The 2017 Chevrolet Silverado is a hallmark of reliability and performance in the full-size truck segment. With its robust build and powerful engine options, it has earned the trust of drivers across various terrains and tasks. However, even the most reliable trucks can encounter issues, and one critical aspect often prone to problems is its transmission.
The transmission links engine power and wheel motion, making driving possible and influencing overall vehicle performance. The 2017 Silverado is known for transmission-related issues that can disrupt this seamless operation, potentially leading to unexpected disasters.
But fear not. In this blog post, we will examine the 2017 Silverado transmission problems, exploring common issues, potential causes, diagnostic methods, viable solutions, and maintenance tips to follow.
Whether you’re a proud owner of a 2017 Silverado or seeking one for your next purchase, understanding these transmission challenges is essential for maintaining the longevity and reliability of your Silverado’s transmission.
So, let’s get straight into it and understand the 2017 Silverado transmission issues in detail.
Understanding the 2017 Silverado Transmission System
The automatic transmission consists of several components working in perfect sequence to propel your car. With the torque converter, valve body, planetary gear sets, clutch, and band, power seamlessly transfers from the engine to the wheels, enabling smooth acceleration and varying speeds. They bring the vehicle into motion, ensuring a balanced and efficient driving experience.
When you shift gears, power is transmitted through the gears, adjusting the speed and torque to suit driving conditions. Additionally, the transmission allows for reversing and neutral gear settings, enabling the vehicle to stop and start smoothly. This functionality enhances the driving experience by ensuring seamless transitions between forward motion, stopping, and reversing.
Types of Transmission Used in 2017 Chevrolet Silverado
The 2017 Chevy Silverado offers automatic transmission in two configurations: a 6-speed automatic known as 6L80 and an 8-speed automatic known as 8L90. Let’s understand them in detail:
6L80 Transmission
The 6L80 transmission is a six-speed automatic gearbox designed for the Silverado. It provides smooth shifts and reliability. Adaptive shift controls adjust gear changes for optimal performance in various driving conditions. Whether on the highway or towing heavy loads, it offers consistent performance and fuel efficiency, making it a top choice for Silverado owners.
8L90 Transmission
The 2017 Silverado’s 8L90 transmission, available on higher trims, features eight speeds for enhanced performance and efficiency. Its advanced gear ratio spread improves acceleration and towing capabilities, while smooth, precise shifts ensure a comfortable drive on challenging terrain or when towing heavy trailers. Adaptive performance algorithms provide responsive handling across various scenarios, making the 8L90 an ideal choice for power and efficiency.
2017 Silverado Transmission Issues: An Overview
Now that you are acquainted with the 2017 Chevrolet Silverado transmission, how it works, and types of transmissions, let’s focus on the core section: transmission issues.
Torque Converter Failure
Torque converter failure is the most common transmission issue in the 2017 Chevrolet Silverado in 6L80 and 8L90 transmissions. The torque converter plays a crucial role in transferring power from the engine to the transmission, enabling the vehicle to operate smoothly and efficiently. However, this component can malfunction due to overheating or internal damage.
When the torque converter fails, it can lead to noticeable problems, including gear slipping, shuddering, rough acceleration, and unusual noises like whirring or whining. In severe cases, the torque converter failure can cause the transmission to overheat, potentially leading to further damage and even transmission failure if left unattended.
Do you still have some questions? Our detailed article covers torque converter shudder. Head there to learn more about this transmission component.
Transmission Overheating
Transmission overheating is another common problem in the 2017 Chevrolet Silverado, affecting 6L80 and 8L90 transmissions. This issue can arise from a malfunctioning or clogged transmission cooler, excessive towing or hauling, or inadequate cooling.
When transmission overheats, it often indicates unusual noises, vibrations, and a warning light on the dashboard. If left unaddressed, it can lead to premature wear on transmission components, potentially resulting in costly repairs or even the need for a transmission replacement.
