I dropped my 1993 cadillac Eldorado off for a diagnosis to see why the catalytic converter is getting hot. Dropped it off on a Thursday, after not getting a call back by the next Tuesday I called to check on my car and to see if there were any updates, I spoke to a guy named john who could not give me any information about what was going on with my car, and said that he would get back to me within the hour. He never call me back. I call back there on Thursday and he still was unable to give me any update about my car. Later that day he called and said that my car needed plugs, wires and a coil. I informed him that I had just put plugs on the week prior. He said he would speak with the tech and call me back, that call never came. The next day I called again and after being placed on hold for 30 minutes, I was told that John was busy and would return my call within an hour.on Friday I called again to see if anyone could give me any information about my car. I spoke to John who informed me that my car needed 2 coils a mass airflow sensor and a ignition coil and he could do it for 1350.00, but he was waiting for parts. I informed him that I would just like to pay for the diagnostic and pickup my car. He offered to do just the 2 coils for 879.00 to save me money and increase my cars value if it runs better. I informed him that I just want the diagnostic report as I can complete the work myself. He informed me that because the catalytic converter had been taken off and tested and the other diagnostic work it would be total of 364.70 and that i would have to pick my car up tomorrow, after it was put back together. I was thrown off because I was next door at Wendy's and did not see my car in the bay or on the property when i rode thru their parking lot. I picked my car up on Saturday right at closing time and I was very confused by the diagnostic report because it did not make sense seeing how the coils are numbered and they have one numbered correctly and the other has numbers that are on two other separate coils. This would mean that it's either numbered wrong or I need three. Which brings me to the last issue, I did an oil change and noticed that my catalytic converter had one screw tight and the other not in properly as I had left it before I took it to Ruby Island for diagnostic. So if you don't want to be scammed out of you hard earned dollars don't go there. I hope this is an isolated incident and not their regular business pratice. I will be going to speak with management on their next open day.