Root Cause Analysis
By Eric Bakke
Anyone that does automotive engines in their shop has likely dealt with a valve train noise complaint from a HEMI owner. In some instances, this complaint is why you accepted the heads or the engine work. In some instances, this is the misfortune that means you are doing re-work.
This article should help you to understand the changes and ongoing challenges that are dealt with when trying to address the noises or the correct the malfunction codes that you are seeing.