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ISM, ISMe, and QSM11 – Valve Cover — Frequent Replacement

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Symptom Tree  t148

This is symptom tree t148
Cause Correction

Valve cover cracking due to excessive engine crankcase gases (blowby)

Check the engine blowby. Refer to Procedure 014-002 (Engine Testing (Chassis Dynamometer)).
 
Last Modified:  08-May-2008
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