Worn CAS and cam? posted by let's go A's on April 28, 2008 at 04:53 PM
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moon cog on the CAS was broke completely off. The spline on both the CAS and cam were worn badly. Sometimes the car seemed OK but always had hesitation issues. You have to replace the cam and CAS. I have heard its caused from a head machineing error on some of the early models, and/or assembly without lubrication on the splines.