Inspecting Jeep purge tube

This bulletin applies to 2021-2022 Jeep Grand Cherokee vehicles built on or after Nov. 11, 2021, and on or before Jan. 1, 2022, equipped with a 5.7L V8.

Mike Mavrigian

Related To:

Mitchell 1

Sept. 2, 2025

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Example of the tube pushed too far into the elbow. Note that the bead on the tube is not visible.

This bulletin applies to 2021-2022 Jeep Grand Cherokee vehicles built on or after Nov. 11, 2021, and on or before Jan. 1, 2022, equipped with a 5.7L V8. The MIL may be on, accompanied by DTC P0441 (EVAP purge system performance) and/or P0452 (EVAP pressure switch “A” stuck closed).

Correct position of the tube. Note that the bead is visible at the edge of the elbow

Inspect the purge tube at the elbow on the intake manifold. The purge tube may be inserted too far into the elbow.

Another view. Note that the bead is visible.

Pull the nylon tube from the rubber elbow until the bead is positioned at the edge of the elbow. Make sure that the elbow is seated properly at the intake manifold. Clear DTCs.

About the Author

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.