Engine & Powertrain Services Services in Jenison, MI

Engine & Powertrain Services

Noticing sluggish performance, warning lights, or unusual noises from your rig’s powerplant? Our team tackles issues head-on, restoring full power and reliability fast—so you stay productive and profitable.

Diesel Engine Diagnostic & Repairs

Modern diesels run on tight tolerances and digital controls. Our master-certified technicians open every service with comprehensive engine diagnostics, including live data logging, injector balance tests, and boost-pressure analysis. We correct:

  • Turbo surge or lag
  • Aftertreatment faults (EGR, DPF, SCR)
  • High-pressure fuel injection system leaks
  • Sensor-driven derates or limp-mode events

Because we stock OEM and Certified Parts Plus components, most jobs finish the same day. Need deeper work? We reseal heads, set valve lash, and calibrate the Electronic Control Module (ECM) to OEM specs.

Gas Engine Diagnostic & Repairs

Gasoline powerplants demand different test strategies. Scope-traces reveal ignition coil failures, while volumetric-efficiency checks expose restricted catalysts. Common fixes include:

  • Coil-on-plug misfires
  • Variable-valve-timing actuator replacements
  • Intake-manifold gasket leaks
  • Fuel-trim corrections for direct-injected engines

Every repair ends with a road-test printout that proves power and emissions are back where they belong.

Engine Overhaul

When wear reaches the point where patchwork won’t cut it, we offer complete overhauls:

  1. Strip-down inspection for cracks, scoring, and eccentric wear
  2. Cylinder re-liner or bore-hone with precision micrometers
  3. Balanced rotating assemblies, bearings, and piston packs
  4. Re-machined cylinder head gasket surfaces and valve-train geometry

Dyno verification confirms horsepower, torque, and fuel-rate specs before you roll out.

Engine Repair, Rebuild, Overhaul & Conversion

Whether you operate a delivery van or tandem-axle heavy hauler, we tailor solutions to your budget and downtime window:

  • Quick reseals for external leaks
  • Mid-life truck engine overhaul for oil-consuming units
  • Full rebuilds after catastrophic rod knock or crank failure
  • Turbo-charging and emissions-system conversions for legacy engines

Our written warranty covers labor and parts nationwide, and every build includes updated service documentation for future resale value.

What Makes Us Different

  • Certified Parts Plus service centre—OEM quality without dealer mark-ups.
  • Majority of our technicians hold ASE Master Medium/Heavy Truck credentials, ensuring accurate first-time fixes.
  • The owner’s Tasmanian farm-shop roots instilled a “never turn good people away” mindset; there’s always a tech who can handle your challenge.
  • Exclusive services: fire-truck towing, pump testing, and refurbished units for sale.
  • Friendly, professional atmosphere that treats a single-unit owner-operator with the same respect as a national carrier.

Contact Us About Engine & Powertrain Services Now: Call 616-209-7007!

Oil in the coolant? Exhaust smoke you can’t ignore? Bring your vehicle to 6680 Wilshere Dr or ask us to arrange towing. We’ll provide digital photos, clear estimates, and get approval before turning a wrench—dial 616-209-7007 today.

FAQs

What Areas Do You Serve For Engine & Powertrain Services?

We’re based at 6680 Wilshere Dr, near 8th Ave & Port Sheldon St in Jenison, MI, and proudly serve Grand Rapids MI, Mount Pleasant MI, Lansing MI, South Bend IN, Kalamazoo MI, Wyoming MI, Three Rivers MI, Michigan City MI, St Joseph MI, and Portage MI.

What Does A Full Engine Diagnostic Test Consist Of?

A complete diagnostic blends electronic scans with mechanical checks. Technicians read stored and live codes, verify fuel and oil pressures, and perform compression or leak-down tests. Data trends reveal hidden problems, allowing precise repairs that prevent repeat failures and unnecessary part swaps.

Can Low Oil Level Cause A Check-Engine Light?

Yes. When oil drops below the pickup, pressure sensors alert the control module, illuminating the lamp and sometimes initiating an engine derate. Adding oil may clear the light temporarily, but you must investigate consumption or leaks, reset the code correctly, and confirm stable pressure afterward.

Schedule Your Engine Service Today

Lost time equals lost revenue. Let Kleyn Mobile Repair restore your engine’s strength quickly and correctly. Call 616-209-7007 now to secure a bay or request immediate assistance.

Kleyn Mobile

Kleyn Mobile Services & Repairs

Whether you’re looking for a quick tune-up onsite or need a comprehensive repair cycle in-shop, our team handles whatever your vehicle might need; this includes gas and diesel powertrains, addressing & clearing after-treatment warnings, and even pre-purchase inspections. From fluid exchanges to electrical & battery system maintenance, you stay informed with clear, written estimates and timelines. With us, every visit ends with a work summary—so surprises never reach your inbox.

Reviews

Customer Testimonials

"Kleyn goes above and beyond in making sure you get back on the road. They have somehow found a group of a dying breed of people that put in the extra effort to make sure the job is done correctly and quickly."
- Dan

"It was our first breakdown with the motorhome we bought a year ago. Uncharted territory for us. Kleyn was able to come out the same day, the techs were no-nonsense and quickly determined we needed a new water pump (diesel engine), got the pump, and replaced it. They were efficient, polite, and did the job in a hurry."

Ned

"Kleyn was able to squeeze me in and help me out a lot when I was in a pinch. Very timely responses and turnaround from the team! They had great communication throughout the whole process and made sure I was in the loop on what was going on and what they were going to do. Highly recommend!"

Jacob

"I visited Kleyn auto repair last week and they are by far the greatest body repair shop I’ve been too. They are reasonably priced and it’s honest trustworthy work. They make sure you know what’s wrong and help you figure out the solution. 10/10 would recommend taking your car to them! I will be coming back for any or all of my car needs."

Madison

"The guys there were tremendously helpful during my pre-purchase inspection and prices were very reasonable. 10/10 would go back for any automotive repairs."

Miles

Contact & Locations

Contact us

Have questions or need to schedule a repair? Our team at Kleyn Mobile, Kleyn Auto Repair and Kleyn Fire is here to help. Located in Grand Rapids, Michigan, we specialize in reliable, no-nonsense auto, truck and fire truck repair with fast turnaround times and honest service. Give us a call or drop by the shop — we're ready to get you back on the road.

Speak to a Service Advisor Now!
616-209-7007