In the end the customer only wants his equipment up & running as much as possible for as little as possible. They want no headaches, no waves, don't want to know nuthin from nuthin.

Part replacers really are a good marketing tool for us outside vendors. If used correctly, management should see directly through time vs parts that correct diagnosis is key to saving money & time- but let them come to that conclusion. If force fed the information- they'll question your intentions- I found this one out the hard way.