LIARS and INCOMPETENT is how I will describe my ex...

LIARS and INCOMPETENT is how I will describe my experience with Pep Boys. This is the worst experience I have ever had with a car repair shop. The mechanics are not ASE certified to work on your vehicle. They do not know how to read engine codes and they promise you they know what the problem is before giving a proper diagnostic test. When the problem is not solved they put a disclaimer "may or may not solve the problem'. My location is in Phoenix, Arizona - 2501 W. Van Buren. The Service Manager was Yanette, Susana. The Service Manager is Isai and the mechanic was David Lucero. I took my car into the shop due to the check engine light. Without a proper diagnostic test Service Manager Yanette misleadingly told me the code reading was a 'misfire'. She was adamant and confident it was the spark plugs and later she stated the spark plug wires should be changed. After $591.00 in service the very next day the car ran worse than when I brought it in and the check engine light came on again. AFTER ONE DAY. When I returned the car I spoke to Service Advisor Susana who was very rude and defensive standing by the bad job of the mechanic. She kept saying the code is gone - well, the code is gone because I used a fuel cleaner hoping this would help the car run smoother. Susana refused to help me. I asked to speak to the Service Manager Isai. This was no better. Isai looked irritated and again behaved in the same manner as Susana. I was so upset but I remained calm. I left and then I decided to fight for what was right. Pep Boys charged me almost six hundred dollars for unnecessary work. They were misleading in the information given regarding the codes. None of the Service Advisors seemed to want to help me as the consumer. This started in March 2018 and finally in July 2018 I was begrudgingly given a $105 dollar return. The Service Advisor Isai lied and stating I never brought up the problem which is not true. I brought the car back the very next day. I have been trying to resolve this issue. I want my full refund of $591.00 dollars returned to me. I think Pep Boys are criminals who hire ineffective and unlicensed mechanics to work on consumer cars without their knowledge. I asked if the mechanic was ASE certified and could they provide documentation and Isai said they couldn't. Susana stated they could provide that information they have it on file. So Isai lied. Neither the mechanic nor Service Advisor Yanette are working at this location. They are cheats and liars. If I have to go to small claims court to receive the rest of my refund I will. I finally took my car to Firestone who replaced the intake gasket and two cyclinder coils which was the reason for the misfire. Pep Boys performed unnecessary work and mislead the customer. I want my refund.