Don’t Ignore That Check Engine Light
Expert engine diagnostics and repair services in Great Falls, MT—accurate, honest, and backed by warranty.
That warning light isn’t just a nuisance—it’s your car asking for help. Whether you’re dealing with strange noises, rough idling, power loss, or a dreaded check engine light, we are your local source for reliable engine diagnostics and repair.
Advanced Engine Diagnostics
Certified Techs. Dealership-Level Tools.
Minor to Major Engine Repairs
Transparent Estimates. Zero Pressure.
Backed by Warranty
“My check engine light came on out of nowhere. North Star found the issue (a bad sensor), fixed it fast, and saved me from a dealer bill. Super professional.”
— Cody P.
“The engine was misfiring badly. They diagnosed it in under an hour, explained everything, and had it running like new the next day. Highly recommend!”
— Mia S.
“They don’t just guess. They found a vacuum leak that two other shops missed. Honest, smart, and fast.”
— Tom R.
Fast, accurate answers. No-obligation quote.
From spark plugs and coil packs to head gaskets and timing chains—we do it all.
Our Location:
344 Vaughn S. Frontage Rd, Great Falls, MT 59404
Monday-Friday: 8:00 AM - 5:00 PM
