
South Florida
Cummins Generator Won't Start? Causes, Checks and Common Problems
A Cummins generator that cranks but won't start, or won't crank at all, usually comes down to fuel, air, compression or electrical. Here is what our mobile mechanics check first, plus the other problems we see most on Cummins generator equipment.
South Florida
Why a Cummins Generator Won't Start
Dead or weak batteries and corroded cables, a failed starter or relay, air in the fuel system, clogged fuel filters, a bad lift pump, seat and neutral safety switches, glow plug or intake heater faults, and low compression on high-hour engines. Other searches we hear about Cummins generator: won't start, shuts off, overheating.

600+
Service Calls Per Year
282
Reoccurring Clients

Cummins Diagnostics
Fault codes, live data, compression and fuel pressure tests on the Cummins pinpoint the cause.

Cummins No-Start Repair
Fuel supply, starting system, compression and sensor faults that keep the Cummins from starting repaired.

Cummins Injector & Fuel System
Injectors, high-pressure pumps, lift pumps and filters on the Cummins tested and replaced.

Cummins Turbo Repair
Boost loss, smoke and failed bearings on the Cummins turbocharger repaired.

Cummins Cooling System
Water pumps, thermostats, radiators and oil coolers on the Cummins repaired to stop overheating.

Cummins Head Gasket & Top End
Cylinder head, gasket and valve work on the Cummins done on site where practical.

Cummins In-Frame Rebuild
Liners, pistons, rings and bearings on the Cummins replaced with the engine in the machine.

Cummins Emissions Repair
EGR, DPF, DEF and sensor faults on later Cummins engines diagnosed and repaired.
Fuel Injection
Injector and pump repair on the Cummins.
Turbocharger
Turbo repair and replacement.
Cooling System
Water pump, thermostat and radiator repair.
Cylinder Head
Head gasket and valve work on the Cummins.
Block & Rotating Assembly
In-frame and full rebuilds.
Aftertreatment
EGR, DPF and DEF repair.
Electrical & ECM
Sensor, harness and ECM repair.
Starting & Charging
Starter, alternator and battery service.
Lubrication & Oil Pressure
Oil pump and pressure problem repair.
CITY
Reach Out?
Need service for your heavy equipment? Our mobile diesel mechanics provide on-site diagnostics, engine repair, hydraulic service, and drivetrain repairs to keep your machines running with minimal downtime.
Yes. Our diesel mechanics provide mobile, on-site heavy equipment repair throughout South Florida. We service equipment directly at job sites to reduce downtime and avoid unnecessary transport.
We repair a wide range of heavy equipment, including excavators, loaders, backhoes, skid steers, dozers, agricultural machinery, and other diesel-powered equipment used in construction and industrial operations.
Response times vary based on location and workload, but our mobile diesel mechanics aim to provide prompt service to diagnose and repair equipment as efficiently as possible.

