Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to...
Peterbilt technical service bulletin 16-044 for 2018-2023 Peterbilt 579, 2018-2023 Peterbilt 389 and 2018-2023 Peterbilt 567 and others.
- Bulletin number
- 16-044 (16-044)
- Component
- Suspension
- Summary
- Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to toggling over center during rough road conditions. With full suspension articulation, HCV bracket flexes and toggles over center the HCV linkage, which results in either deflated airbags or makes them unable to inflate. Fix-as-fail start date is 07/30/2024.
Owners of these vehicles have filed 5 complaints in the suspension category.
Vehicles covered
- Peterbilt 579 2018-2023 201820192020202120222023
- Peterbilt 389 2018-2023 201820192020202120222023
- Peterbilt 567 2018-2023 201820192020202120222023
- Peterbilt 520 2018-2023 201820192020202120222023
- Peterbilt 330 2018-2023 201820192020202120222023
- Peterbilt 337 2018-2023 201820192020202120222023
- Peterbilt 365 2018-2023 201820192020202120222023
- Peterbilt 348 2018-2023 201820192020202120222023
- Peterbilt 367 2018-2023 201820192020202120222023
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