Intermittent code 559 |
06-01-2025, (Subject: Intermittent code 559 ) Post: #13 | |||
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RE: Intermittent code 559 If it fails the leak down test and the high pressure pump checks out good. Ensure it is not the pressure relief valve going bad first.. then after that, Start capping injectors off.. You may have a bad tube and/or leaking injector(s). | |||
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