Restore Your GM Truck’s Performance and Reliability
Is your trusty GM truck, SUV, or van suffering from frustrating issues like a check engine light that won’t go away, erratic shifting, stalling, or even a complete no-start condition? A failing Powertrain Control Module (PCM) is often the hidden culprit behind these perplexing problems. This isn’t just a replacement part; it’s the definitive solution to get your vehicle running strong again. We provide a professionally programmed PCM, flashed with the latest GM software updates specifically for your vehicle’s VIN, making installation straightforward and eliminating the need for an expensive trip to the dealership.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause. This module is the correct fix for issues such as:
- Check Engine Light with communication-related codes (e.g., U-codes)
- Internal module failure codes like P0601 or P0605
- Harsh or unpredictable automatic transmission shifting
- Poor fuel economy and engine performance
- Intermittent stalling or engine hesitation
- Failure to pass emissions testing
By replacing your old unit with this pre-programmed module, you’re not just swapping a partโyou’re restoring the very brain of your vehicle’s powertrain. This is the most reliable way to solve those issues for good.
Features & Benefits
- โ Plug & Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. In most cases, this eliminates the need for any additional programming.
- โ Updated GM Software: We flash the unit with the newest updates from GM, which can improve engine efficiency, transmission performance, and overall drivability.
- โ Guaranteed Compatibility: A direct replacement for part numbers 16250279, 09366810, and 09355699, ensuring a perfect fit and function for your specific model.
- โ Solves Annoying Drivability Issues: Puts an end to common problems caused by a failing computer, restoring the smooth and reliable operation you depend on.
- โ This unit is backed by our one-year replacement warranty. Get back on the road with the confidence that you’re covered.
An Expert’s Take on the “Black Box” PCM
As a technician who’s spent decades working on these GMT400 and S-series platforms, I can tell you that the PCM is the heart of the whole operation. These late-90s Vortec engines are legendary for their durability, but they are entirely dependent on the computer for everything from fuel mixture to spark timing and transmission shift points. When the module fails, it’s like the conductor of an orchestra suddenly forgetting the music. Our Programmed 09366810 PCM isn’t just a part; it’s a fully restored set of instructions, ensuring every component works in perfect harmony again.
Frequently Asked Questions
Do I need to do anything after I install this PCM?
For many vehicles on this list, a security relearn procedure may be required after installation. This is a simple process that typically involves turning the key on and off in a specific sequence and can be done without any special tools. Instructions are readily available online for your specific model, or you can consult a service manual.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it. Please double-check your VIN for accuracy before sending it to us.
Where is the PCM located on my vehicle?
On most of the compatible full-size trucks, SUVs, and vans, the PCM is located in the engine compartment on the driver’s side, often near the battery or firewall. On S-series vehicles like the Blazer or S10, it’s typically on the passenger side fender well. Always disconnect the battery before attempting to remove or install the module.
Is this the right part for my truck?
This module fits a wide range of 1998-1999 GM vehicles. The best way to confirm compatibility is to match the part number on your existing module to one of the numbers listed: 16250279, 09366810, or 09355699. Please review the detailed fitment list on this page to be certain.
What if I have a problem with the module?
Your purchase is protected. This unit is backed by our one-year replacement warranty. If you encounter any issues with the module itself within the warranty period, please contact us for support and replacement instructions.