Electrical, Starting & Charging Systems

Clean power delivery so your truck starts every time.

Modern diesel trucks rely on healthy electrical systems for everything from cold starts to emissions control. We diagnose parasitic draws, wiring faults, charging issues, and sensor glitches to prevent no-starts, shutdowns, or intermittent failures that derail your route.

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What's Included

Battery load testing, charging analysis, and cable condition checks.
Alternator, starter, and voltage regulator diagnostics under real load.
Harness and connector inspections with voltage-drop and continuity testing.
Power distribution module and ECU communication troubleshooting.
Repairs, rewiring, and component replacements using sealed connectors and heat-shrink protection.

Benefits

Eliminates surprise no-starts and road calls due to weak batteries or starters.
Protects sensitive electronics, sensors, and ECUs from voltage spikes.
Reduces regen failures and emissions faults tied to poor electrical supply.
Improves driver confidence with reliable lighting, HVAC, and accessory power.
Extends component life through proper charging and clean connections.

Ideal For

Trucks showing intermittent dash lights, flickering lamps, or warning messages.
Fleets with units that sit idle between shifts and struggle to start.
Owner-operators adding auxiliary power needs like liftgates or hotel loads.
Vehicles that recently had coolant or oil leaks contaminating wiring harnesses.
Equipment experiencing repeated aftertreatment or sensor-related fault codes.

Steps

How It Works

System Baseline

We test batteries, charging voltage, and starter draw to understand the overall health of the system.

Circuit Diagnostics

Using oscilloscopes and voltage-drop testing, we pinpoint wiring faults, corrosion, or failing components.

Repair & Rewire

Damaged cables, connectors, sensors, or modules are repaired or replaced with weather-sealed components.

Validation & Delivery

We verify system performance under load, clear fault codes, and provide recommendations to prevent future electrical issues.

Shop Snapshot

What we’re seeing in the bay

Recent no-start resolved with proper voltage drop testing and harness repair — clean, reliable cranking restored.