've been telling everyone who…read morewill stop and listen that they're amazing. 10/10 would recommend Frank's shop without hesitation. My car suddenly went into limp mode. The check engine light and several other lights came on. They disappeared after I stopped and restarted my car but I was frantic and didn't know what to do. When I called Frank's shop, he asked where I was and said I could stop by and they could do a quick diagnostic just to set my mind at ease before the weekend. Keep in mind this was just over an hour before they closed. Within half an hour, the problem had been diagnosed and fixed, and I was on my way. I still can't believe how quick and easy the whole experience was.

I have brought my girlfriend's SUV to Frank a few times in recent months and wanted to write an…read moreupdate. One visit was to troubleshoot the air conditioning, which was barely cool at best. I was hoping it just needed a Freon recharge. After checking the A/C system, Frank confirmed that the Freon was just low and everything else looked good. Luckily, her older car uses the newer, less expensive Freon. I just hung out while he recharged the system, and it was ready to go about 20 minutes later. The cost was only $150, money well spent to get ice cold air conditioning back. The most recent visit was to troubleshoot a service error code and ABS and brake warning lights. I was hoping this would just be a sensor on one of the wheels, but Frank said it looked like the main ABS ECU unit was faulty. Given the potential cost of the repair, it didn't make sense given the value of the car. I appreciated his honest opinion. He said there was no charge, but I still tipped him for his time because he always takes great care of me. I have tried a few other shops in the area over the years, and had initial good experiences. However, they all eventually gave me an estimate I knew as wrong, or didn't do work they said they did. I've been going to Frank ever since, and trust him 100%. If you need a top notch mechanic, Frank is your guy!

Roy's Transmission Service - autorepair - Updated October 2026

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