Customer's complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or...
Jeep technical service bulletin S1918000008 Rev. for 2018-2020 Jeep Wrangler.
- Bulletin number
- S1918000008 Rev.
- Component
- Engine and engine cooling
- Summary
- Customer's complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above codes, check for the condition listed above.
Owners of these vehicles have filed 213 complaints in the engine category.
Vehicles covered
- Jeep Wrangler 2018-2020 201820192020
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