Engine Diagnostics & Repair. SHD Fleet Service & Repair

Engine diagnostics
& repair, done right

Check-engine light or derate? We pull and interpret fault codes, isolate the real problem, and repair it, from sensors to after-treatment to in-frame engine work.

Call (334) 962-7267
Engine Diagnostics & Repair

What's included

  • Computer diagnostics & fault analysis
  • After-treatment / DPF / DEF systems
  • Turbo, EGR & fuel system repair
  • In-frame engine overhaul
  • All major heavy-duty diesel makes
How we work

A code tells you something is wrong. It does not tell you what. We read the data, test the circuit, and find the cause instead of swapping parts until the light goes out. That is cheaper for you and it holds up on the road.

Most diagnostics and sensor work happens on-site from the service truck. Turbo, EGR, and in-frame work comes to the Opelika facility, where we have the lift and tooling for class 7–8 trucks.

Straight Answers

Engine Diagnostics & Repair FAQ

My truck is in derate. Can you fix it on-site?

Often, yes. After-treatment, DPF, and DEF faults are usually diagnosed and repaired from the service truck. Call (334) 962-7267 and describe the code.

Which makes do you work on?

All major heavy-duty diesel makes: engines, after-treatment, electrical, brakes, and air systems.

Do you do in-frame engine work?

Yes, at the Opelika shop. In-frame overhaul, turbo, EGR, and fuel system repair handled under one roof.

How do you quote engine work?

Straight assessment first, clear pricing before we turn a wrench. We fix the cause, not just the code, and stand behind it.

See all services · Contact & hours

Down a truck? Don't wait.

Get your fleet back on the road

(334) 962-7267Mon–Fri 7a–5p · Based in Opelika, AL
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