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    Ace Diagnostics

    4.6 (17 reviews)
    Closed 10:00 am - 6:00 pm

    Services - Ace Diagnostics

    Smog check

    Auto engine repair

    Auto exhaust repair

    Ace Diagnostics Photos

    Recommended Reviews - Ace Diagnostics

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    Reviews With Photos

    My car getting star certified smog certificate
    Garrett R.

    Best Price in town! I have gone to all the local smog stations and no one else beats their service! Always fast, and friendly! It's nice to have a trustworthy mechanic in town, I wouldn't go anywhere else!

    Michelle M.

    UPDATE: 08/22/25 Since I can't reply back to the owner on yelp, heres my reply. I was there when my car was dropped off at the shop. Please stop with the lies saying you guys were told to take the car home and test drive it because it had a weird sound! That was never said to anyone at the shop. I have video footage of all the interactions between my husband and the person we handed the keys to. The car only needed an oil change nothing more. It's obvious that the comment left on my review on yelp was only to try to cover their actions, I have a text message from someone that knows the person that drove my car to their house. They are asking for me to delete my YELP REVIEW because the mechanic is struggling with business, I will attach a photo of that conversation.

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    7 days ago

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    7 months ago

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    1 month ago

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    3 months ago

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    2 months ago

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    11 months ago

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    1 year ago

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    1 year ago

    Business owner information

    Photo of Kenneth M.

    Kenneth M.

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    4 months ago

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    8 months ago

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    Kenneth M.

    thanks for coming in.Look foward to seeing you again

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    6 months ago

    I went on my first visit to ACE today. Open every day which is nice. My old car passed win win open and passed. I will use again for sure

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    1 year ago

    Diego and his Dad were super professional and personable. It's the ONLY place my wife and I will take our car from now on! Bravo ACE!

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    8 months ago

    Business owner information

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    Kenneth M.

    thanks alot.Look foward to seeing you again

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    1 year ago

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    3 years ago

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    2 years ago

    Needed a smog quickly after work. They took care of me and were very pleasant to deal with. I will be back!

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    3 years ago

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    Ask the Community - Ace Diagnostics

    Review Highlights - Ace Diagnostics

    From OBD I, OBD II, Diesels, and everything else in between I've never had one of my vehicles fail smog with Ken.

    Mentioned in 3 reviews

    Read more highlights

    Jiffy Lube Oil Change

    Jiffy Lube Oil Change

    3.5
    (232 reviews)

    Very detailed and helpful service from Rolando. He went the extra mile! Checked everything out in…read morethe engine and I'm leaving there confident

    I had one of the worst service experiences in 20 years as a customer of Jiffy Lube…read more I first went to the Agoura Hills location, where I was told they didn't have the oil filter for my car and was sent to the Thousand Oaks branch. After driving there, I was met by an employee named Jose who was turning customers away. When I asked for a simple oil change, he told me there would be a 2-hour wait--which I agreed to. Then he added that only after those 2 hours would he check if they even had the correct oil filter. This is completely unacceptable. I asked him to simply scan my license plate or check the system--something that takes seconds. I've been a customer for over 20 years with 5 family vehicles, all on record. He refused. Instead, he repeatedly told me to wait 2 hours just to find out if the service could even be done, or to go to another location. This is not just bad service--it's laziness, poor attitude, and total lack of basic professionalism. Jose clearly had no interest in helping, and management at this location is just as responsible for allowing this level of incompetence. Bottom line: I will never return to this location or any Jiffy Lube again. Neither will my family, and I strongly advise anyone reading this to avoid this place. This kind of business attitude should not be tolerated.

    Ace Diagnostics - smog_check_stations - Updated August 2026

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