DEF / SCR system repair
in Farmington Hills

A DEF lamp can be quality, level, or an SCR fault. We test the system at 24175 Industrial Park Dr. Filling the tank and clearing the lamp is not a repair.

We diagnose sensors and dosing, then name the failed part before you approve.

Why is my DEF warning on?

Quality, level, or an SCR fault. We test sensors and dosing. We do not just fill the tank and send you out.

Can a diesel truck run without DEF fluid?

Many trucks derate or shut down. Call before a limp-home on I-96. Bring the year and the exact lamp text.

How much does it cost to fix DEF in a diesel tank?

A wrong-fluid event and a quality-sensor fault are different tickets. We inspect first. No invented catalog price.

What happens if diesel fuel is contaminated with DEF?

That is a different job than a lamp on a healthy tank. Say so when you call so we do not treat it as a fill.

Call (248) 478-8382 · Request service
24175 Industrial Park Dr, Farmington Hills, MI 48335
Mon–Fri 7:00 AM – 4:00 PM