Mobile Electrical Diagnostics
Methodical electrical diagnostics, wherever your vehicle is parked.
Advanced electrical troubleshooting for vehicles, powersports, and farm equipment — done on site by a technician with an aviation maintenance background. This is vehicle and equipment electrical work, not licensed residential wiring. Serving Puyallup, Sumner, Bonney Lake, Tacoma, and the South Sound.
What We Fix
Advanced electrical diagnosis for vehicles, powersports, and equipment
If it runs on wires and won't behave, there's a good chance we can help. We come to you with the tools and knowledge to diagnose it methodically — starting with the hard electrical faults other shops wave off.
Electrical troubleshooting
No-starts, parasitic battery drains, shorts, bad grounds, and wiring gremlins tracked down the right way.
Learn moreDash light diagnostics & repair
Check-engine, ABS, airbag, and warning lights read, diagnosed, and fixed at your location.
Learn moreSpark plug replacement
Fresh plugs, correct torque, proper gap. Smoother idle, better fuel economy, easier starts.
Learn moreSmall engine & motor electrical
Lawnmowers, ATVs, side-by-sides, dirt bikes, generators — starters, stators, wiring, and ignition work.
Learn moreFarm equipment electrical
Tractors, implements, and utility vehicles. Lighting, charging systems, harness repair, and diagnostics.
Learn moreWhat this doesn't include: engine teardowns. We diagnose engine electrical problems and can give you a straight second opinion if a teardown is being recommended elsewhere — but the teardown itself isn't something we perform.
Why an Aviation Background
Aviation discipline is not marketing — it’s a standard.
Aircraft electrical systems have no room for shortcuts. The same discipline, tools, and habits carry over to your truck, your ATV, your tractor, or your equipment.
Aviation maintenance discipline
Aircraft electrical work does not tolerate guessing. You get the same systematic diagnosis on your vehicle or equipment.
Proper connections
Correct crimps, solder joints, heat-shrink, and strain relief. No twist-and-tape shortcuts that fail six months later.
Documented work
Clear notes on what was diagnosed, what was replaced, and what to watch for. Nothing hidden.
Systematic diagnosis
A documented, methodical process aimed at a repair that stays fixed, not one that just gets you out the door.
Who We Serve
Built for people who need it done, not shopped around
Mobile service across Puyallup, South Hill, Sumner, Bonney Lake, Edgewood, Fife, Orting, and Tacoma. If you're nearby, ask — we may already be in your area.
We Come to You
The shop comes to your driveway
No tow, no drop-off, no waiting room. We arrive with the diagnostic equipment and do the work where your vehicle or equipment already sits — at home, at the jobsite, or wherever it stopped cooperating.
Pricing
Simple, up-front pricing
Soter Auto is mobile — we bring the diagnosis to you. Here’s how a mobile electrical visit is priced.
$125/hr
Labor
Diagnosis and electrical work are billed hourly.
$50
Trip charge
Covers up to 29 miles from Puyallup.
1 hr
Minimum
One-hour minimum for electrical troubleshooting.
Any parts are quoted up front, and you’ll always get an estimate before work begins.
Ready to get it fixed?
Tell us what's going on and where you're located. We'll follow up quickly with next steps.