TSBs

Upgrading Chevy Traverse torque tube gasket

March 18, 2025

This bulletin applies to 2020 Chevy Traverse vehicles.

Related To: Mitchell 1

This bulletin applies to 2020 Chevy Traverse vehicles. The fuel pump assemblies may have been produced with burrs inside the mixing tube that could prevent the transfer of fuel from the secondary side of the fuel tank to the primary side, which could obstruct fuel flow to the engine.

At low fuel levels, the engine may not receive adequate fuel and the engine may unexpectedly stall. The new fuel pump module kit is P/N 84479081. The torque tube gasket is P/N 84386387.

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.