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    Master Auto Service

    3.7 (3 reviews)
    Closed 7:00 am - 5:30 pm

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    Response quality

    Excellent

    Response time

    30 minutes

    Services - Master Auto Service

    Check engine light

    Engine oil light diagnosis

    Auto general diagnosis

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    Auto noise diagnosis

    Tire Pressure Monitoring System diagnosis

    Auto no-start diagnosis

    Auto vibration diagnosis

    Auto diagnosis or inspection

    Auto pre-purchase inspection

    Auto maintenance

    Auto fluids and filters maintenance

    Fuel system cleaning

    Oil changes

    Auto repairs

    Auto battery or electrical system repair

    Auto brake repair

    Auto engine repair

    Auto HVAC repair

    Auto light repair

    Auto steering and suspension repair

    Auto transmission repair

    Routine automotive maintenance

    Transmission leak inspection

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    Recommended Reviews - Master Auto Service

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    8 years ago

    Very honest and up front with prices!! When they give a day and time that they say they will look at your car they do!

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    8 years ago

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    13 years ago

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    Ask the Community - Master Auto Service

    Valvoline Instant Oil Change

    Valvoline Instant Oil Change

    (18 reviews)

    I trust the guys here at this Valvoline location. They might not always be the cheapest but I…read moreoperate a very busy lifestyle and convenience is where it's at for me. Whether it's a quick oil change (usually what I come here for) or a transmission fluid flush, I know I can always count on these guys to do a good job in a short amount of time with no appointment needed. The guys here are friendly and helpful. They also don't push too hard to sell you any additional services that are "due." If you're just getting a simple oil change or a fluid flush, I definitely recommend Valvoline to anyone here in the valley!

    It pains me to write negative reviews, but people need the resources to make decisions…read more I recently visited Valvoline after needing an oil change and loving that I didn't need to get out of my car. As a parent, this convenience seemed amazing. Upon my arrival, 2 cars were in front of me and I was greeted within a few minutes and the process explained. Im thinking to myself, "wow, I like this." I'd also gotten recommendations and thought I'd be paying less than my previous establishment. Pull in for my turn and I'm told my oil change would be $99! I'm already in the bay and was not about to leave at this point. (This was $20 more than my previous establishment that included a 16 point vehicle inspection, tire rotation and car wash). I was immediately told I needed a new air filter, which was coincidentally on sale. I was shocked because it had just been changed 6 months ago (for the first time I might add) and my previous establishment told me they don't even check it, they just recommend per mileage which happened at 60k miles. So I obliged as they showed a dirty filter. Toward the end of my visit, the service manager mentioned my fan was still running but proceeded as though this was normal. I'm no car person but I also hadn't driven much in the last 2 months so I thought maybe my car was just trying to cool. I get home and it ran for 4 minutes. Over the next 18 hours, I made 3 trips each resulting in 4 minutes of my fan running each time. My check engine light also came on. As I became nervous and needing to return to work the next day, I managed to find a mechanic to take a look. As I explained the scenario, he immediately noticed a wiring that was completely unhooked (picture attached after hooked back up to show location). Thankfully I didn't wait because who knows what damage could have evolved. I called the 1-800 number. They apologized and offered me a coupon and forwarded to the manager. He calls me and blames training by the previous manager and claims he will talk to the techs. I explain that he was the one working on my car and he says "I'd have to watch cameras." Luckily I *only* spent $111 for the 20 minute convenience of not getting out during covid, but it's clear they only care about making money as quickly as possible and not about potential expensive mistakes along the way. I definitely won't be returning.

    Walla Walla Transmission Specialists

    Walla Walla Transmission Specialists

    (7 reviews)

    Thanks to a recommendation from a good friend Walla Walla Transmission came to my rescue. They…read morewere very helpful and got me back in the road much quicker than I anticipated. Highly recommend their services!

    On 2/4/2019, I took our Subaru Outback to Walla Walla Transmission Specialists to have the tires…read morerotated and a fluid leak in the rear end checked. They did not inform me that there would be a charge to inspect for the leak and I did NOT authorize this charge. After inspecting my car, they gave me a written estimate to remove and replace the rear differential cover for $595. I consulted with my friend, who is a master mechanic, and he stated it was highly unlikely that this repair would be needed. I decided to get a second opinion and drove over to the Harley Swain Subaru dealership in Hermiston (over an hour drive each way). After their inspection, they found absolutely nothing wrong with my car and performed the inspection FOR FREE!!! They also stated that this type of repair was almost unheard of. I returned to speak to the owner of Walla Walla Transmission and expressed my dissatisfaction with their analysis of the problem. I also requested a refund of the inspection fee, as I did NOT authorize the charge. The owner was unapologetic and stated that the suggested repair was just 'their opinion' and did not seem to care that their analysis of the problem was wrong. We try to stay local and support businesses here in Walla Walla, but always recommend getting a second opinion. My experience with dealers has been negative, but to my surprise, this Subaru dealer is the exception. They have been honest, knowledgeable and very helpful. We have been extremely happy with Harley Swain and highly recommend them to other Subaru owners -- it is definitely worth the drive.

    Master Auto Service - oilchange - Updated May 2026

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