01
General Auto Repair & Maintenance
Complete repair and maintenance for cars and trucks, from everyday issues to the problems other shops can't figure out.
Fontana's Honest, Fair-Priced Mechanic
Straight Answers, Fair Prices, Real Fixes
Fontana's family-run auto shop for diagnostics, engine work, and repairs, done right, without the runaround.
4.3★
Google Rating
61
Google Reviews
17+ Years
Loyal Customers
Services
Everything we take on.
02
Engine Diagnostics & Computer Repair
Computer and electrical diagnostics to track down check-engine lights and issues other shops can't pin down, including fuel injection systems.
03
Engine Replacement
Full engine replacements handled with the same care as your own family's cars.
04
Used Vehicle Sales
Quality used vehicles sold with an honest look at their history — and if we don't have what you need, we'll help point you in the right direction.
Photos
A look around.
Honest Diagnoses And Fair Prices: No Runaround, Ever
Our story
Fontana's Straight-Talking Auto Shop
Cars don't break down on a schedule, and neither does trust. When customers bring us a problem nobody else could solve — from a stubborn fuel injection issue to a full engine replacement — we dig in until it's actually fixed, not just patched.
We built this shop on being upfront. That means telling you what's really wrong before we touch a wrench, quoting fair prices, and standing behind the work. It's why families keep coming back year after year, and why they send their friends our way.
Beyond repairs, we also help customers find a good used vehicle when it's time for something different — with an honest look at its history, not a sales pitch.
- Engine diagnostics & replacement
- Computer & fuel system repair
- Fair, upfront pricing
- Used vehicles with honest history
What customers say
“This place knows what they are doing! I have worked on my own projects my whole life and have even wired my own fuel injection systems. I had a personal car that stumped me and he figured it out pretty quickly! I was surprised to say the least. He also had very fair prices. I will definitely use him again.”
“Denise is a real stand up guy hands down. A man of many trades and many services. This guy has and does it all but most importantly is honest and truthful about everything he does sell or recommend. If you are ever in need of an honest and fair mechanic or even need a good used vehicle with honest vehicle accounts and history this is your guy.”
“My family has been happily taking our vehicles to see Dennis for almost 17 years. Best prices in town, he won't be beat! It's hard finding an honest and reliable mechanic these days, but look no further than Arredondos. They've done so much work on my cars, and recently replaced my engine on my 09 Camry.”
Get it booked.
Serving Fontana, CA.
(909) 355-9122
Get directions →15441 Merrill Ave, Fontana, CA 92335, USA
Hours
Open now- Monday
- 8:00 AM – 5:00 PM
- Tuesday
- 8:00 AM – 5:00 PM
- Wednesday
- 8:00 AM – 5:00 PM
- Thursday
- 8:00 AM – 5:00 PM
- Friday
- 8:00 AM – 5:00 PM
- Saturday
- Closed
- Sunday
- Closed
15441 Merrill Ave, Fontana, CA 92335, USA
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