Welcome to J-N-J Auto Service

Our team is passionate about cars, but even more passionate about helping people

Who Are We?

Experienced Technicians Dedicated to Quality Automotive Service

Family-Owned, Community-Driven, and Built on Trust

At J-N-J Auto Service, we believe that quality auto repair starts with integrity. As a family-owned and locally operated shop in Phoenix, AZ, we’ve built our reputation on providing honest service, fair pricing, and reliable workmanship for every customer. Our ASE-certified technicians bring years of hands-on experience and technical expertise to every repair, ensuring your vehicle is serviced with precision and care.


We handle everything from routine maintenance to complex engine and electrical repairs, using the latest diagnostic equipment and high-quality parts for dependable results. What truly sets us apart is our personal touch—we treat every customer like family and every car as if it were our own. Backed by a 12-month/12,000-mile warranty, we stand behind our work and our word.



At J-N-J Auto Service, we’re proud to be part of the Phoenix community, helping drivers stay safe, confident, and on the road with service they can trust. Whether you’re here for an oil change, brake repair, or fleet maintenance, you’ll always receive the same commitment to quality and customer care that defines who we are.

Need Reassurance?

Car Repair Testimonials That Speak for Themselves

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5-star review by Melissa F.

"Honest, trustworthy, and good at what they do! So very thankful to have been referred to Jim and his team. They communicate and genuinely get to the bottom of what’s going on without charging excessively. Hard to find in this industry. They will be taking care of  my vehicle from now on."
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5-star review by KelsiJo Wayman

"the kindest people! omar is the greatest he is always so friendly, answers all my questions in a way I understand and really takes the time to make sure everything is fixed before giving my car back. the owners really care about their shop and take the time to show they care. amazing place! I will always take my car here"

5-star review by Danniel Keyley

"I felt my trucks front end was needing some attention. And realized it needed immediate attention when I saw the right front tire was starting to wear a hole in the fender well. The turnaround was less than 24 hours, price very reasonable. I've been using J-N-J Auto Service for a while now. They are my shop of choice. My truck is riding as it should once again."

5-star review by Raquel Vazques

"I took my Jeep Wrangler for tire alignment, and they did not disappoint .

5-star review by Pamela Jenson

"I called at about 11am for an oil change. They said come right in. I did. And an hour later I was on my way home. They were very friendly and reasonably priced. I will go there again. It was clean and I could watch my truck being worked on in the bay on the TV in the waiting room. I will recommend this place to everyone."

5-star review by Melissa F.

"Honest, trustworthy, and good at what they do! So very thankful to have been referred to Jim and his team. They communicate and genuinely get to the bottom of what’s going on without charging excessively. Hard to find in this industry. They will be taking care of  my vehicle from now on."

Looking for auto service nearby?

Our Community Coverage

Dedicated Auto repair Services for Phoenix, AZ and Surrounding Towns

  • Avondale
  • Buckeye
  • Cave Creek
  • Chandler
  • El Mirage
  • Fountain Hills
  • Gila Bend
  • Glendale
  • Goodyear
  • Guadalupe
  • Laveen
  • Litchfield Park
  • Mesa
  • New River
  • Paradise Valley
  • Peoria