2021-2025 Jeep/RAM/Dodge 3.6L Misfire & Valvetrain Noise TSB
A manufacturer communication (TSB 11014231) addresses engine misfires, rough idle, and valvetrain noise in 2021-2025 Jeep, RAM, and Dodge vehicles equipped with the 3.6L PSU Long Block engine. The issue is linked to worn intake camshafts and rocker arms, typically occurring between 10,000 and…
David Chen2021 Jeep Wrangler
Si applica anche a
- Jeep Gladiator
- 2021–2025
- Jeep Grand Cherokee
- 2021–2024
- Jeep Grand Cherokee L
- 2021–2024
- Jeep Wrangler
- 2022–2025
- Dodge Durango
- 2021–2025
- Ram 1500
- 2021–2025
Owners of 2021-2025 Jeep, RAM, and Dodge vehicles equipped with the 3.6L PSU Long Block engine may experience issues such as engine misfires, a rough idle, or noticeable valvetrain noise. This manufacturer communication, identified as NHTSA ID 11014231, details a common cause for these problems and outlines a specific repair strategy. This issue often manifests as a high mileage failure, typically between 10,000 and 60,000 miles.
This technical service bulletin (TSB) is particularly relevant for owners searching for information related to a 2021 Jeep Wrangler manufacturer_communication regarding engine performance.
Symptoms
Owners may observe one or more of the following symptoms in their vehicle:
- Engine misfires, potentially indicated by a flashing check engine light or diagnostic trouble codes (DTCs).
- A rough or unstable engine idle.
- Audible valvetrain noise, which might sound like ticking or clattering from the engine.
These conditions are often related to wear on the intake camshaft high lift lobe(s) and the intake rocker arm(s) high lift slider.
Fault Codes / DTCs
The manufacturer communication mentions the presence of
Frequently Asked Questions
- What are the common symptoms of the 3.6L engine issue described in TSB 11014231?
- Owners may experience engine misfires, a rough idle, or valvetrain noise. These symptoms are often linked to worn intake camshaft high lift lobes and intake rocker arm high lift sliders.
- Which vehicles are affected by this 3.6L engine problem?
- This issue affects 2021-2025 Jeep Wrangler, RAM 1500, Dodge Durango, Jeep Gladiator, Jeep Grand Cherokee, and Jeep Grand Cherokee L models equipped with the 3.6L PSU Long Block engine.
- What is the typical mileage range when this engine problem occurs?
- The manufacturer communication indicates that this is typically a high mileage failure, occurring between 10,000 and 60,000 miles.
- How is the 3.6L engine misfire and valvetrain noise issue diagnosed and repaired?
- Diagnosis involves removing the valve cover(s) and visually confirming wear on the intake camshaft high lift lobe(s) and rocker arm(s) slider. The repair utilizes a special service kit containing a new intake camshaft, rocker arms, sealer, and gaskets, which is used instead of replacing the entire engine or long block.
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