Machine shop services service near Silver Spring, MD

These days it's hard to find a Mechanic/car repair shop that one can trust to do professional work and customer service. In June 2015 I bought my 2000 GMC SUV Jimmy to Mark Auto Service of Seat Pleasant, MD PROBLEM: engine misfire. hard to start in the morning. Told I needed a fuel pump COST: $500. Two days later, returned with same problem. 'Said' Zaatra (shop owner) now tell me I need to replace the fuel Injector. COST: $540. Return back in 2 days at the shop. Problem not fix. It's has cost me $1040.00 for two misdiagnosed's. I took it another auto repair facility...they were able to discover the problem and FIX IT. Turn out all I needed was a 'TUNE UP' (Spark plugs) MARK AUTO SERVICE refused to refund. As a CONSUMER...I cannot allow this shop owner Mark Auto Service get away without taking Legal Action.

I got a recall notice saying my airbag could deploy without warning and the repair department at Koons tells me not to worry about it. REALLY?

Had been going to this guy for 15 years. In April 2014 Took my car in, guy kept if first 2 weeks, didn't address the problem. Afterwards I had to return the vehicle 6 times and he still didn't repair the problem. Took the car to the dealer who found the problem and said GAC had installed a cheap aftermarket part (not OEM) that was incompatible with the vehicle that doesn't take aftermarket parts. This guy ripped me off and refuses to reimburse me. Also I asked from the beginning for the parts he replaced, he lied saying I never asked for the parts. He did the same thing to my daughter. I would never take my car back to this guy after the way he ripped me off.