Spark Knock/Engine Symptoms Customers may experience the following: ● Knocking or pinging noise coming...
Jeep technical service bulletin 09-015-25 for 2018-2022 Jeep Grand Cherokee, 2018-2022 Jeep Wrangler and 2020-2022 Jeep Gladiator.
- Bulletin number
- 09-015-25
- Component
- Engine
- Summary
- "Spark Knock/Engine Symptoms Customers may experience the following: ● Knocking or pinging noise coming from the engine upon acceleration. This bulletin involves cleaning the piston heads and cylinder head combustion chambers to resolve a spark knock condition being caused by oil intrusion through the PCV system."
Owners of these vehicles have filed 1,039 complaints in the engine category.
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