We repair the Paccar MX-13 and MX-11 PCI engine module on Kenworth, Peterbilt, and DAF trucks. Injector drivers, no-start and no-communication, and blown-fuse faults are the ones we see most. If your ECM is doing one of these, we have likely fixed the same thing this week.
These show up across these ECMs week in and week out. If your symptom is on this list, that is good news. It means we have seen it before and it is fixable.
What you see: a dead hole, misfire, derate, or a rough run that follows the ECM and not the injector.
What's happening: the circuit that fires the injectors has burned or shorted, often paired with an internal power-supply fault on the MX PCI.
What we do: we rebuild that section of the board and bench-test every injector channel before it ships back.
What you see: the ECM will not talk to your diagnostic tool, or the truck will not wake the engine at all.
What's happening: internal power-supply damage inside the PCI module, so the board will not boot or hold communication.
What we do: we restore the power section on the bench so it boots and communicates again, and the no-start clears.
What you see: a unit that repeatedly pops a fuse, shows burnt components, or cuts out once it heats up.
What's happening: a short or a thermally-stressed component inside the module, sometimes from heat and vibration cracking a joint.
What we do: we find the shorted or cracked part, repair it at the component level, and heat-soak and bench-test the unit before it ships.
Don't see your exact symptom? Send it in anyway. These are the common ones, but these ECMs fail in other ways too, and we test every unit before we tell you what is going on.
Self-ship free, or add a prepaid UPS label. Drop-offs in Princeton, MN by appointment.
$350 bench fee, credited toward the repair. We test it and tell you exactly what failed, usually in 1-2 business days.
Injector driver repair, power-supply restoration, component-level short repair, whatever it needs. Standard turnaround 3-5 days on the bench.
Programmed to your engine, bench-tested, and backed by our repair warranty. Plus 1-3 days return shipping.
Verified Google reviews
"Mike does great work and sent my repaired ECM back to me right away. Saved me thousands of dollars vs. using the dealer. Would recommend to anyone that needs prompt repair."
"From ECMs and harnesses to straight-out cutting counter bores in-frame for us. Great shop — and a great person to have in your pocket."
"Highly recommend these guys! Fast turnaround — I had my ECM back and repaired by the next day. Will definitely do more business in the near future."
"Michael is a diesel guru. He made my rig scream and had it done when he said, for the price we agreed to. I'd highly recommend him."
"Mike is highly knowledgeable in all areas of diesel repair — from mechanical work to advanced electrical diagnostics. You can count on him to get the job done right."
"Mike is a very professional and skilled mechanic. I highly recommend him for any of your needs."
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