Chrysler Pacifica 2018–2023 — technical service bulletin
Bulletin 9100133 · NHTSA communication 10239854 · issued May 2, 2023
Technical service bulletin
communication type
Back Over Prevention
component
2018–2023
model years
23
vehicle entries
Official summary
ROCKER ARM ASSY - ROLLER ROCKER Case 1.- Before replacing the intake or exhaust rocker arms due to an abnormal ticking noise, please check that the INTAKE Hydraulic Lash Adjusters are not "collapsed". If a collapsed INTAKE HLA is found, replace all INTAKE HLAs on the suspect cylinder head (no need to replace rocker arms). The noise can occur at low or high RPMs, and at low or high temperatures. There are no Diagnostic Trouble Codes (DTC)s present. Case 2.- If the INTAKE camshaft or INTAKE rocker arm has excessive wear on the high lift profile (Rocker arm: slider, Camshaft: central lobe), repla
Vehicles covered
- 2018 Chrysler Pacifica
- 2019 Chrysler Pacifica
- 2020 Chrysler Pacifica
- 2021 Chrysler Pacifica
- 2022 Chrysler Pacifica
- 2023 Chrysler Pacifica
- 2020 Chrysler Voyager
- 2021 Chrysler Voyager
- 2022 Chrysler Voyager
- 2023 Chrysler Voyager
- 2018 Jeep Wrangler
- 2019 Jeep Wrangler
- 2020 Jeep Wrangler
- 2021 Jeep Wrangler
- 2022 Jeep Wrangler
- 2023 Jeep Wrangler
- 2019 RAM 1500
- 2020 RAM 1500
- 2021 RAM 1500
- 2022 RAM 1500
- 2023 RAM 1500
- 2022 RAM Promaster
- 2023 RAM Promaster
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.