2021 Jeep Wrangler GMET4 Engine Replacement TSB

This manufacturer communication, identified by NHTSA ID 10247903, provides essential guidance for technicians performing engine replacements on the 2021 Jeep Wrangler. Specifically, it addresses the procedures necessary when installing a new GMET4 long block engine. This information is crucial for ensuring proper function and avoiding potential issues after an engine swap.

Issue Description

When a GMET4 long block engine from a 2021 Jeep Wrangler (or older models) requires replacement, there are two key components that need special attention. These steps are vital to maintain the vehicle's original specifications and operational integrity. This specific guidance helps address potential discrepancies that might arise during the engine replacement process for the 2021 Jeep Wrangler manufacturer_communication.

Repair Procedure Summary

For any GMET4 long block engine replacement in a 2021 Jeep Wrangler, technicians must adhere to the following instructions:

1. Injector Wiring Harness: The injector wiring harness from the original engine must be carefully carried over and installed onto the new GMET4 long block. This ensures compatibility and correct electrical connections for the fuel injectors.
2. Fuel Pressure Sensor: The existing fuel pressure sensor should be replaced with a new one. The specified part number for this replacement is 68212572AB.

Following these steps, as outlined in this manufacturer communication, is critical for a successful engine replacement.

Required Parts

During the GMET4 long block engine replacement for the 2021 Jeep Wrangler, the following specific part is required:

• Fuel Pressure Sensor: Part number 68212572AB

Owner Action

If your 2021 Jeep Wrangler requires a GMET4 long block engine replacement, it is important to ensure that your service center is aware of and follows this manufacturer communication (NHTSA ID 10247903). This ensures that the correct procedures are followed regarding the injector wiring harness and the fuel pressure sensor replacement. This guidance helps prevent potential issues related to the 2021 Jeep Wrangler manufacturer_communication, ensuring your vehicle operates as intended after the repair.

Source: NHTSA ID: 10247903