Auto Engine Repair & Diagnostics Services in Grand Rapids, MI

Car Engine Repair & Diagnostics in Grand Rapids, MI

That warning light isn't going away on its own. And the longer you wait, the more a small problem has time to become an expensive one. At Kleyn Auto, our master-certified technicians use factory-grade diagnostic tools to find the real problem fast - not guess at it - so you're not paying for parts you don't need.

We've seen it all: misfires that three other shops couldn't trace, transmissions written off as needing a full rebuild that only needed a solenoid, check engine lights that came back two weeks after being cleared somewhere else. The difference is in how we diagnose. We don't just pull codes and start replacing parts. We analyze live data, run pinpoint tests, and verify the fix before the car leaves the bay.

Whether your engine is running rough, your transmission is shifting hard, or you've got a warning light and no idea where to start - bring it to Kleyn Auto. We'll tell you exactly what's wrong, what it'll cost, and how long it'll take. No surprises, no runaround.

Check Engine Light Diagnosis

When your check engine light comes on, the code is just a starting point. We capture fault codes, analyze live sensor data, and run pinpoint tests to find the actual cause - whether it's a failing O2 sensor, an EVAP leak, or something deeper. You'll get a plain-language explanation of what we found before we touch anything.

Engine Repair & Rebuild

From carbon-clogged intake valves and timing chain services to full engine rebuilds, our technicians have the experience to handle it. We use OEM-quality parts and torque-to-yield fasteners to make sure the repair holds. Whether it's a misfire, a loss of power, or a knock you've been ignoring, we'll diagnose it correctly and fix it right. Common issues we diagnose and repair include misfires, oil leaks, overheating, timing chain wear, carbon buildup, and engine mount failure. Whether your car is losing power, running rough, burning oil, or running hot, we'll find the cause and fix it correctly.

Harsh shifts, delayed engagement, or burnt-smelling fluid are all signs your transmission needs attention. We check adaptive shift tables, line pressure, and clutch wear to determine what's actually going on. Services range from fluid exchanges and solenoid replacements to full rebuilds - whatever the transmission actually needs, not whatever's easiest.

BG Transmission Service

BG Transmission Service removes varnish and degraded fluid, restoring proper shift quality and protecting internal components. Fresh BG conditioners improve lubrication and heat control, helping extend transmission life and prevent premature wear.

Diesel Engine Diagnostics & Repair‍‍

We diagnose and repair diesel-powered passenger vehicles too. Using OEM-level software, we analyze injector balance rates, boost pressure, DEF system performance, and DPF regeneration history. From high-pressure pump replacements to turbo repairs, we'll restore performance and fuel economy.

Warranty with Every Service

Every non-commercial automotive repair at Kleyn Auto is backed by the Confidence Plus Nationwide Warranty - 36 months or 36,000 miles, whichever comes first. That means if you have an issue with a covered repair anywhere in North America, you're protected. No need to drive back to us - just find a participating shop near you and the warranty travels with you. It's the kind of coverage you'd expect from a dealership, without the dealership price tag.

What Makes Us Different

Never Say No: We don’t believe in turning customers away. No matter the issue or the urgency, we’ll find a way to get you the service you need and back on the road.

Multiple Bays and Skilled Techs: With 19 service bays and a team of 9 experienced technicians, we can handle multiple vehicles at once, minimizing your downtime without ever sacrificing quality. 

Master-Certified Technicians: Most of our team hold Master Certifications, meaning your equipment is being worked on by some of the most qualified professionals in the industry.

Advanced Shop Technology: Our shop is equipped with modern diagnostic and repair technology. From computer-based engine diagnostics to precision alignment tools, we’ve invested in tools that help us work smarter and faster.

Honest, Transparent Pricing: No hidden fees, no surprise charges. We’re always upfront about our pricing, so you know exactly what you’re paying for before we begin the work.

Loaner Vehicles: If you’re here for automotive repairs, we offer loaner vehicles to keep your day moving while yours is in our shop.

Stop Guessing. Get Your Car Diagnosed Right.: Call 616-209-7007!

Got a warning light or something that just doesn't feel right? Call Kleyn Auto at 616-209-7007 and we'll get you in, figure out what's going on, and give you a straight answer - same day.

FAQs

What's the difference between engine diagnostics and engine repair?

Diagnostics is the process of finding the problem - reading fault codes, analyzing live data, and running tests to identify the root cause. Repair is fixing it. We do both, and we won't recommend a repair until the diagnostic confirms what's actually wrong.

Can you diagnose a car that another shop couldn't figure out?

‍Yes, and it happens more than you'd think. If a shop is relying on fault codes alone without digging into live data and pinpoint testing, they'll miss things. We use factory-grade scan tools and take the time to verify the cause before recommending any work.

My check engine light came back after being fixed somewhere else. Can you help?

Absolutely. A returning check engine light usually means the root cause wasn't found the first time - just the symptom. We'll start fresh with a full diagnostic and find what was missed.

How do I know if my transmission needs a full rebuild or just a repair?

You won't know until it's properly diagnosed. A lot of transmissions get written off as needing a full rebuild when the actual problem is a solenoid, a sensor, or a fluid issue. We diagnose first so you're only paying for what the transmission actually needs.

Do you provide a loaner car while my vehicle is being diagnosed or repaired?

Yes. If you're dropping your car off for diagnostics or repair, we offer complimentary loaner vehicles so your day keeps moving while we work on yours.

How much does car engine repair cost?

‍It depends on what's wrong. A minor repair like an oil leak or engine mount replacement is significantly less than a timing chain service or full rebuild. That's exactly why we diagnose first - so you know what you're actually dealing with and what it'll cost before any work begins. We don't charge you for guesses.

Ready for Answers You Can Trust?

From diesel injector balance rates to computer diagnostics and repairs, one call to 616-209-7007 delivers master-level diagnostics, transparent advice, and repairs that last. Feel confident behind the wheel again—reach out today!