Chevy released a Technical Service Bulletin (TSB) to address this issue so drivers can get help.
Reverse Drum Failure
Reverse drum failure is another issue to look at, particularly in the 6L80 transmission. The reverse drum is a cylindrical component that engages the gears necessary for the vehicle to move backward when the driver shifts into reverse.
When the reverse drum fails, the vehicle may lose the ability to engage the reverse gear. This can result in difficulty or inability to park or maneuver the vehicle in reverse. Reverse drum failure often originates from stress-induced cracks in the friction-welded seams. These cracks compromise the assembly’s integrity, leading to a loss of reverse gear engagement.
Clutch Material Failure
Clutch material failure is another prevalent issue in the transmission system of the 2017 Silverado, specific to the 6L80 transmission type. The clutch, made of friction material, is responsible for engaging and disengaging gears. It can deteriorate over time due to extensive use, inadequate maintenance, or defects in manufacturing.
As the clutch material wears out, it can disintegrate and mix with the transmission fluid, leading to accelerated wear on other components, increased noise and vibration, and potentially catastrophic transmission failure.
Pump Assembly Failure
The ATF pump assembly failure, mostly reported on the 6L80 transmission, can make driving stressful if not addressed early. The ATF pump is responsible for pressurizing and circulating Automatic Transmission Fluid (ATF) throughout the system, enabling gear shifts, and lubricating moving parts.
If the ATF pump assembly fails, it can lead to a loss of hydraulic pressure, causing problems such as slipping gears, harsh shifting, or even complete transmission failure. Pump failures can occur due to internal damage, mainly as a consequence of the failure of the torque converter.
Transmission Fluid Leaks
ATF is vital for the smooth operation of the transmission system. It lubricates moving parts, cools the transmission, facilitates smooth gear shifts, and helps minimize friction and wear within the transmission.
Particular to the 6L80 transmission configuration, the ATF leak can lead to difficulty shifting gears, transmission slipping, and unusual noises. Drivers may notice ATF puddles under the vehicle, a burning smell, hesitation, and rough shifting during acceleration. Transmission system leaks can arise from worn seals and gaskets or compromised ATF lines.
Can I drive my Silverado with transmission issues?
No, it’s not advisable to drive a Silverado with transmission issues. It can lead to discomfort and pose a danger to the vehicle. If you notice symptoms like difficulty shifting or unusual noises, it’s crucial to inspect it promptly to prevent further damage or safety hazards.
Causes of the 2017 Silverado Transmission Issues
Now that you are familiar with the transmission issues on the 2017 Chevrolet Silverado, it’s important to know the possible reasons behind them. Understanding these potential causes is essential for diagnosing and addressing problems effectively. These are some common causes leading to transmission problems in the 2017 Chevrolet Silverado.
Manufacturing Defect
One of the leading causes of transmission issues in the 2017 Silverado is attributed to manufacturing defects, notably the use of inferior materials and manufacturing techniques.
In the case of the torque converter, low-quality steel fails to withstand heat exposure during manufacturing, leading to uneven hardening of the crucial areas, notably the torque converter base. Consequently, the torque converter base becomes susceptible to surface flexing, resulting in gradual and irregular wear over time.
Poor Cooling
This system includes a transmission cooler linked indirectly to the radiator. The system utilizes engine coolant to heat the Automatic Transmission Fluid (ATF) and help it achieve normal operating temperature faster. As the ATF reaches normal operating temperature, it is then cooled by an external air-cooled ATF radiator.
Suppose the transmission cooling system is not working properly due to a malfunction or blockage on the transmission cooling system. In that case, the transmission fluid may not be able to dissipate heat effectively, leading to overheating and reduced performance.
Chevy released a Technical Service Bulletin (TSB) for the 6L80 transmission, suggesting replacing the Transmission Cooler Bypass Valve (TBV) to solve this issue and ensure proper transmission cooling.
