Talked to the customer and found out that the instrument cluster dimmer switch was out of adjustment. Explained how to adjust brightness of dash lights and all is working fine now.
The customer was told that if the noise was very obvious to locate there would not be a charge, but if we needed to bring the vehicle into the shop and put it on a hoist there would be a charge only if he decided not to fix it. In alot of cases the diagnostic fee is waivered if we repair the vehicle. The customer had mentioned at the time the appointment was made that he had been searching the internet for an answer and also was looking for parts on Rock Auto. After I sent a Tech with him on a test drive and we determined the vehicle needed to be brought into the shop and lifted on a hoist for further diagnostics, He then let us know that his intention was not to have us repair the vehicle but wanted a free diagnostics so he could buy the parts online and fix it himself. I am sorry you feel this way, but it's impossible to run a business and not charge for a service.