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    Only Smog

    4.7 (43 reviews)
    Open 9:00 am - 2:00 pm

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    Went to Only Smog on a Friday. Called ahead to make sure they were open and accepting clients without an appointment. The owner was able to accommodate me same day and told me to come on down. The business complex the business is in is a bit confusing to get around as you have to zig zag through the rows of buildings until you get to the last, only smog is the very last space on the left. It was hard to get to as there were many trucks and cars from other businesses parked everywhere and the streets are narrow. The process of getting smogged was straight forward. I had asked about the check-in on deal offered on Yelp but was told it was out dated and wasn't being accepted. Although this was a bit of a bummer, the price was still slightly better than some offered around town. The process took about 15 minutes and I was ready to go about my day. All in all, I would recommend getting a smog check here. He is Star certified and it's always nice to help a small business. Only knocking a star because of the outdated/invalid check in offer and the fact it was difficult to find. The experience overall was good and the owner was nice.

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    Antonio R.

    DON'T COME HERE FOR SMOG CHECK. the guy who works here is a scam artist. He looked and my vehicle and told me there was no problem before he started the SMOG check, then did it and told me that he had to fail me because my car was missing "a sticker with a number". Super rude, huge lenguage barrier and bad customer service. I ignored the bad reviews on Google and yelp, give him the benefit of the doubt and came anyways and paid the price. TRUST ME DON'T DO BUSSINESS HERE.

    This is a view from outside of the business.
    Hayden B.

    Really nice there was no wait for the smog check. The smog check itself went by really after the whole process only took about 20 minutes! Super fast!

    Sam R.

    Great place to go and get a smog test for your vehicle. Friendly guy with competitive pricing, with quick service. Thank you!

    Quick service,  owner is very nice. Even recommended the mechanic next door.
    Eduardo R.

    Fast service, owner operated and he's super nice. Will explain the whole process and was $50. Its forty for most cars but he explained how its more for older cars and why that is. Very knowledgeable and can even recommend a great mechanic next door.

    Shayla A.

    This is my 2nd time here and I love it...the price is the cheapest around....and I'm always in and out quick....plus great customer service

    Edgar G.

    Great Service, clean shop and ofcourse great price! I'll definitely be back here. Also, it was quick.

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    Review Highlights - Only Smog

    Fast and easy experience very professional.

    Mentioned in 3 reviews

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    Perris Valley Kia

    Perris Valley Kia

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    Hector Found the Tellaride we were looking for and saved it…read morefor us. No hassle in and gone hour and 35 minutes. Hector is very professional and knowledgeable of his products. Hector was always In contact And not annoying. Hector it was a pleasure working with you. Ray and Robin Paci

    I purchased my 2016 Kia Optima from this dealership as a pre-owned vehicle about 4-5 years ago, and…read moreit currently has only around 90,000 miles. I've now had both passenger-side windows fail -- first the rear passenger window stopped working, and now the front passenger window completely dropped into the door and won't roll back up. I'm struggling to understand how a vehicle with under 100k miles ends up with multiple window motor/regulator failures. After doing research, I found many owners reporting similar issues, which makes this seem like more than normal wear and tear. I reached out to both the dealership and Kia hoping for some goodwill assistance due to the repeated failures. Instead of receiving meaningful help, I was told I needed to pay for diagnostics and was given an estimate of roughly $2,300 to replace both passenger-side window assemblies and motors. What made this experience even more disappointing was feeling like dealership management showed little interest in helping despite me purchasing the vehicle through them and being a long-term customer. I asked whether any assistance, goodwill repair options, or cost-sharing could be considered and was essentially told I would be responsible for the full amount. I was already unhappy with the price I paid when I originally purchased the vehicle and felt I paid a premium expecting quality and support. Having major repeated failures like this before 100,000 miles and then receiving no meaningful help has been extremely frustrating. I expected better reliability and better customer care.

