MIKE’S MOBILE LLC • COLORADO • CHEYENNE, WY • NORTH PLATTE, NE

Truck & Diesel Repair

Engine trouble, trailer faults, emissions codes or a truck that won’t start: Mike’s Mobile brings commercial truck and diesel repair to wherever your unit is parked. Family-owned with 20+ years in the trade, serving owner-operators and fleets across Colorado, Cheyenne and the North Platte region. Broken down now? Call 303-257-9186.

24/7 roadside assistance • Family-owned and operated • 20+ years of experience

Request Mobile Service

Tell us what needs service and where you're located. We'll review your request and follow up.

TRACTORS • TRAILERS • BOX TRUCKS • WORK TRUCKS

One Mobile Team for the Whole Truck

A truck rarely fails in just one place. A charging fault can look like an engine problem, and a bad trailer ground can trigger ABS lights on the tractor. Because our techs handle engines, emissions, electrical, brakes and trailers, you don’t need to call three different shops to find the cause.

We work on Class 6–8 tractors, day cabs, box trucks, dump trucks and the trailers behind them, at truck stops, yards and roadside locations from Fort Collins to Colorado Springs and out to North Platte.

Mobile mechanic repairing a big rig tractor on-site

Explore Our Truck & Diesel Repair Services

Select a service below to see what it covers, common warning signs and the dedicated page with more detailed guidance.

Mobile Diesel Repair

On-site support for diesel engine and drivability problems.

Common reasons customers call:
  • No-start and hard starting
  • Overheating or coolant loss
  • Loss of power and engine warnings
Explore Mobile Diesel Repair →

Semi-Truck & Trailer Repair

Mechanical and electrical service for commercial tractors and trailers.

Common reasons customers call:
  • Air brake and air-system concerns
  • Trailer lights and wiring faults
  • Suspension and connection issues
Explore Semi-Truck & Trailer Repair →

DPF & Emissions Repair

Troubleshooting diesel emissions faults and warning messages.

Common reasons customers call:
  • DPF regeneration failures
  • DEF or SCR faults
  • Engine derates and NOx codes
Explore DPF & Emissions Repair →

Electrical Diagnostics

Investigating starting, charging and wiring faults.

Common reasons customers call:
  • Dead batteries and no-crank conditions
  • Alternator or charging warnings
  • Intermittent wiring and lighting faults
Explore Electrical Diagnostics →

Common Truck & Diesel Repair Problems

These are the calls we get most often. If one sounds like your truck, request service and mention it. It helps us bring the right parts the first time.

Truck won't start

A no-crank or hard-start issue can involve batteries, starting circuits, fuel supply or engine controls.

Loss of power

Poor acceleration or engine derates may involve fuel delivery, turbocharging or emissions faults.

Overheating

Coolant loss, fan operation and other cooling problems need attention before further engine damage.

DPF or DEF warnings

Emissions warnings can indicate regeneration, dosing, sensor or exhaust system concerns.

Trailer lights or ABS faults

Connections, grounds, wiring and sensors can cause intermittent trailer problems.

Charging or wiring failures

Repeated dead batteries and voltage warnings may involve alternators, cables or electrical loads.

What to Expect From an On-Site Service Request

1. Explain the symptoms. A dashboard message is a clue, not a complete diagnosis. Describe when the issue occurs, whether the truck can move safely and what repairs were attempted.

2. Confirm the location and access. Give the precise location, equipment details and any site or roadside safety considerations.

3. Discuss diagnostic or service needs. Similar symptoms can have different causes. The appropriate work depends on actual findings and the type of equipment.

4. Plan the next step. Some problems can be addressed on-site; others require parts, additional equipment or relocation. Mike's Mobile is available 24/7 to discuss the request.

Technician working on a semi truck engine during a mobile service call

Frequently Asked Questions

Can a mobile mechanic work on a semi-truck?

Yes. Most of our work is on Class 8 tractors and trailers. Whether a repair can be finished on-site depends on the issue, parts and safe access to the truck.

What if the engine starts but has no power?

Reduced power can come from fuel, boost, sensor or emissions faults. Write down any dash messages and when it happens (under load, uphill, after a regen) to help with diagnosis.

Can you handle both engine and trailer problems?

Yes. Describe everything you’re seeing on both the tractor and trailer when you request service, so one visit can cover it.

Not Sure Which Service You Need?

Tell Mike's Mobile what is happening and where your vehicle or equipment is located. Call 303-257-9186 or send a service request online.

Related Commercial Services

Running several trucks? Our fleet services cover scheduled maintenance and DOT inspections in your yard. Stranded on the highway? See roadside services for 24/7 breakdown help, tires and towing. Need a bracket or frame repair? Our mobile welding team can help. Call 303-257-9186.

MIKE'S MOBILE

One Call. We Do It All. Family-owned mobile diesel, truck, trailer and heavy equipment repair.

Contact

303-257-9186

mikesmobilellc@gmail.com

Serving Colorado, Cheyenne WY & Nebraska

24/7 Roadside Assistance