NightOwl (336) 497-1507

Diagnostics

A code is a clue.
Not an answer.

The parts store reads your code for free and sends you home with the wrong part. We trace the actual fault — so you buy one part, once.

The difference

Free code readers
lie to you.

A P0300 misfire code doesn't mean "replace the coils." It means one of about fifteen things. A cheap scanner reads the code and stops. We keep going.

Full-system scan

Every module, not just the engine. ABS, SRS, transmission, body, HVAC — faults in one system routinely masquerade as another.

Live data

We watch the sensors while the engine runs. Fuel trims, ICP, IPR duty cycle, voltage under load — the real story is in the numbers moving, not the code sitting there.

Bi-directional testing

We command components on and off directly to prove which one has actually failed, instead of replacing parts and hoping.

Electrical tracing

Wiring, grounds, connectors and parasitic drain. The faults nobody wants to chase are usually the ones that were really wrong.

Common calls

What we get
called out for.

Check engine light

Steady or flashing. Emissions codes, misfires, sensor faults, fuel trim problems.

Cranks but won't start

Fuel, spark, compression, or a module refusing to authorize the crank. We find which.

Won't crank at all

Battery, starter, ignition switch, relay, neutral safety or range switch, immobilizer.

Battery keeps dying

Usually a charging fault or a parasitic draw. Both are traceable. Neither is a new battery.

Rough idle & stalling

Vacuum leaks, injectors, ignition, sensors, carbon. Live data separates them fast.

Warning lights everywhere

Half the dash lit up is usually one root cause — often a communication or ground fault.

What you get

Findings in writing.

Every diagnosis ends with a written summary: the concern you reported, what we actually found, and what it takes to fix it. Itemized, with part numbers. It's yours to keep — even if you decide to have someone else do the repair.

Stop guessing at it.

Tell us the symptom. We'll tell you what it'll take to find the cause.

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