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    J's Family Auto Center

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    Honest, knowledgeable, Quality service. I bring all my family's cars here and we are happy with…read moretheir service

    My family and I have been loyal customers of this shop for years, trusting them with major repairs…read morelike starters, blowers, oil changes, and kill switch removals. Unfortunately, my recent experience with a fuel pump replacement has completely destroyed that trust due to hidden fees, unresolved mechanical issues, and aggressive staff behavior. ​Unfair Diagnostic Charge: I was charged a $175 diagnostic fee on top of having the repair work completed directly with them. ​Unresolved Work: Immediately upon picking up my vehicle, the Check Engine light was on. I raised the issue before leaving. After they cleared the code, my car shut off multiple times on the drive home, and the light came right back on. ​Broken Policy Commitments: I brought the car back to Gab, who attempted to fix it. Jr. then informed me that if the light returned, the customer-provided part was defective. He explicitly assured me that if I brought in a replacement part, they would swap it out. ​Hostile & Unprofessional Service: When I arrived with the new part, Xavier refused to honor what Jr. had set up. He had very poor customer service, became combative on the phone with Jr. while trying to insist on full labor charges, and hung up on him. He then aggressively demanded I pay full labor again--even though no charge was applied for the previous follow-up visit. ​The internal miscommunication, changing rules, and hostility from staff are completely unacceptable. A long-term loyal customer should never be treated this way.

    Mission Viejo Transmission & Auto Repair - POV

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    Service completed: CVT Transmission fluid exchange and diagnostic…read more Purchased Service through Groupon, Nissan quoted me just for the diagnostic over $250. Mission Viejo transmission completed diagnostic and fluid exchange for the price of the Groupon I had such a great experience at Mission Viejo Transmission & Auto Care! From the moment I walked in, everyone was friendly, professional, and incredibly knowledgeable. They took the time to explain everything clearly, answered all of my questions, and never once made me feel uncomfortable or pressured. As a woman, taking your car in can sometimes feel intimidating, but that was absolutely not the case here. The staff was kind, honest, and respectful throughout the entire process. I truly felt like they had my best interests in mind and were focused on helping me make informed decisions about my vehicle. It's rare to find a shop that combines expertise with such outstanding customer service. I left feeling confident that my car was in good hands and grateful for how well I was treated. I highly recommend Mission Viejo Transmission & Auto Care to anyone looking for trustworthy, honest, and genuinely caring automotive professionals!

    I highly recommend Mission Viejo Transmission Auto and Repair! I recently brought my car in for an…read moreoil change, and once again, they provided incredible service. Everyone is always so kind, professional, informative, and genuinely helpful. What really stood out to me this visit was that I had some white paint scraped along the side of my car from accidentally sideswiping a pole. They went above and beyond and helped remove the paint for me, which I truly appreciated! It's hard to find an auto shop where you feel like you can trust the people working on your car, and that's exactly how I feel every time I come here. They consistently take the time to explain things, answer questions, and treat you with kindness. Great service and even better people. Definitely recommend!

    Hybrid 911 Prius - Prius hybrid battery rebuild

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    As Prius owners, there is nothing scarier than the "Red Triangle Of Death" or that wonderful sudden…read moreloss of engine power on the freeway. This time I had the second scenario happen to me on the way home. As a NASA & Jet Propulsion Laboratory Engineer i have worked on a wide array of instruments, components, and even entire spacecraft like the Mars Rover, but I am embarrassed to admit I have no idea how to fix my Prius when it has a problem. The great thing is.... Valentine does!!! That's why I only trust Valentine and his crew to diagnose, troubleshoot, and repair my vintage 2007 Toyota Prius. It has 200K miles on it and I am hoping to put another 200K on it with Valentine's help. This time it was a bad fuel pump that was damaged after I ran out of gas and tried to start the car several times. Now, let me ask an engineering & design question. Would you integrate the fuel pump inside of the fuel tank so that when (not if) the fuel pump fails, you have to replace the entire gas tank assembly?? After all... this is not rocket science!!! Who designed this??? Valentine was very accommodating and explained the problem and the solution to me before any work started. This makes any customer confident that he brought his vehicle to the right place. I highly recommend these guys to work on your hybrid vehicle.

    Needed a quick diagnostic and repair. Got the red triangle on check engine light on my Gen 2 Prius…read more They were able to attend to my car on short notice and fix the issue. They were forthright with what it would take to repair the car and the cost. It was a little more than I would've liked to pay, but they got it done right away and even pressure washed my engine compartment. I recommend the shop. In my experience, they are honest guys.

    Only Smog - smog_check_stations - Updated August 2026

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