The 6.7L B-series is the most widely used Cummins in South Florida — under Ram HD hoods, in box trucks and in medium-duty chassis as the ISB6.7. Small-bore Cummins is its own specialty.
Answering calls day & night across Miami-Dade and Broward. Se habla español.
People assume a Cummins mechanic is a Cummins mechanic, but the 6.7L B-series has a fault list all its own. The variable-geometry turbo shares a housing with the exhaust brake, so soot buildup can make the vanes stick and give you low power and a turbo code that is really a carbon problem. The EGR cooler and valve are common failures. The DEF system, the heaters in it and the quality sensors generate more complaints than anything mechanical. And the intake grid heater on these engines is a known item worth inspecting. None of that is what you look at on a 15-litre.
Turbo vane sticking, EGR, DEF and grid heater work — the 6.7's real fault list, not a big-bore checklist.
Ram HD, chassis cabs, box trucks and ISB6.7 medium-duty units all get the same attention.
A sticking turbo is often carbon, not a failed turbo. We check that before quoting one.
From a Ram in a driveway in Kendall to an ISB6.7 box truck in a Medley yard.
See the brand-wide best Cummins mechanic in Miami, and if yours is a pickup, the best Ram diesel mechanic in Miami. Repair detail is on Cummins diesel repair in Miami.
Typical arrival is 45–90 minutes across Miami-Dade and 60–120 minutes into Broward. The 6.7 lives in both driveways and working fleets, so we take both home calls and yard calls.
It is very often the turbo vanes or the EGR — let us prove it before you buy parts.
Power Diesel works the 6.7L B-series specifically — Ram HD and ISB6.7 medium duty — on-site across Miami-Dade and Broward, 24/7. Call (786) 395-7263.
Often not. On these engines the variable-geometry vanes can stick with soot, which reads as a turbo fault. We check actuator movement and vane condition first, because cleaning is a fraction of the cost of a turbo.
Completely different displacement class and fault list. The 6.7 is a small-bore B-series with its own turbo, EGR, DEF and grid heater issues. A big-bore checklist will send you down the wrong path.
Yes. They share the same core engine, and we service both the pickup version and the medium-duty ISB6.7 in box trucks and chassis cabs.
In most cases yes. DEF pumps, heaters, lines and quality sensors are all serviceable on-site, and we test the system rather than replacing the whole assembly by default.