Mobile limp mode & DEF/DPF repair

Machine stuck in limp mode? We clear it on-site.

A DEF, DPF, or sensor fault can drop your machine into limp mode or a derate and leave it barely able to move. We come to you in Jacksonville, Middleburg, and across North Florida, read the codes, run a forced regen, clear the derate, and fix what actually caused it, so it does not come right back.

Request service Call (352) 507-3088

★ 5.0 on Google We come to you 12+ years diesel Licensed & insured

What we fix

Limp mode, derate, and the fault behind it.

Modern diesel machines shut themselves down to protect the engine and the emissions system. We read the codes on-site, get you running, and fix the real cause, whether it is a DEF problem, a clogged DPF, or a failed sensor.

Limp mode & engine derate DEF faults & DEF quality sensor Clogged DPF / won't regen Forced & parked regen NOx & emissions sensors Codes that won't clear

Reed's Mobile Services truck ready to drive to a jobsite

We come to you

The dealer is weeks out. We come today.

A derated machine is a machine you cannot use. The dealer can be weeks or a month out just to look at it, and hauling it there costs a fortune. We drive to your jobsite, plug in, and get eyes on it right away, so your machine stays on site and gets back to work.

On-site diagnostics with a scan tool
No high-dollar haul to move a dead machine
We serve North Florida and South Georgia

A machine opened up for on-site diagnosis

The real cause, not a reset

We fix why it derated, not just clear the light.

Anyone can clear a code and hand it back, and then it derates again a day later. We read the fault, run a forced regen if the DPF needs one, and find what set it off, a bad DEF quality reading, a clogged DPF, a failed NOx sensor, or a dosing problem. We fix that part, then verify it holds before we leave.

Read codes, forced regen, clear the derate
Find and fix the fault that caused it
Price up front, before we start the work

Sensors and lines in a diesel engine bay

DEF, DPF & sensors

The parts that put you in derate.

Most derates trace back to the same handful of things: a DEF quality or level sensor, a plugged or worn DPF, a NOx sensor, a DEF dosing module, or contaminated DEF fluid. A full DEF tank does not mean the system is happy, one bad sensor will still shut you down. We test the parts and replace the one that failed, not the whole system.

Reviews

Rated 5.0 on Google

★★★★★

"We had an issue with a piece of equipment breaking down at the port in Jacksonville. We got the equipment delivered to Tyler at Reed's and he quickly found the problem, repaired the problem, and sent the equipment back to port."

Nora Z. · Google review

★★★★★

"Tyler is usually taking care of our equipment when he says he's going to be there, and if not, he always lets me know. He does a very good job, and he's very reasonable with his rates."

Joe R. · Google review

Questions

Common questions

What is limp mode or a derate?

It is the machine protecting itself after an emissions or engine fault. It cuts power and speed so you cannot hurt it, and it will not let you just reset it. We read the codes on-site, get it running, and fix the cause.

My DEF tank is full but the machine is still derated. Why?

A full tank does not mean the system is happy. A bad DEF quality sensor, a failed NOx sensor, a dosing fault, or contaminated DEF can all put you in derate with a full tank. We test the parts to find which one it is.

Can you run a forced regen on-site?

Yes. If the DPF is loaded with soot, we run a forced or parked regen right where the machine sits, then find out why it was not regenerating on its own so it does not clog up again.

My DPF won't regen, or the regen takes forever. Can you fix it?

Yes. A regen that will not finish or keeps coming back points to a plugged DPF, a sensor, or a fuel or temperature problem. We run the regen and repair what is keeping it from cleaning itself out.

Can you just delete the DEF or emissions system?

No. Deleting or tampering with an emissions system is against federal law, and it can throw the machine into a worse fault or damage the ECM. What we do is repair it: find the fault, fix the failed sensor or part, run the regen, and clear the derate the right way so it stays fixed and legal.

How fast can you get to me?

For a machine that is down, we move fast. Call or text 352-507-3088 with the make, model, and the code or warning on the dash, and we will tell you straight when we can be there.