Restore Peak Performance to Your 1997 GM Truck or Van
Is your dependable 1997 GMC Yukon, Chevy Silverado, or Express Van suddenly letting you down? If you’re dealing with frustrating issues like a no-start condition, erratic shifting, stalling, or a persistent check engine light that just won’t go away, a failing Powertrain Control Module (PCM) is the most likely culprit. This isn’t just an inconvenience; it’s a roadblock that keeps your workhorse off the road. This replacement 1997 GMC Yukon PCM 16229684 is the definitive, hassle-free solution to get your vehicle running reliably again.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of confusing problems. You might be chasing phantom sensor codes or dealing with an engine that runs rough for no apparent reason. This module is the core of your vehicle’s operational logic, and when it fails, the symptoms can be unpredictable. This unit is designed to correct issues such as:
- Engine stalling or cutting out while driving
- Harsh or unpredictable automatic transmission shifting
- Complete no-start condition where the engine cranks but won’t fire
- Poor fuel economy and loss of power
- Check Engine Light (CEL) with communication-related DTCs (Diagnostic Trouble Codes)
By replacing your old module with this pre-programmed unit, you are installing a fresh, reliable brain into your truck, solving the root cause of these electrical gremlins.
Features & Benefits
- ✔ Programmed to Your Exact VIN: We flash this module with the latest GM software updates using your vehicle’s specific VIN. This ensures perfect compatibility and function right out of the box, eliminating the need for an expensive trip to a dealership for programming.
- ✔ True Plug-and-Play Installation: Once you receive the module, the installation process is straightforward. Simply disconnect the battery, swap the modules, and reconnect. No special tools or programming are required on your end.
- ✔ Guaranteed Direct-Fit Replacement: This unit is a direct replacement for OEM part numbers 16229684 and 8162296840, ensuring a perfect physical fit in the original location for a wide range of 1997 GM trucks, vans, and SUVs.
- ✔ Restores Original Drivability: Get back the smooth idle, crisp throttle response, and reliable shifting you depend on. This is the key to restoring your vehicle’s performance and your confidence in it.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight from a 20-Year Technician
Before you install your new 1997 GMC Yukon PCM 16229684, take 15 minutes to do one crucial check: your grounds. On these GMT400-platform trucks, a corroded or loose ground strap—especially the one from the engine block to the firewall or frame—can cause bizarre electrical issues that mimic a bad PCM. Clean the contact points with a wire brush until they are shiny and secure them tightly. This simple step ensures your new module has a clean electrical environment to operate in and protects it for years to come.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is the central computer of your vehicle. It controls all aspects of the engine and transmission, such as fuel injection, ignition timing, and transmission shift points, to ensure optimal performance, fuel efficiency, and emissions.
Is any additional programming required after I install it?
No. This is the biggest benefit of our service. We program the PCM to the VIN you provide before we ship it. This makes the installation a simple plug-and-play process, saving you time and the high cost of dealer programming.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot ship your part until we receive the VIN, as the programming is specific to your vehicle.
What are the most common signs of a bad PCM in my 1997 GM truck?
The most common symptoms include the engine not starting, stalling unexpectedly, rough running, poor fuel mileage, and failure to communicate with a diagnostic scan tool. You may also experience harsh shifting or a check engine light for seemingly random sensor failures.
Does this part fit vehicles other than the GMC Yukon?
Yes. This 1997 GMC Yukon PCM 16229684 is compatible with a wide array of 1997 GM models, including the Chevy C/K 1500/2500/3500 pickups, Suburban, Tahoe, Express/Savana vans, and S-10/Blazer series with the 4.3L V6 engine. Please check the full fitment list on this page to confirm for your specific vehicle.