Engine repair service near Hacienda Heights, CA

The AAMCO External Diagnostic Service is the best transmission checkup available anywhere. Our Centers’ certified technicians can get to the bottom of any transmission problem. With today’s more complex, computer-controlled transmissions, it takes a real expert to be able to diagnose a transmission problem correctly. Getting that diagnosis right can save you a lot of money. The AAMCO External Diagnostic Service is a systematic and comprehensive external evaluation of the overall performance and condition of your transmission. A trained technician will check the level and condition of your transmission fluid: •A low fluid level may indicate a leak •Contaminated fluid has water or particles in the fluid. •Burnt fluid indicates damage from overheating. •Varnished fluid has been overheated repeatedly. •Normal fluid is reddish-brown and translucent, depending on transmission type, with no particular odor. The technician will also check the level and condition of transfer case and differential fluid, where applicable. The technician takes your car on a road test, to experience first-hand any problems you have noticed, and to evaluate your car's performance. Your vehicle will be placed on a lift to inspect the controls under the vehicle for any possible cause of the problem external to the transmission. Finally, the technician will scan the computer for trouble codes*. From these tests, the expert transmission technicians at AAMCO centers can determine what type of problem you might have, and make a recommendation for whatever service is necessary. That comprehensive approach to diagnosing the source of the problem is what sets AAMCO apart.

These fellas here are extremely helpful and know their biz. Highly recommended. Matthew Marusak

Amazing work. The owner Kenni is an amazing woman. It makes me feel so comfortable taking my car somewhere to get an oil change especially being a woman because I know they will always be honest with me. I will always come here for any of my car needs.

I was on vacation with my family and I had a tire that kept losing air. This place hooked me up with a new tire valve and got me back on the road in no time! I came in with 20 minutes until closing time and they still provided fantastic service! Great customer service. Highly recommend this place for any tire needs! -Kristie Phillips