Fountain Valley Tire & Auto
“Very professional, respectful to seniors, on time and did all they said they would do!”
Best Car Tune-Up in Fountain Valley, CA
10 technicians listed · 8 in Fountain Valley · 9 open weekends · all 10 rated 4.5+
Data verified October 16, 2026
Jacks German Auto Service
“We have been servicing our Audis here since a couple of years and always happy.”
Concept III
“Super happy with how I got my car back and will forsure always be coming back here if I need something!”
San Juan Automotive
“Very helpful and did a good job at fixing my car issue.”
OC Hybrid Tech
“Got the new Cat Shield and spark plugs done less than a hour.”
Pro Auto Repair
“The best mechanical workshop I have ever been to, they are all very honest, not that in other places you go for one thing and it turns out that it is something else that they put in and your car doesn't look good.”
Listed for drivers in and around Fountain Valley, CA, these 10 shops handle tune-up work and running faults. What each one says about diagnostics, warranties and service specials comes from its own website; ratings and quotes come from public reviews.
Area overview: Fountain Valley, CA
Of the 10 technicians we list here, 8 are in Fountain Valley itself and 2 come from Santa Fe Springs (1, 17 mi) and Whittier (1, 18 mi). The technicians on this page are rated from 4.5 to 5.0 across 1,407 reviews; 5 have 50 or more reviews. 9 are open on Saturdays. 1 lists staff certifications (ASE) and 4 have a BBB rating of A or A+. 9 have ten or more years of experience, the longest 37 years. 1 offers financing; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 6 of the technicians on this page; 3 publish a contact page and 3 list a public email. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Which shops listed for Fountain Valley open on Saturdays or Sundays?
9 of the 10 shops here show Saturday or Sunday hours. Plugs and filters fit neatly into a Saturday. A chase for an intermittent misfire does not, since it can need the car overnight to catch the fault happening from cold.
LD Smog & Repair
“Duy is the best mechanic around!”
MG Auto Repair
“Very good work and Arturo very kind, I paid little, I recommend it”
Orange County Auto Repair Shop
“This place is great i would definitely recommend them.”
C & D Automotive
“Dan is the primary mechanic, honest, and has been great with my car.”
Why these companies made our list
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