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The Wrench Bros
Diesel & Automotive Diagnostics

A real tech
on the line.
Right now.

Stop guessing at fault codes and forum threads. Get a certified diesel or automotive technician on the phone in minutes — diagnose check-engine lights, hard starts, and tough drivability problems. Pay only for the help you need.

No subscriptionRecorded & logged callsVetted technicians
Live Diagnostic Call
07:42

Mike R. · Diesel Specialist

4.9 · 612 calls · Cummins / Duramax

Vehicle

2017 RAM 2500 · 6.7L Cummins · 142,310 mi

Active Code

P2459 — DPF Regeneration Frequency

Session rate$2.50/min

1,200+

Vetted Techs

< 4 min

Avg. Connect Time

38,400

Issues Diagnosed

4.8 / 5

Avg. Rating

How It Works

From check-engine light to fixed

Three steps. No appointments at a shop, no diagnostic fee just to be told what you already suspected.

01

Describe the problem

Add your vehicle, the symptoms, and any fault codes. The more detail, the faster the diagnosis.

02

Match with a tech

We surface technicians who specialize in your platform — Cummins, Powerstroke, Duramax and more.

03

Hop on a call

Talk it through in-app. The call is recorded, the diagnosis is logged to your garage, and you only pay for the time used.

Built for the Diesel Crowd

Find a specialist for your rig

Our techs declare exactly what they wrench on. Filter by engine platform, system, or performance focus.

Browse all techs
Cummins 6.7Powerstroke 6.0/6.4/6.7Duramax LB7/LBZ/L5PEGR / DPF / DEFTurbo & BoostFuel SystemsElectrical & WiringTransmissionGas EnginesDiesel Performance Tuning
More Than A Phone Call

A full platform for vehicle owners

Your cockpit

Your Digital Garage

Every vehicle, every issue, every diagnosis tracked in one CRM-grade history you actually own — so the next call starts where the last one ended.

VIN trackingService historyFault-code log

Vetted & Vettable

Review each tech's profile, certifications, success rate, and ratings before you ever dial.

Transparent Pricing

Techs set their own per-minute rate up front. No surprise diagnostic fees, ever.

Vehicle Marketplace

Buy and sell trucks and project rigs in a community that knows what they're worth.

Community Forum

Swap builds, troubleshooting wins, and parts advice with owners who run what you run.

OBD-II Code Lookup

Search any trouble code, understand it, then book the right specialist to nail the fix.

For Technicians

Turn your wrench knowledge into income

You've spent years learning these platforms. Get paid for it — on your schedule, from your shop or your couch. Set your own rates, build a public reputation, and let the calls come to you.

Set your own rates

Per-minute, per-call, or hourly. You're in control.

Work on your schedule

Set availability. Go online when you want the calls.

Build a reputation

Reviews, badges, and a success rate that earns trust.

Fast, tracked payouts

Earnings logged per call, paid out on a clear schedule.

Techs online now

Quit fighting your truck alone

Create a free account, add your vehicle, and get a real technician on the line. No subscription, no commitment.