J4 Automotive
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J4 Automotive
We are your trusted auto repair shop for Lewis and Clark County, Jefferson County, and Broadwater County. We service all domestic and foreign makes and models with cutting-edge computer diagnostic equipment and software. We're happy to provide tire repair services and sales in and are proud to call it our home.

We also carry the most trusted tire brands in the industry like Hankook, Mastercraft, Cooper. Our tires will be competitively priced so that our local loyal customers and fleet accounts are confident knowing they have the right store. If you have any more questions about J4 Automotive please don't hesitate to contact us with any car repair, automotive repair, fleet or tire questions.
Services
All Technicians are ASE Master Certified Automotive Mechanics with additional advanced certifications, To find out more about ASE certification visit www.ase.com. On going training and equipment upgrades keep us current and your repairs done right! Two of our techs have Bachelor's degrees and two have Associates Degrees in Automotive Technology.
In 1994, Kit Johnson and his wife, Viola, hung out their shingle and started to live a life long dream: running a self made, self employed business. J4 Automotive is named for the four Johnsons: Kit, Vi, and their two daughters, Nikita and Kacy. The business was started in their garage at home until Kit and Vi were able to arrange financing with the SBA, Valley Bank and a family friend.
Your vehicle's owner's manual has an entire section devoted to maintaining your vehicle with preventative maintenance. Their recommendations are not to be taken lightly. If you want 200,000 miles or more from your vehicle then we strongly recommend you follow these service recommendations. In Montana (like most areas of the country) we fall in the Severe Service category for maintenance intervals, so be sure to use that chart.
J4 Automotive guarantees high quality diagnosis and repair. Our staff is highly trained and we prove our dedication to you by certifying our technicians and service advisors with the National Institute for Automotive Service Excellence. Several of our technicians are certified ASE Master Technicians and hold the advanced engine performance L1 certificate.
From complete cab-off engine replacements like the one above on a 6.0 Liter Ford, to maintenance and fluid services, we keep your expensive light duty GM, Ram or Ford diesel purring. Fluid maintenance for long life reliability such as gear boxes, coolant and transmission fluids, power steering and brake fluids, plus more.
Reviews (13)
Joy B.
Joy B.
Dec 12, 2021
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Ryan was especially helpful in doing some diagnostics on my vehicle prior to me handing the keys over. It turns out I didn't have an issue after all. He even went out of his way to check under the hood for anything out of the ordinary. Oh and it was cold outside and he stood outside and checked instead of making me wait for them to take it inside.
Playballdr I.
Playballdr I.
Oct 15, 2021
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Called for an estimate 4 days ago. i called him back and they said they were busy and would call me with an estimate. they never did. will not call him or try to use him again.
Molly Collins
Molly Collins
Aug 30, 2021
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Fabulous people! I needed to get a pre-purchase inspection on a car that I was buying ASAP!! I was started to loose hope that any mechanic wasn't 2 weeks out but I called these guys and they were able to take me THAT DAY! They were so sweet and gave me a full 12 page print out all about this car that I was going to buy! If I lived in Helena, I would 100% use this mechanic and these guys, I so highly recommend them!
Michaela Bromberek
Michaela Bromberek
Aug 04, 2021
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I had all positive experiences at J4 automotive until recently. I was quoted $700 dollars for a front break job which after calling several other businesses in Helena I soon found was a giant rip off. I was also supposed to get tires here and my appointment needed to be rescheduled because they didn’t come in yet, I came in for the rescheduled appointment only to find out they still didn’t have my tires. I was supposed to hear from them once they got my tires but it’s been weeks and I haven’t heard from then since.
M. Skinner
M. Skinner
Jun 28, 2021
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This business is top notch. From the time you make an appointment to paying. Our first encounter with J4 was about 3 yrs ago. They gave us a second opinion on an F150 issue. Helena Motors wanted to charge 1200.00 and J4 charged around 400.00 That is quite a difference for the same repairs. We have not used anyone else's services. The place is clean and the workers super nice.
Clifford Scott
Clifford Scott
Jun 01, 2021
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Kit, Chris, and all the guys at J4 Automotive in East Helena did a great job! I dropped off our 06’ Expedition that had been sitting for almost 2 years! I told them to go through the vehicle, front to back because we were going to give it to our daughter to drive for school. I told them that I wanted to make sure she would be safe while driving it! Kit, Chris, and the guys in the shop took that info to heart! They went through everything on the vehicle!! We got the vehicle back and it runs, sounds, and drives awesomely!! Better than it ever has, actually!! Thank You guys for a job well done!
Meg Ginger
Meg Ginger
Mar 20, 2021
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J4 always does excellent work on our vehicle. Prompt call back, fair pricing, and all around great customer service! Thanks J4!
Joseph Canzona Jr
Joseph Canzona Jr
Feb 22, 2021
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These guys fix it right the first time. They are on the spendy side, but it's because you likely won't have to bring your car back again. They fixed my Mazda 9, which had an almost impossible fix to it. Smart, reliable, and determined.
Karin Meinkoth
Karin Meinkoth
Jul 28, 2020
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Wow! They were great. Kind, honest, no BS, great price. I wish I lived closer to Helena because I would take my car there every time I needed anything!
My radiator cracked and left me on the side of the highway. Gena and Zack and crew had me back on the road within a matter of hours! It was incredible. Thank you guys for everything. - Karin
Annomous P.
Annomous P.
Jun 11, 2020
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I had many bad experiences at shops around town and decided to give J4 a try. It's 5 times the distance for me but totally worth it. J4 is the best place you can take your car! Only good experiences and would recommend for any car maintenance.
John P.
John P.
Aug 13, 2019
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We were getting our motor home ready for a weekend at Rockin' the Rivers. When I checked the lights we didn't have signals or brake lights. This was not good as we had our tickets and campsite already paid for. I drove to J4 and asked if they could take a look at the problem. Gena told me to bring it in so I did. Chris called about an hour or so later and said his technician had found a blown fuse but still no brake lights. I told Chris that the rear trailer towing receptacle had broken and I bagged it and zip tied it to the vehicle. They took a look at that and found that wires had crossed
Sara H.
Sara H.
Feb 07, 2019
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We were on a long road trip and our Yukon broke down in Helena. We took it to J4 at 9am and it was fixed by 11am. Everyone was incredibly nice and helpful. They went out of their way to fix our car quickly. I highly recommend this shop!
Florence J.
Florence J.
Mar 06, 2017
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We've taken our vehicles here for a decade from oil changes to major repair. We live an hour away, so appreciate the shuttle to still get things done in town while our cars are worked on.