Hummer Repair & Service in Urbana, OH

A HUMMER isn't just a car. It's a statement. And just like its owner, every HUMMER is unique. Here at Apex Transmission and Auto in Urbana, OH, we are proud to provide exceptional and personalized service for HUMMERs.

Trustworthy Hummer Repair

Hummer is an American automotive brand originally known for producing rugged off-road vehicles, which are characterized by their bold design and formidable performance. Off-road adventures are what HUMMERs were born for, but they also demand specialized care.

Why Apex Transmission and Auto

Our experienced technicians are HUMMER specialists, passionate about keeping your beast of a car from conquering any terrain. Whether you own an H1, H2, or H3, our team has the expertise to handle all your HUMMER's needs. Check out our Services page to learn more about what we can do for your vehicle.

Unlike other auto service shops and dealerships, we focus on the HUMMER experience. We prioritize exceptional customer service, and you will notice that upon your first impression. Our friendly staff will answer your questions in detail, and our technicians will work diligently to get you back on the road (or off-road) quickly. We come to work every day because we enjoy the interactions with our customers, and we are passionate about delivering professional work.

HUMMER Service Near Me

Don't settle for ordinary service when you have an extraordinary car like a HUMMER. Schedule an appointment with Apex Transmission and Auto today by calling (937) 772-4009 and unlock the full potential of your HUMMER. We look forward to keeping your adventure on track! Visit us at 707 South Edgewood Avenue, Urbana, OH 43078.

Built for Adventure – Hummer Service at Apex Transmission and Auto.

Understanding the Solenoid Switched Valve in the 68RFE

May 29, 2026
Understanding the Solenoid Switched Valve in the 68RFE Transmission: Common Problems & How Apex Transmission and Auto Fixes Them The 68RFE transmission is a popular choice for many Ram trucks, known for its reliability and smooth shifting. However, like any transmission, it has its weak points — one of the most common being issues related to the solenoid switched valve . At Apex Transmission and Auto , we specialize in diagnosing and resolving these problems using industry-leading solutions like the TransGo valve body kit. What Is the Solenoid Switched Valve? The solenoid switched valve is a critical component inside the 68RFE valve body. It works with the transmission’s solenoids to regulate hydraulic pressure and control the engagement of various clutches and bands. Proper function of this valve ensures smooth and timely gear shifts. Common Problems Caused by the Solenoid Switched Valve When the solenoid switched valve begins to fail or malfunction, you might notice a range of issues, such as: Harsh or delayed shifts: The transmission may hesitate or shift roughly between gears, especially during 2-3 or 3-4 shifts. Transmission slipping: Inconsistent hydraulic pressure can cause the transmission to slip under load. Check Engine Light and transmission error codes: Error codes related to solenoid malfunctions or pressure irregularities often point back to the solenoid switched valve. Transmission overheating: Improper valve function can increase heat generation, risking damage to internal components. How Is the Solenoid Switched Valve Problem Fixed? At Apex Transmission and Auto , we know that simply replacing solenoids or the valve body isn’t always enough. The solenoid switched valve requires precision reconditioning and upgrades to restore reliable function. Our technicians utilize the TransGo valve body kit , a high-quality aftermarket solution specifically designed to improve hydraulic control and shift quality. The TransGo kit includes: Precision-machined components to replace worn or damaged valves Enhanced springs and seals for better pressure management Upgraded valves that reduce common failure points By installing the TransGo kit and performing a full valve body rebuild, we eliminate the root causes of many solenoid switched valve problems, resulting in smoother shifts, improved durability, and extended transmission life. Why Choose Apex Transmission and Auto? Expert transmission repair and rebuild specialists with years of experience working with 68RFE transmissions. Use of premium transmission parts like the TransGo valve body kit for lasting repairs. Comprehensive, in-house transmission diagnostics and rebuild services ensuring quality and reliability. If you’re experiencing transmission issues like harsh shifting, slipping, or error codes, don’t wait until it worsens. Contact Apex Transmission and Auto today to schedule a transmission inspection and learn how our solenoid switched valve upgrades with the TransGo kit can restore your 68RFE transmission to peak performance. Ready to fix your transmission problems and get back on the road with confidence? Contact Apex Transmission and Auto now for expert 68RFE transmission repair, rebuilds, and upgrades. We’re here to help you drive smooth and strong for years to come!

The dreaded 6l80/90 shudder crisis

May 29, 2026
The Shudder Crisis: What’s Going On with the 6L80E & 6L90? If you own a GM vehicle with a 6L80E or 6L90 transmission, chances are you’ve felt it — that irritating, rhythmic vibration while cruising between 30–50 mph. Known in the performance and repair world as “ The Shudder Crisis ,” this issue is more than just a comfort concern — it’s a warning sign. At the root of the problem is torque converter clutch (TCC) shudder. It’s typically caused by degraded transmission fluid or worn TCC components, but factory tuning also plays a major role. GM’s original torque converter schedule keeps the clutch engaged too early and too often, especially under light load — causing premature wear and frequent shudder. The Real Fix: More Than Just Fluid While upgrading to Mobil 1 LV ATF HP fluid can help reduce shudder, it’s often not enough for long-term reliability. That’s where TransGo’s drop-in valve kit and a Coode-modified tune come in. TransGo TCC Regulator & Boost Valves: These upgrade the hydraulic integrity of the transmission, preventing pressure loss and improving converter clutch control. Code-Mod Tune: Custom tuning recalibrates the torque converter schedule to reduce unnecessary clutch application, minimize heat, and eliminate early lockup. Together, this combo solves the issue at its source — not just masking it. The result? A smoother drive, better longevity, and peace of mind. Dealing with shudder? Don’t wait for major damage. Upgrade with precision hardware and proven tuning. Contact us to learn more.

Featured Blogs & News