I was on my way to Sunnyvale for an interview at 10am. The car broke down in Los Banos around 12am. I smelled something burnt and the engine start to have weird sound. No repair store opened at that time in Los Banos and there is not a lot of repair shops for me to choose there. So I asked the tow truck guy tow me over to Gilroy. I choose Preferred Automotive because they open at 7am (the earliest one).At Preferred Auto, they charge me around $100 for diagnostic. At around 3pm they fixed my car. They said a screw was not tight enough, and it causes some internal burning to the burning coil (i think). They showed me the melted part in my car, and they took care of it. Replaced the damage part with new part. The total cost including diagnostic is around $500. I did not have time to check the price with other auto repair shop. I drove another 300 miles afterward and the car works fine.One thing that I am pretty impressed with Preferred Automotive is1. They can get a replacement for my damaged part quick!2. They are pretty good at following up with customer.Things to improve on:1. Work on the customer service. I broke down my car, slept outside the shop for a night, and needed to hurry up for an interview. The guy at 7am doesn't show some sympathy. I guess it will make my experience better if you care about me more.2. It will be great if they can show me how much it cost for other shops to repair the same thing. (They can just call up other repair store and get a quote).