The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

2020 Gladiator EcoDiesel DPF Regeneration Issues - Check Engine Light

0

Mike T. · rep 0 · May 22, 3:22 AM · 1 replies · solved · Question

Vehicle: 2020 Jeep Gladiator Rubicon EcoDiesel

I'm having some persistent problems with my 2020 Jeep Gladiator Rubicon EcoDiesel. Lately, the 'Check Engine' light has been coming on, and I'm getting codes related to the Diesel Particulate Filter (DPF). Specifically, I've seen P2002 (Diesel Particulate Filter Efficiency Below Threshold).

The truck feels a bit sluggish, and I've noticed the automatic regeneration cycles seem to be happening more frequently, or sometimes not completing at all. I do a mix of city and highway driving, but I try to give it enough highway time for regens.

Is this a common issue with the EcoDiesel, and what are the typical fixes? I'm worried about a costly DPF replacement.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 3:22 AM

0

ClearTheCode admin answer:

The Diesel Particulate Filter (DPF) system in your 2020 Jeep Gladiator Rubicon EcoDiesel is a critical component for emissions control, and issues with its regeneration are common in many modern diesels, including the EcoDiesel. The P2002 (Diesel Particulate Filter Efficiency Below Threshold) code indicates that the DPF is not effectively trapping soot or that the regeneration process isn't completing as expected.

Common Causes for DPF Issues:

  1. Incomplete Regeneration Cycles: Frequent short trips or excessive idling can prevent the DPF from reaching the high temperatures needed to burn off accumulated soot.
  2. Faulty DPF Pressure Sensors: These sensors monitor the pressure difference across the DPF to determine soot load. If they fail, the PCM receives incorrect data, leading to improper regeneration cycles.
  3. EGR (Exhaust Gas Recirculation) System Issues: A clogged or malfunctioning EGR valve can introduce more soot into the exhaust, overloading the DPF.
  4. Fuel Injector Problems: Malfunctioning injectors can lead to incomplete combustion, producing more soot.
  5. Low DEF (Diesel Exhaust Fluid) Levels or Quality: While not directly DPF, DEF is crucial for the SCR (Selective Catalytic Reduction) system, which works in conjunction with the DPF for overall emissions.
  6. DPF Clogging/Failure: Over time, if regeneration is consistently unsuccessful, the DPF can become permanently clogged or damaged.

Troubleshooting Steps:

  1. Forced Regeneration: A dealership or a shop with advanced diagnostic tools can initiate a forced regeneration cycle to attempt to clear the DPF.
  2. Check DPF Pressure Sensors: These sensors are a common failure point. A mechanic can test their readings.
  3. Inspect EGR System: Check for carbon buildup in the EGR valve and cooler.
  4. Monitor Driving Habits: Ensure you're regularly driving at highway speeds for at least 20-30 minutes to allow passive and active regeneration to occur.

When to See a Shop:

It's crucial to address DPF issues promptly. Continued driving with a clogged DPF can lead to reduced engine power (limp mode), poor fuel economy, and potentially damage to other exhaust components or the turbocharger. Take your Gladiator to a Jeep dealership or a diesel specialist. They can perform a comprehensive diagnostic, including checking sensor readings, performing a forced regeneration, and inspecting the DPF and related emissions components. Early intervention can often prevent the need for a costly DPF replacement.

Menu

Help & account