Straight Line Auto
    Top Rated Auto Repair in Greeley, CO

    Auto Repair & Car Repair in Greeley, CO | Auto Mechanic, Brake Repair, Engine Repair & Check Engine Light Diagnosis

    Family-owned and operated. We provide honest diagnostics, expert repairs, and fair pricing to get you back on the road safely.

    Honest Pricing
    No hidden fees
    Expert Mechanics
    Years of experience
    Family Owned
    Local Greeley business

    Customer Reviews

    Don't Just Take Our Word For It

    See what our customers in Greeley and surrounding areas have to say about their experience with Straight Line Automotive.

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    Ela C
    Ela C
    May 22, 2026
    ★ ★ ★ ★ ★
    Replaced my brake pads, thank you!!!
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    Cesar Perez
    Cesar Perez
    May 22, 2026
    ★ ★ ★ ★ ★
    Thank you! Allowed me to drop my car off and were able to replace my brake pads last minute before a roadtrip
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    Lisa Albanez
    Lisa Albanez
    April 15, 2026
    ★ ★ ★ ★ ★
    Great place. I didn’t have $155 and the company trusted me enough to pay them when I got my next paycheck and I did that would highly recommend great people and an honest business.
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    Federico Molina Suazo Jr.
    Federico Molina Suazo Jr.
    April 1, 2026
    ★ ★ ★ ★ ★
    there a great company to check out to help you get back on the road safely they helped bring the suburban back to life after 5-6 months of it being down the even checked out what was need and needed repair definitely recommend them again
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    Carlos Montes
    Carlos Montes
    March 20, 2026
    ★ ★ ★ ★ ★
    Thank you for the great service. Jason, knows what he's doing!
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    Our Expertise

    Comprehensive Auto Repair Services

    From routine maintenance to complex engine repairs, Straight Line Automotive handles it all. We service all makes and models with precision and care.

    Automotive Service and Repair

    Oil Changes, Shocks/Struts, Brakes, Transmission, Clutch, and Charging systems.

    Four Wheel Alignments

    Precision Four Wheel Computer and Laser Alignments to keep your vehicle driving straight.

    Tire Sales and Installation

    Most Major Tire Brands, Custom Wheels, and complete Tire and Wheel Packages.

    Custom Fabrication & Install

    Installation of suspension systems, Lowering and Lift kits. Fabrication for custom suspension installs and engine swaps. Partners: Summit Racing.

    MotorSports

    Upgrading and upfitting UTVs, Suspension Springs, Clutch Upgrades, Maintenance and Repairs. Supported: SuperATV, Polaris, CanAm, Honda.

    Performance Upgrades

    Engine performance upgrades including tunings and engine building, Full suspension upgrades. Partners: Summit Racing, Speedway, Jegs, Custom Offsets.

    Electronic Diagnostics

    In-depth computer diagnostics. Check engine light, ECM, TCM, BCM troubleshooting.

    Next-Level Power

    Performance Tuning & Upgrades

    Take your vehicle to the next level. As an authorized dealer and installer for the industry's leading performance brands, we offer expert tuning, parts, and installation to unleash your car's full potential.

    Performance Tuning

    Custom ECU tuning and engine calibration to maximize horsepower, torque, and overall performance.

    Authorized Dealer

    We are an authorized dealer for top-tier performance brands, ensuring you get authentic, high-quality parts.

    Expert Installation

    Our certified technicians professionally install all performance upgrades with precision and care.

    Exhaust Systems

    Upgraded exhaust systems for better flow, increased power, and an aggressive sound profile.

    Suspension Upgrades

    Coilovers, lowering springs, and sway bars to improve handling and track readiness.

    Track Prep

    Comprehensive vehicle preparation and safety checks for track days and high-performance driving events.

    Authorized dealer for major brands
    Authorized COBB Protuner
    10+
    Years Experience
    100%
    Honest Pricing
    5★
    Customer Rating

    About Us

    Greeley's Most Trusted Family-Owned Shop

    At Straight Line Automotive, we believe that auto repair shouldn't be stressful. As a family-owned and operated business in Greeley, Colorado, we treat every customer like a neighbor and every car like our own.

    Our team takes the time to show you exactly what's wrong with your vehicle and walks you through the necessary repairs. No high-pressure sales, no unnecessary upsells—just honest, straightforward automotive care.

    • Transparent, upfront estimates before any work begins
    • ASE-certified mechanics with years of experience
    • State-of-the-art diagnostic equipment
    • Commitment to doing the job right the first time

    Meet the Owners

    "Hi I'm Logan. I've been an auto tech for many years and have tons of experience across all makes and models, specializing in GM and Toyota. I have over 7 years experience in the COBB protuning field as well as other tuning platforms like HPtuners, Fueltech, Hondata, etc. As well as 2 years of experience in the newer Subaru FA motors with DAM."

    "Hi, I'm Jason. I was born and raised right here in northern Colorado. My goal for this business is to provide honest, reliable service that keeps our customers happy. Its important to me that we treat people right, and keep local business, local."

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    Got Questions?

    Frequently Asked Questions

    Find answers to common questions about our auto repair services, pricing, and process.

