Jacks German Auto Service
“Henry has been awesome at diagnosing my newest Mercedes and has coordinated with dealer on necessary recalls that I had not been advised of by Mercedes Benz.”
Best Transmission Repair Shops in Fountain Valley, CA
10 mechanics listed · 6 in Fountain Valley · 8 open weekends · all 10 rated 4.5+
Data verified October 16, 2026
San Juan Automotive
“And I really received great service and my vehicle is running better than its bren in a long time.”
OC Hybrid Tech
“Got the new Cat Shield and spark plugs done less than a hour.”
Eurotech Motorsports
“Very helpful, tons of info about cars, very affortable and will come back again”
Pro Auto Repair
“Harbor Blvd, excellent and reliable automotive mechanics.”
LD Smog & Repair
“Super helpful with great advice and very knowledgeable.”
Listed for drivers in and around Fountain Valley, CA, these 10 shops work on transmissions. What each one says about rebuilds, warranty terms and the brands it handles comes from its own website; ratings and quotes come from public reviews.
Area overview: Fountain Valley, CA
Of the 10 mechanics we list here, 6 are in Fountain Valley itself and 4 come from Whittier (2, 18 mi) and Walnut (2, 21 mi). The mechanics on this page are rated from 4.5 to 5.0 across 478 reviews; 4 have 50 or more reviews. 8 are open on Saturdays. 1 lists staff certifications (ASE) and 3 have a BBB rating of A or A+. 7 have ten or more years of experience, the longest 37 years. 1 gives free estimates and 1 is family- or locally-owned. We have a website on file for 7 of the mechanics on this page; 3 publish a contact page and 2 list a public email. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Do years in business matter for transmission work?
Ten or more years in business is claimed by 7 of the 10 shops here. Rebuild quality is hands-on skill, and a shop that has been in one place a long time is easier to hold to a warranty. It is what their listings state, not a guarantee.
Whittier Auto Tire Center
“He replaced all the bent parts then put it on the alignment machine and the car drives perfectly again.”
Universal Auto Care Inc
“Gumi does great work been going to him since he was in Hacienda Heights.”
MG Auto Repair
“He used quality parts, backed the quality of his work by providing a warranty on labor and parts and went the extra mile in showing me the removed parts and why they had failed”
Orange County Auto Repair Shop
“Joaquin and Raul are great they always treat us right.”
Why these companies made our list
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