Emissions testing service near Diamond Bar, CA

These guys were great! I would highly reccomend them. I had a 1:00 appt and was met with a can "do attitude". I was in and out in less than 30 mins. I just moved to town and when I found out they also do oil changes and tire rotations...there is no doubt that I have found my "go to" team here in Rancho. Please check these guys out you will not be disapointed!

I WILL NEVER TAKE MY CAR HERE AGAIN!!! I took my car in for an oil change and the next day I noticed something leaking on my garage floor. I took my car back and the owner proceeded to tell me that it was my "rack and pinion" and that "it needed to be replaced" right away at a cost of $1100! The owner was very apologetic and offered to show me what was wrong with my car (I am not a mechanic and would not know what I was looking at even if he did show me). I opted to take my car and get a second opinion and the other mechanic told me that THERE WAS NOTHING WRONG WITH MY CAR! He stated that someone had just spilled some oil all over the engine compartment and that my rack and pinion was just fine and had no leaks! Now I have to wonder if I was taken advantage of when I had Allstar Auto Center fix my brakes. The owner gave me the same apologetic song and dance that he would have to replace my rotors because they were in such bad condition. I went in there that time for a simple oil change and to have my tires rotated, and walked out of there paying $360. Now I wish I had asked for the old parts to know if those repairs were necessary.

My sons Mustang was in our garage seems like forever we tried to get it towed to a shop but they wouldnt send a flat bed tow truck even when we request one about 3xs so my husband decided to put the fuel pump in himself while at the Auto Zone my husband met Ali and Ali gave him some advice and his ph# and said that he was mobile.We then decided to have Ali put the pump in. You can tell he KNOWS what he's doing/talking about.Ali had the fuel pump in it didn't take him long at all. And the price was GREAT!! From now on Ali will be our Mechanic and no one else!! THANK YOU ALI!!!

Sam provides customer service including smog checks.

Honest and quality service, me and my sons come here, from oil changes to major work done ..they are fast, friendly, helpful with advice, good prices and they are open on Sunday's!! Thank you Luis and team for being the best mechanics in town!! Linda V.