JJ's Auto Service in Downey, CA, is known for providing affordable and reliable automotive services, including smog checks, auto repairs, and maintenance. They offer smog checks for all cars, SUVs, and trucks, including out-of-state, change of owner, diesel smog checks, and STAR smog certification. Customers appreciate the quick, no-appointment service, with some reviews highlighting how fast the process can be—sometimes completed in under an hour. The staff is friendly, honest, and professional, with over 20 years of experience, and the shop is kept clean and organized. The services extend beyond smog checks to complete auto repairs such as tune-ups, brake inspections, brake repairs, oil changes, transmission work, timing belts, and more. Only quality parts are used, and customers are assured of fair pricing. Many reviews mention that JJ's Auto Service is the most trusted mechanic in Downey, with some customers driving from other parts of town to receive their services. They praise the staff's honesty, transparency, and the thoroughness of their work. Customers also appreciate the free re-test when repairs are made at the shop. Overall, JJ's Auto Service is a highly recommended business that offers fast, honest, and affordable auto services with a focus on customer satisfaction.
Great service, Great Price, and reasonable waiting time.
November 2025
I have brought my cars here for all my needs it’s a straight business no funny stuff you pay great prices for great service and they definitely get the job done.
October 2025
I highly recommend this place they do outstanding work and will work with you with prices and have great service and are extremely friendly.
