Mon - Fri: 8:00 AM - 5:30 PM
Saginaw(989) 781-2007
Mon - Fri: 8:00 AM - 5:30 PM

Engine Diagnostics in Holly and Saginaw, MI

Air Filters Replacement

There's nothing worse than looking down and realizing that your check engine light is on. For Holly and Saginaw, MI engine diagnostics, there is no better place than Armstead Automotive Repair. Since 1986, Armstead Automotive  Repair has prided themselves on providing high-quality, precision automotive care.

We have the state of the art Diagnostic equipment, manufacturer specific scan tools or laptops, Ford, Chrysler, Doge Rams, Chevrolet, GMC, Imports, Medium Duty Trucks, like GM, Ford, IH, Peterbuilt, Kenworth. to name a few. And the Many Hours of training that our ASE Certified Techs, go through is crazy!

Any time that the check engine light comes on, there are typically 4 or 5 specific conditions that must be checked before any repair recommendations can be made. It is very important that you have an automotive repair technician that knows what trouble codes can cause the check engine light to come on, and can properly pinpoint the cause of the trouble.

Its great that some of our Parts warehouses offer to check this free, but they are only reading the codes, then telling you, you need to buy a part. This is not the way to do it. If they are lucky, you might fix it that way, but most times not. So we always say Diagnose first and fix second, not guess at a part replacement then diagnose, this will cost you downtime and money. 

We recommend to do it right the first time! So get it Diagnosed by our ASE Certified Techs First Then have it fixed, Then we can put a great warranty on the repair. A piece of mind for sure!


Our Holly and Saginaw, MI engine diagnostics services are the best in town, and we understand that knowing what set off the diagnostic trouble code (DTC) only tells you what area to look in for further engine diagnostic testing. With professional engine diagnostic testing equipment, we can thoroughly examine your vehicle and accurately pinpoint the precise cause of the trouble.

Don't just trust any mechanic with your engine needs. Our engine diagnostic professionals and equipment are just what you need to ensure that you have an accurate diagnosis of your engine check light problems, and a quick and efficient repair that is done properly the first time.

When that dreaded Check Engine Light comes on the ASE Certified Technicians at Armstead Automotive Repair can assist. Schedule an appointment today so that our competent and educated team can get you back on the road in a safe vehicle. Our customers mean the world to us and often feel like part of our extended family. We are located at 15310 Fish Lake Road, Holly, MI 48442. also a new location, at 8170 Gratiot rd. Saginaw MI. 48609.  Our hours are 8:00 AM - 5:30 PM, Monday - Friday.