How do I check actual miles on a 90ex. Is there any trick to finding out roll back. Any advice would be nice thanks. Also i noticed a clicking noise on engine idle. Its a high pitched noticebly loud clicking noise. Its also there when engine rpms pick up what could this be?? It comes from the right side of the engine bay.

 

if by right side you mean passenger side the most likely culprit (if it does it at a stand still) is the cap/rotor/distributor or a combination there of.... the only real way to check rollback on something that old is to either take the speedo out and see if it's been tampered with OR run a carfax on it and see what the last reported mileage was....

 

thanks