2021-2023 Jeep/RAM Fuel Filter Replacement TSB 14-010-25 REV. C

Stellantis has issued Technical Service Bulletin (TSB) 14-010-25 REV. C, dated June 24, 2025, to address the issue of premature diesel fuel filter replacement in certain 2021-2023 Jeep Wrangler, Jeep Gladiator, and RAM 1500 vehicles. This TSB is an informational document intended to guide dealerships on proper diagnosis and replacement procedures, aiming to reduce unnecessary warranty repairs and ensure effective resolution of fuel system issues. This bulletin supersedes TSB 14-010-25 REV. B, which was issued on June 06, 2025.

This TSB specifically applies to vehicles equipped with a 3.0L V6 Turbo Diesel Engine (Sales Codes EXJ or EXH) and is relevant to the North American market. The primary concern is that fuel line components, such as diesel fuel filters, are being replaced more frequently than their standard life expectancy, often due to contamination rather than normal wear.

Symptoms of a Clogged Fuel Filter

Owners of affected vehicles may experience several symptoms indicating that the fuel filter is becoming clogged and requires earlier replacement, even before reaching the recommended mileage. These symptoms are often related to the premature diesel fuel filter replacement issue.

Common signs include:

• "Difficulty Starting the Engine": Extended cranking times or a complete failure to start the engine.
• "Sluggish Acceleration": A noticeable lag or hesitation when pressing the accelerator pedal.
• "Engine Stalling": Unexpected engine shutdowns during vehicle operation.
• "Poor Fuel Economy": A decrease in miles per gallon without any changes in driving habits.
• "Instrument Panel Cluster (IPC) Warnings": Alerts displayed on the dashboard, such as "Fuel Filter Service Required" or "Water in Fuel" messages.

Diagnosis and Replacement Conditions

Before replacing the fuel filter, Stellantis recommends a specific diagnostic procedure to verify fuel contamination. This process helps ensure that the premature diesel fuel filter replacement is genuinely necessary and addresses the root cause.

Dealerships should perform the following steps:

1. Collect a Fuel Sample: Obtain a sample of the fuel from the vehicle.
2. Verify Contamination: Inspect the fuel sample. It should appear clear and bright. If the fuel is cloudy, hazy, contains visible particulates, or has water droplets, it is considered contaminated.

If fuel contamination is confirmed, the dealership is instructed to replace the contaminated fuel in the vehicle before proceeding with any component repair or replacement. This is crucial because Stellantis will not be charged for contaminated fuel under warranty.

Dealerships are required to replace the fuel filter under specific conditions, which include:

• Catastrophic pump failure that necessitated towing the vehicle to the dealership.
• The last fuel filter replacement occurred more than 15,000 miles (24,140 km) ago.
• The fuel filter flow is restricted and contaminated with debris.
• A leak is detected at the fuel filter connection joints.
• Evidence of metal contamination is found at the fuel pump and throughout the fuel system.

Important Notes for Owners

It is important for owners to understand that if fuel contamination is the cause of the issue, Stellantis will not cover the cost of replacing the contaminated fuel. However, if the fuel filter replacement is due to other covered conditions, it should be handled under warranty.

Always ensure that the vehicle mileage is recorded by the dealership whenever a fuel filter is replaced. This helps track service intervals and potential recurrence of the premature diesel fuel filter replacement issue.

Source: NHTSA ID 11020108