Worn or Damaged Components
Worn or damaged transmission components, such as the Automatic Transmission Fluid (ATF) pump mechanism and gear set failures, can significantly contribute to transmission problems. The ATF pump ensures proper fluid circulation for lubrication and cooling, while gear sets facilitate power transfer between gears.
Wear or damage to these components can lead to inefficient fluid circulation, overheating, and loss of power, resulting in symptoms like slipping gears, rough shifting, or complete transmission failure.
Excessive Towing and Payloads
Excessive towing or hauling can also lead to transmission issues in the 2017 Chevrolet Silverado. The 2017 Silverado 1500 has a payload capacity of up to 2,250 lbs, depending on the specific model and configuration. On the other hand, it can tow from 7,000 lbs to 12,500 lbs with the Max Trailering Package, depending on the trim levels and configurations.
When the vehicle is used to tow or haul loads exceeding this recommended capacity, it can stress the transmission system excessively. This excessive strain can lead to problems such as overheating, clutch material failure, and increased wear and tear.
Inadequate maintenance
Inadequate maintenance can also cause transmission issues in the 2017 Silverado. The recommended service interval for ATF and filter replacement is every 45,000 miles in case of severe conditions. And yes, severe condition refers to towing and hauling.
Regular maintenance is crucial for preserving transmission health, ensuring optimal performance, and preventing premature wear or failure. Neglecting maintenance can lead to fluid degradation, overheating, and component wear, resulting in costly repairs or replacements.
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Diagnosing Transmission Issues
Diagnosing transmission issues requires several steps to pinpoint the exact cause. Here are the steps that you can take to narrow down the potential causes of transmission problems in your 2017 Silverado.
Test Drive Under Various Conditions
Take your Silverado for a drive under different conditions, including city streets, highways, and inclines. Pay close attention to how the transmission responds during cold start, under load, acceleration, and cruising. Note any unusual noises, vibrations, or performance issues that may indicate transmission problems.
Observe Shift Quality
Pay attention to your Chevy Silverado’s shifting behavior while driving. Note any delays, slipping, or clunky shifting during acceleration or deceleration. These symptoms can provide a clue about potential issues with the clutch packs, the valve body, or the hydraulic pressure within the transmission.
Check for Transmission Warning Lights
Modern vehicles come equipped with onboard diagnostic systems that monitor various vehicle systems, including the transmission. If the transmission warning message or check engine light appears on your dashboard, use a diagnostic scanner to retrieve any stored trouble codes. These codes can help pinpoint specific issues affecting transmission performance.
Check Transmission Fluid Level and Condition
Using a dipstick, if you have one, inspect the transmission fluid level and condition. A low ATF level or burnt, smelly ATF can indicate leaks or other issues affecting transmission performance.
Check the fluid level and inspect its color and odor for signs of contamination or degradation. However, it is to be noted that the transmission fluid level procedure can vary depending on the transmission installed
Perform a Visual Inspection
Check the transmission and related components for signs of damage, wear, or leaks. Check for damaged transmission housing, wiring harnesses, leaky hoses, worn seals, and contaminants in the Automatic Transmission Fluid (ATF) or around the pan.
Inspect for ATF leaks from the pan, seals, gaskets, and cooler lines, indicating potential transmission issues.
Solutions and Fixes
After becoming familiar with the major transmission issues on the 2017 Chevrolet Silverado, their causes, and diagnostic steps, the next step is to find solutions. Here are some common solutions and fixes for the 2017 Silverado transmission issues.
Use High-Quality Torque Converter
Many problems stem from torque converter issues, so upgrading to a reliable part can help mitigate these issues. Consider using a high-quality torque converter.
You can opt for genuine Chevrolet or reputed OEM and aftermarket brands. A quality torque converter ensures smoother operation, better power transmission, and enhanced overall performance, reducing the likelihood of future transmission problems.
Transmission Flush and Filter Replacement
As a necessary service, perform a transmission flush and replace the transmission filter. A thorough flush can remove accumulated debris and contaminants from the transmission system, while a new filter helps ensure proper transmission fluid filtration and circulation.
