
Is your 2017 Silverado acting up, especially when it comes to shifting gears? That sinking feeling when your truck isn't performing like it should can be incredibly frustrating. Transmission problems can range from minor annoyances to serious issues that sideline your trusty Silverado. Don't panic! This guide will walk you through common 2017 Silverado transmission problems, what might be causing them, and, most importantly, how to fix them (or know when to seek professional help). Let's get your Silverado back on the road, running smoothly.
Understanding Common 2017 Silverado Transmission Problems
The 2017 Silverado, equipped with either the 6-speed or 8-speed automatic transmission (depending on the engine and trim), has seen its share of transmission-related issues. Identifying the symptoms is the first step in diagnosing the problem. These problems are commonly related to the2017 Silverado transmission issues. Here are some of the most frequently reported problems:
- Rough or Harsh Shifting: This feels like a noticeable jolt or hesitation when the transmission shifts between gears. It might be more pronounced at certain speeds or during acceleration.
- Slipping Gears: The engine revs higher than normal without a corresponding increase in speed. It feels like the transmission isn't fully engaging the next gear.
- Delayed Engagement: When you shift from Park to Drive or Reverse, there's a noticeable delay before the transmission engages.
- Shuddering or Vibrating: A shaking sensation, often felt at highway speeds, can indicate internal transmission problems. Some drivers have described it as a "rumble strip" feeling.
- Unusual Noises: Whining, clunking, or buzzing sounds coming from the transmission area are red flags.
- Check Engine Light: While not always specifically transmission-related, a lit Check Engine Light can indicate a transmission fault code.
Fact: Many 2017 Silverado owners experiencing these issues have reported them occurring more frequently between 20,000 and 80,000 miles. This doesn't mean every Silverado will experience problems within this range, but it's a period to be particularly attentive to any changes in transmission performance.
Possible Causes of These Transmission Issues
Several factors can contribute to the transmission problems observed in the 2017 Silverado. Understanding these causes is crucial in determining the appropriate fix. These problems are commonly related to the2017 Silverado transmission issues:
- Low or Contaminated Transmission Fluid: Fluid acts as a lubricant and coolant for the transmission's internal components. Low fluid levels or contaminated fluid (due to wear and tear, overheating, or debris) can lead to friction, overheating, and ultimately, transmission damage.
- Valve Body Problems: The valve body controls the flow of transmission fluid to various parts of the transmission. Malfunctioning valves can cause shifting problems.
- Torque Converter Issues: The torque converter connects the engine to the transmission. Problems with the torque converter, such as a failing stator, can lead to slipping or shuddering.
- Internal Mechanical Wear: Over time, the internal components of the transmission, such as clutches, bands, and gears, can wear down. This wear and tear can cause slipping, harsh shifting, and other problems.
- Software Glitches: In some cases, software glitches in the transmission control module (TCM) can cause shifting irregularities.
Case Study: A common complaint with the 8-speed transmission in the 2017 Silverado (and other GM vehicles) was a shuddering or vibration, especially at lower speeds. This was often attributed to a combination of factors, including the transmission fluid itself, torque converter issues, and software calibrations. In many instances, a transmission fluid flush using an updated fluid formula, coupled with a TCM recalibration, resolved the issue.
How to Diagnose 2017 Silverado Transmission Problems
Before diving into any fixes, it's essential to accurately diagnose the problem. A systematic approach can save you time and money. Here’s how you can approach thediagnosis of 2017 Silverado transmission issues:
- Check the Transmission Fluid Level and Condition: Locate the transmission fluid dipstick (consult your owner's manual for its location). Pull it out, wipe it clean, reinsert it fully, and then pull it out again to check the fluid level. The fluid should be within the "hot" or "cold" range, depending on whether the engine is warm. Also, inspect the fluid's color and smell. Healthy transmission fluid is typically reddish or pinkish and has a slightly sweet odor. Dark brown or black fluid with a burnt smell indicates contamination or overheating.
- Listen for Unusual Noises: Pay close attention to any unusual sounds coming from the transmission area while driving. Note when the noises occur (e.g., during acceleration, deceleration, or shifting).
- Note Specific Symptoms: Keep a detailed record of the specific symptoms you're experiencing. When does the problem occur? What does it feel like? The more information you can provide to a mechanic, the better.
