Truck won't start
A slow crank, single click or no response can involve batteries, cables, starter circuitry or other controls. Note whether the dash powers on and whether the starter turns.
MIKE’S MOBILE LLC • COLORADO • CHEYENNE, WY • NORTH PLATTE, NE
Mike’s Mobile LLC provides mobile diesel repair for commercial trucks, trailers and heavy equipment across Colorado, Cheyenne, Wyoming and the North Platte, Nebraska region. Our family-owned business has more than 20 years of industry experience. Describe the issue, your equipment and location in the request form, or call 303-257-9186 for urgent roadside assistance.
24/7 roadside assistance • Family-owned and operated • 20+ years of experience
Tell us what needs service and where you're located. We'll review your request and follow up.
ON-SITE DIESEL SERVICE • NO TOW REQUIRED
When a diesel engine quits, the usual answer is a heavy tow and days waiting in a shop bay. Our service trucks carry diagnostic scan tools, common parts and the equipment to troubleshoot and repair Cummins, Detroit, PACCAR, Volvo, International and other heavy-duty diesels right where they sit, whether that’s a truck stop on I-76, a yard in Commerce City or a job site in Weld County.
We handle no-starts, power loss and derates, overheating, fuel and air problems, charging failures and check-engine faults. If the repair can’t be finished on-site, we’ll tell you why and help you plan the next step, so you’re not left guessing.
A diesel truck can be disabled by a small electrical fault or a major mechanical problem. The symptoms you notice help narrow the starting point, but similar symptoms can have different causes. These examples explain what to look for and what to share when requesting mobile diesel repair.
1. Describe the symptoms. Share the truck's make, model, approximate year, location, warning messages and whether it is safe to move. Explain if the problem began suddenly, after a repair, or only under load.
2. Identify the affected system. Depending on the concern, a technician may need to examine starting and charging circuits, fuel supply, cooling, engine controls, intake or exhaust components. Diagnostic fault codes can guide testing but do not automatically identify a failed part.
3. Determine the appropriate repair path. Some faults can be addressed where the truck is parked; others may require additional parts, specialized work or transport. Repair feasibility depends on access, safety, equipment and the actual failure.
4. Confirm operation. Following a repair, relevant functions should be checked and any remaining warning signs discussed. For intermittent faults, monitoring may still be necessary.
Starting and charging: Battery condition, cable connections, starter operation, alternator output and electrical grounds can all contribute to a no-start complaint.
Fuel delivery: Restricted filters, supply problems, fuel quality and electronic controls can contribute to rough running, poor response or hard starts.
Cooling: Coolant leaks, radiator restrictions, hoses, thermostats and fan operation are relevant when a truck overheats.
Air intake and turbocharging: Boost leaks, charge-air connections and control faults may contribute to reduced power or abnormal performance.
Emissions controls: DPF, DEF, SCR and EGR-related concerns can trigger warning lights or engine derates. See our dedicated DPF and emissions repair page for more detail.
Electrical and engine management: Sensors, wiring, modules and power distribution faults can create intermittent or overlapping symptoms. Learn more about mobile electrical diagnostics.
Get to safety first. If the truck is in traffic or an unsafe location, follow applicable roadside safety procedures and contact emergency services when needed. Do not work under or around a vehicle in an unsafe position.
Note the dashboard messages. Photograph fault messages and gauges if it is safe to do so. Write down whether the engine cranks, starts and stalls, overheats or runs with reduced power.
Prepare the truck details. Have the vehicle make, model, unit number, precise location, callback number and a short description of the issue ready.
Request service. Mike's Mobile provides 24/7 mobile commercial repair support. Describe the situation so the team can discuss the next step and service logistics.
From no-start complaints and electrical failures to overheating and engine performance issues, Mike's Mobile is available 24/7. Tell us what happened, where the truck is located and how to reach you. For immediate assistance, call 303-257-9186.
Diesel problems often overlap with other systems. If your truck is throwing emissions codes or won’t complete a regen, see DPF & emissions repair. For lighting, wiring or ABS faults, see electrical diagnostics. If the trailer is the problem, see semi-truck & trailer repair. Stuck on the shoulder right now? Our 24/7 roadside truck repair team can help. Call 303-257-9186.
One Call. We Do It All. Family-owned mobile diesel, truck, trailer and heavy equipment repair.
Serving Colorado, Cheyenne WY & Nebraska
24/7 Roadside Assistance