Usually, the recommended interval for ATF and filter replacement is every 45,000 miles. This applies to those who use their Chevy Silverado for towing and hauling. But we advise you to do it even if it is not a work truck. This ensures that your Truck always has a fresh ATF in its pan.
Address Fluid Leaks
Identify and repair any transmission fluid leaks promptly. Low ATF levels can compromise transmission performance.
Similarly, worn seals and gaskets should be replaced to prevent ATF leakage, ensuring proper fluid levels and optimal transmission function. This proactive approach helps maintain the integrity of the transmission system and prevents potential damage from fluid loss.
Valve Body Repairs
If the valve body is faulty, consider repairing or replacing it to maintain the transmission’s integrity. This involves replacing the solenoid, cleaning the valve body, replacing seals and gaskets, or replacing the whole assembly.
Solenoids control ATF flow within the transmission while cleaning the valve body to ensure smooth operation. Replacing worn seals and gaskets prevents leaks and restores transmission performance and reliability.
Reset and Relearn the Adaptation Values
To address transmission issues, reset and relearn adaptation values. This involves relearning the transmission’s adaptive parameters to optimize performance. A Technical Service Bulletin (TSB) regarding this procedure indicates its importance in effectively resolving transmission-related issues and restoring optimal functionality.
Transmission Rebuild or Replacement
Rarely, if none of the above solutions fix the transmission issues, a transmission rebuild is performed, usually applicable to severe transmission damage or component failure.
Rebuilding the transmission involves disassembling, inspecting, and replacing worn or damaged components to restore functionality. Alternatively, replace the entire transmission assembly with a new or remanufactured unit, especially for irreparable damage.
How much does it cost to replace a 2017 Chevy Silverado transmission?
The cost of replacing a transmission in a 2017 Chevy Silverado can vary depending on several factors, such as the specific model of the Silverado, whether you’re opting for a brand new or a rebuilt transmission, and labor costs, which can vary by location and dealership you choose.
On average, the cost of a transmission replacement for a 2017 Chevy Silverado could range anywhere from $2,000 to $5,000 or more, including parts and labor. Extensive research is always a good idea to ensure a fair price for the work needed. Additionally, if your vehicle is still under warranty, check if the transmission replacement is covered.
Preventive Maintenance Tips
Preventive maintenance plays a crucial role in preserving the integrity and performance of the transmission system. By following these preventive maintenance tips, you can minimize the risk of transmission problems in your vehicle.
Adhere to Fluid Change Intervals
Follow the recommended transmission fluid change intervals specified in your Silverado’s owner’s manual. Consider performing an ATF and filter change every 45,000 miles to avoid transmission issues.
Transmission Cooler Maintenance
Ensure the transmission cooler remains clean and free from obstructions. Periodically inspect the cooler fins for debris or blockages that impede airflow and cooling efficiency. If the TSB still needs to be done, it may be a good idea to perform it now. Cleaning the cooler periodically helps prevent transmission overheating, especially during towing or heavy-duty use.
Monitor Driving Habits
Practice smooth and mindful driving habits to reduce stress on the transmission system. Avoid abrupt acceleration, aggressive shifting, and excessive towing or hauling whenever possible. Gradual acceleration, gentle braking, and maintaining steady speeds help minimize wear and tear on transmission components.
Address Warning Signs Promptly
Pay close attention to any warning signs or symptoms of transmission problems, such as unusual noises, vibrations, or erratic shifting. If you notice any issues, inspect your Silverado to diagnose and address the problem before it worsens.
Is there a warranty for transmission issues in a 2017 Silverado?
The warranty coverage for transmission issues can vary based on factors like mileage and whether your vehicle is under the manufacturer’s or extended warranty. Generally, the 2017 Chevrolet Silverado is backed by a 5-year/60,000-mile powertrain warranty, which typically includes transmission coverage. Refer to your warranty documents for precise details on coverage.
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