- Scan for Diagnostic Trouble Codes (DTCs): Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) stored in the vehicle's computer. These codes can provide valuable clues about the nature of the problem. Even if the Check Engine Light isn't on, there might still be stored codes. Common codes related to transmission problems in the 2017 Silverado include P0700 (Transmission Control System Malfunction) and codes related to specific gear ratios or solenoid performance.
- Consult a Qualified Mechanic: If you're not comfortable performing these steps yourself, or if you've identified a problem that seems complex, it's always best to consult a qualified mechanic. They have the expertise and specialized equipment to accurately diagnose and repair transmission problems.
How to Fix 2017 Silverado Transmission Problems: DIY vs. Professional Help
Now that you have a better understanding of the potential problems, let's explore how to fix them. Determining whether you can tackle the repairs yourself or if you need professional help depends on your mechanical skills, the complexity of the problem, and the tools available. This is the central problem when consideringhow to fix 2017 Silverado transmission problems.
DIY Fixes (When Appropriate)
Certain simpler issues can often be addressed with DIY repairs. Remember to always prioritize safety and consult your vehicle's service manual before attempting any repairs.
- Transmission Fluid Change: If the fluid is low or contaminated, a transmission fluid change can often improve shifting performance. Be sure to use the correct type of transmission fluid specified in your owner's manual. The 2017 Silverado with the 8-speed transmission typically requires a specific fluid (often Dexron HP). A simple fluid drain and fill can be performed at home with the proper tools, while a complete flush may require specialized equipment.
- TCM Reset: Sometimes, a simple reset of the transmission control module (TCM) can resolve minor software glitches. This can often be done by disconnecting the vehicle's battery for a short period (usually 15-30 minutes). Consult your owner's manual or a reliable online resource for the proper procedure. Important: Disconnecting the battery will also reset other electronic systems, so be prepared to reprogram radio presets and other settings.
Warning: Never attempt internal transmission repairs unless you have significant mechanical experience and specialized tools. Improper repairs can cause further damage and potentially lead to complete transmission failure. Always exercise caution when working with automotive fluids, as they can be harmful if ingested or come into contact with skin.
When to Seek Professional Help
For more complex problems, it's best to seek the expertise of a qualified mechanic. Here are some situations where professional help is highly recommended when you're consideringhow to fix 2017 Silverado transmission problems:
- Significant Slipping or Harsh Shifting: If the transmission is slipping severely or shifting very harshly, it likely indicates internal damage that requires professional repair or replacement.
- Unusual Noises: Persistent or loud noises coming from the transmission should be investigated by a mechanic.
- Check Engine Light with Transmission Codes: If the Check Engine Light is on and the scanner reveals transmission-related codes, it's a sign that the problem is more serious and requires professional diagnosis and repair.
- Suspected Valve Body or Torque Converter Issues: Repairs involving the valve body or torque converter typically require specialized tools and expertise.
- Transmission Rebuild or Replacement: If the transmission is severely damaged, a rebuild or replacement may be necessary. This is a complex and expensive undertaking that should only be performed by experienced professionals.
When choosing a mechanic, look for a shop that specializes in transmission repair and has experience working on GM vehicles. Ask for a detailed estimate before any work is performed, and be sure to understand the scope of the repairs. Don't be afraid to get a second opinion if you're unsure about the diagnosis or recommended repairs.
Preventative Maintenance for Your 2017 Silverado Transmission
The best way to avoid costly transmission repairs is to practice preventative maintenance. Regular maintenance can significantly extend the life of your transmission and prevent many of the problems mentioned earlier. Following these tips helps in the long-term care toavoid future 2017 Silverado transmission issues:
- Regular Transmission Fluid Changes: Follow the recommended maintenance schedule in your owner's manual for transmission fluid changes. This is arguably the most important thing you can do to keep your transmission healthy.
- Avoid Aggressive Driving: Harsh acceleration, frequent towing, and other forms of aggressive driving can put extra strain on the transmission.
- Proper Towing Practices: If you regularly tow with your Silverado, be sure to follow the recommended towing guidelines and use the appropriate towing mode. Overloading the vehicle or towing improperly can significantly increase the risk of transmission problems.
- Address Problems Promptly: Don't ignore any warning signs of transmission problems. Addressing issues early can often prevent them from escalating into more serious and expensive repairs.
By staying proactive with maintenance and addressing any problems promptly, you can keep your 2017 Silverado's transmission running smoothly for years to come. Remember, a little preventative care can go a long way in avoiding costly repairs down the road.