Cavalier Mazda

3-20-2017 they charge me $120.00 to check engine light to tell me If the problem they find is not the problem then they will charge me another $60.00 to get an overall check done. They told me ERG part will cost $692.40 plus labor another $200.00 more dollars then on top of that they did not have the part wanted to keep my car until Wednesday with no courtesy car available then proceed to tell me about renting a car. This is not good customer services why would you keep my car for three days and leave me with no sort of transportation at all. Now I had to pay for the part before they even order it then go back when the part come in to the service dept. This whole process needs to be look at because you are charging me close to $900.00 and can not guarantee me that is this the correct part that I need. If this is not the part I have pay another $60.00 to get an overall service check something is wrong with this picture.