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    FAQs

    Engine repair and performance tuning are available for both GM and Toyota vehicles. Repairs include everything from basic maintenance to more complicated jobs like rebuilding and tuning engines. Work is done by a highly experienced technician who specializes in GM and Toyota models, so you can expect precise and reliable results whether your vehicle needs a simple fix or advanced performance upgrades.
    Walk-ins are welcome for car repairs, and you don’t have to book an appointment ahead of time. If you want to make sure you don't have to wait, scheduling an appointment is a good idea, but it’s not required. The shop is open from 8 AM to 5 PM, Monday through Friday, and anyone can stop by during those hours.
    Yes, oil changes, alignments, and transmission work are all available. Routine maintenance like oil changes and more advanced repairs such as transmission replacement or engine work are handled here. You can also get your brakes serviced, have diagnostics run, or take care of things like shocks and struts. You can walk in during regular shop hours or set up an appointment if you want to plan ahead.
    There’s a $135 fee for a check engine light diagnostic. If you decide to have the recommended repair done after the diagnosis, that diagnostic fee is waived, so you don’t pay extra for the initial check. This way, you only pay for the actual repairs your car needs.
    We handle a wide range of car repair services, from basic maintenance like oil changes and brake pad replacements to more complex jobs like engine work, performance tuning, and transmission repairs or replacements. Other services include alignments, shock and strut repairs, climate control fixes, and general automotive diagnostics. Whether it’s something quick or a more involved project, we work on most makes and models and focus on getting your car running safely and reliably. If you’re not sure exactly what your car needs, we can run diagnostics to figure it out, and if you go ahead with the recommended repair, you don’t have to pay extra for the diagnostic service.
    It's possible to get a general estimate over the phone or email if you can describe the problem or needed service, like brake replacement or an oil change. For more complex issues, an exact estimate usually requires seeing your vehicle in person, since some problems can't be fully diagnosed without a hands-on look. You can call, email, or use the website’s contact form to ask for an estimate, and the team will give you as accurate a ballpark as they can based on the info you provide.
    Brake repair is available here, including both brake pad and rotor replacement. The starting price for this service is $69.99, with parts and tax not included in that price. Whether you need a quick fix or a full replacement, the shop can handle most brake issues to help keep your car safe on the road.
    Alignments start at $129.99 on most vehicles so if your vehicle requires it, we’ve got you covered. Pricing covers front and rear alignment check and adjustment, but if extra repairs or parts are needed, those would be separate. If you have questions or want an exact quote for your vehicle, just give us a call or send a message.
    Brake repair services, like pad and rotor replacements, start at $159.99 before parts and tax. The final cost depends on the make and model of your vehicle, as well as which parts need to be replaced. If you have questions or want an estimate based on your car, just call or send a message and you’ll get a straightforward price.
    Brake pad and rotor replacement typically starts at $159.99, with parts and tax extra. The price covers removing the old pads and rotors and installing new ones to get your car stopping safely again. Every brake issue is a little different, so the exact cost can vary depending on what your vehicle needs—sometimes it’s just pads, sometimes rotors too, or other work. If you want to know what your brake service will specifically cost, a quick evaluation can find the exact issue, and you’ll get a clear estimate before anything starts.
    Brake pad and rotor replacement usually starts at $159.99, plus parts and tax. The final price depends on your specific vehicle and any extra parts or labor needed. If you’re not sure what your car needs, a quick diagnostic can help figure it out and give you a clear estimate before any work starts.
    Brake pad and rotor replacement services start at $159.99, with parts and tax not included in the base price. The total cost will depend on the specific vehicle and the type of parts needed. If you want an exact estimate for your car, you can call, email, or use the website to get in touch and we’ll be happy to help.
    Yes, new tires are for sale and installation here, with most major brands available. Help is provided to pick the right size and type of tire for your vehicle, based on what you drive and how you use it. If you're not sure what fits or what brand works best, just ask—advice is offered to make sure you get tires that match your needs and budget. Tire installation, balancing, and wheel alignment can all be done at the shop for a complete, hassle-free service.
    Yes, custom suspension fabrication and installation of lift kits or lowering kits are available. The shop works with a range of vehicles and can upgrade suspension systems for improved handling, a taller ride height, or a lowered look, depending on what you want. Options include installing coilovers, lowering springs, sway bars, and full lift kits. All work is done by experienced mechanics to make sure everything fits right and works how it should. Custom fabrication for unique setups is also available, so you can get a suspension that’s built just for your vehicle and driving style.
    All repairs come with a warranty on both parts and labor, so you can feel confident in the work done on your vehicle. The exact length and coverage can depend on the specific part or service, but most repairs include at least a standard warranty. If you have questions about what warranty applies to your service or parts, just ask and everything will be explained up front before any work begins.

    Get In Touch

    Contact Us

    Contact us today to get a free estimate or learn more about our services. We're here to help keep your vehicle running smoothly.

    Hours

    Mon - Fri: 8:00 AM - 5:00 PM
    Sat: 10:00 AM - 3:00 PM
    Sun: Closed

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