(401) 381-7400Hours & info1710 Eagleville Road, Tiverton, RIMon–Fri: 9am–5pm | Sat: By Appt Only | After Hours: Corporate Fleet Only
Street Werx(401) 381-7400
Repair · Exhaust & Emissions

Exhaust & Emissions

When a check-engine light pulls the truck out of service.

The situation

Modern diesel emissions systems are sensitive — a single sensor or sticking valve can cut power, fail inspection, or throw a code the driver doesn't recognize. We work on the emissions and exhaust side of commercial diesels and trace the actual cause before recommending parts.

What we cover

Diesel Particulate Filter (DPF) service and replacement

Forced regen via scan tool

EGR valve, cooler, and sensor replacement

DEF pump, injector, and sensor service

DEF tank heater and line repair

Exhaust manifold, gasket, and downpipe repair

Exhaust clamps, hangers, and mounting hardware

Muffler and tailpipe service

Emissions fault diagnosis and post-repair verification

Limp-mode and derate diagnostics

Our Diagnostic Process

01

Diagnosis

Pull active and historic codes, check sensor values against expected ranges, and inspect the exhaust path. Many emissions faults trace back to a sensor or hardware issue upstream of the warning light.

02

Written estimate

What we found, what it costs to fix — written down before any work starts.

03

Repair, regen, and verification

Component repair or replacement, forced regen if needed, post-repair scan to confirm the codes stay cleared. Photo updates throughout.

Frequently asked

01Can you do a forced regen?

Yes. Forced regen is a scan-tool procedure and we do it here. If the regen fails repeatedly, that points to a hardware or sensor issue upstream — and we diagnose and fix that too.

02Can you replace a DPF?

Yes. Replacement is in-house, including post-replacement regen and verification.

03What about EGR delete or DPF delete?

No. We don't do emissions deletes. Federal and state law prohibits tampering with diesel emissions equipment, and a tampered truck fails DOT inspection.

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Mack logo
Western Star logo
PACCAR logo
Peterbilt logo
Kenworth logo
Volvo logo
Mack logo
Western Star logo
PACCAR logo
Peterbilt logo
Kenworth logo
Volvo logo