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6L90E Transmission Common Problems
Posted by on 7/25/2024
The 6L90E transmission fills a much needed duty gap between the versatility of the 4L series and the Allison variety. All previous GM transmissions had been based on hydraulic controls with more electrical aspects with each upgrade, but this unit was developed as a electro/hydraulic controlled transmission. This transmission can be used in vehicles weighing up to 8,600 lbs or a gross weight of 14,000 lbs. Monster provides a selection of different performance ratings for the 6L90, including heavy duty and super sport/super duty.
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The 6L90E Transmission: For Heavy-Duty Applications
The 6L90E Transmission is a favorite among car enthusiasts and professionals alike. Known for its robust design and versatility, the 6L90E is commonly found in high-performance vehicles and heavy-duty applications. However, like any mechanical component, it has its share of common problems that users should be aware of.
Common Problems with 6L90E Transmissions
Torque Converter Issues: One of the most common problems with the 6L90E transmission is related to the torque converter. Drivers often report shuddering or vibration during acceleration, which can indicate a failing torque converter.
Solenoid Failure: The 6L90E transmission relies on solenoids to regulate the flow of transmission fluid. When these solenoids fail, it can result in erratic shifting or a complete inability to shift gears.
Overheating: Like many high-performance transmissions, the 6L90E can suffer from overheating issues, especially under heavy load conditions. This can lead to a breakdown of the transmission fluid, resulting in poor lubrication and increased wear and tear on internal components.
Slipping: Another common issue is gear slippage, where the transmission unexpectedly shifts out of gear or fails to engage properly. This can be particularly dangerous and is often a sign of internal damage or wear.
Leaking: Leaks are another frequent problem with the 6L90E transmission. These leaks can occur at the pan gasket, seals, or cooler lines, leading to low fluid levels and subsequent transmission damage.
Why Choose a Monster Transmission 6L90E?
At Monster Transmission, we understand the frustrations that come with transmission problems. That's why we offer our specially designed 6L90E transmissions, built to not only address these common issues but to exceed your performance expectations. Here’s why you should consider our Monster Transmission 6L90E:
3-Year No-Fault Warranty: We stand by the quality of our transmissions with an industry-leading 3-year no-fault warranty. No matter what happens, we've got you covered, giving you peace of mind with your purchase.
Free Transmission Fluid: Every Monster Transmission 6L90E comes with free transmission fluid, ensuring that you have everything you need for a successful installation and optimal performance right out of the box.
Problem-Free Performance: Our expert technicians have identified and corrected all common 6L90E transmission issues in our Monster Transmissions. From reinforced torque converters to upgraded solenoids and enhanced cooling solutions, our transmissions are built to last.
Performance Options: We offer several performance options to meet the unique needs of every customer. Whether you’re looking for a transmission for daily driving, towing, or high-performance racing, we have the perfect solution for you.
Customer Satisfaction: At Monster Transmission, customer satisfaction is our top priority. Our dedicated support team is always ready to assist you with any questions or concerns, ensuring that you get the best possible service and support.
6L90E Transmission Gear Ratios
The 6L90E automatic transmission makes use of 6 forward gears and one reverse gear. Here is the gear ratio of the 6L90E transmission:
First gear — 4.03
Second gear — 2.36
Third gear — 1.53
Fourth gear — 1.15
Fifth gear — 0.85
Sixth gear — 0.67
Reverse — 3.06
6L90E Transmission Identification
You can identify the 6L90E transmission using its unique RPO tag in the vehicle’s glove compartment. Here are some GM transmission RPO codes you should know:
6L90E — MYD
Tag ID Examples:
6YMH, 6YLH, 6YKH, 6YHH, 6YGH, 6YFH, 6YDH, 6YCH, 6YBH, 6YAH
OEM Part # Examples:
24274110, 24274111, 24274112, 24274113, 24274114, 24274115, 24274116, 24274117, 24274118, 24274119
In conclusion, while the 6L90E transmission is a powerful and versatile choice, it does come with its own set of challenges. By choosing a Monster Transmission 6L90E, you’re not only getting a product that addresses these common problems but also one that comes with a host of additional benefits and peace of mind. Experience the difference with Monster Transmission – where quality, performance, and customer satisfaction come together.
Have Questions Or Want To Learn More? Call NOW 800-708-0087