Do you have access to Mitchell1 Prodemand? If you are willing to share user/password (we can pay $250), please get in contact with us ASAP: email operation-charm [[at]] tuta.io or click to submit anonymously. (This is the last day we'll be asking)
Diagnostic Theory
The shortest route to an accurate diagnosis results from:
^ system knowledge, including comparison with a known good system.
^ system history including repair history and usage patterns.
^ condition history, especially any relationship to repairs or sudden change.
^ knowledge of probable causes.
^ using a systematic diagnostic method that divides the system into related areas.
The diagnosis and correction of noise, vibration and harshness concerns requires:
^ a road or system test to determine the exact nature of the concern.
^ an analysis of the possible causes.
^ testing to verify the cause.
^ repairing any concerns found.
^ a road test or system test to make sure the concern has been corrected or brought back to within an acceptable range.