Electrical System Troubleshooting
No-starts, dead batteries, charging faults, lighting and wiring problems.
Can a mobile mechanic fix a diesel truck that will not start?
Yes. A no-start is one of the most common roadside calls. Diesel Rx tests the batteries, cables, starter and charging system on site to find out why the truck will not crank or start, then repairs the fault. Call (864) 804-1438 any time of day or night.
When to call us
- Truck will not crank or cranks slowly
- Batteries that keep going dead
- Charging system or battery warning light
- Headlights, markers or trailer lights out
- Blown fuses or intermittent faults
- Chafed, corroded or damaged wiring
How the job goes
Test the basics
Batteries, cables, grounds and connections come first.
Test the components
Starter, alternator and the circuits that feed them.
Trace the wiring
We find the break, short or corroded connection.
Repair and confirm
We fix the fault and confirm the truck starts and charges.
Good to know
Lighting faults are a common reason for roadside inspection write-ups. They are usually quick to repair on site.