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
We also offer services related to:
- BG Diesel Injection Service
- BG Diesel DPF & Emissions System Service
- BG Diesel Engine Performance Service
- BG Transmission Service
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:
- Strip-down inspection for cracks, scoring, and eccentric wear
- Cylinder re-liner or bore-hone with precision micrometers
- Balanced rotating assemblies, bearings, and piston packs
- 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
Our written warranty covers labor and parts for one year and unlimited mile, and every build includes updated service documentation for future resale value.
OEM Software Support
Factory software matters; generic readers miss nuance. We run licensed suites for CAT®,Cummins®, Detroit Diesel®, Mercedes-Benz®, Mack®, International®, Volvo®, Hino® andIsuzu® engines plus Allison® and Eaton® transmissions. Brake faults? We interfaced directly with Bendix®, Haldex®, and Wabco® ABS for component tests, valve modulation routines, and firmware updates. Your warranty stays intact because every byte is genuine.
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 13 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.
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’ always offer clear estimates, and get approval before turning a wrench—dial 616-209-7007 today.
FAQs
What Areas Do You Serve For Engine & Powertrain Services?
Kleyn Mobile Repair is based at 6680 Wilshere Dr, Jenison, MI 49428, just off of Chicago Dr (M-121). We can be found on the cross of Port Sheldon and 28th Ave, Port Sheldon, and Chicago Drive. We are only a few minutes away from the M6 highway for easy access.
As well as Jenison, we also proudly bring our services to: Grand Rapids, MI; Lansing, MI; Jamestown, MI; Kalamazoo, MI; South Bend, Byron Center, MI; MI; Holland, Allendale, MI; MI; Muskegon, MI; Wyoming, MI; Walker, MI; Kentwood, MI; Grandville, MI; Hudsonville, MI; Zeeland, MI; and Grand Haven, 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
Ned
Jacob
Madison
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.