Is Your GM Truck or SUV Running Rough?
If you’re dealing with a frustrating check engine light, erratic engine behavior, or a vehicle that just won’t start, a failing Powertrain Control Module (PCM) is often the culprit. For the owner of a dependable late-90s Chevy, GMC, or GM vehicle, these issues can sideline the truck or van you rely on every day. This isn’t just an inconvenience; it’s a disruption to your work and life. You need a reliable, straightforward fix that gets you back on the road without the dealership hassle and expense. This is the solution you’ve been looking for.
Common Symptoms & Your Solution
A faulty engine computer can cause a cascade of problems that are often misdiagnosed. If you’re experiencing any of the following, it’s a strong indicator that your PCM needs replacement:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to internal module failure (e.g., P0601, P0605)
- Engine stalling or cutting out unexpectedly
- Rough or inconsistent idling
- Harsh or erratic automatic transmission shifting
- Poor fuel economy
- Complete no-start condition where the engine cranks but won’t fire
This module is the definitive fix for these issues. It is a direct-fit replacement for part number 16263494 and other cross-referenced numbers, and it arrives at your door fully programmed to your vehicle’s specific VIN. That means no extra trips to a mechanic for expensive programming—it’s ready to install right out of the box. Our process uses the latest GM software updates, ensuring your engine operates with optimal parameters and fixes many of the common glitches found in the original software. When you order a programmed 16263494 PCM from us, you’re getting a true, lasting solution.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: This isn’t a generic part. It’s tailored specifically for your truck or van, ensuring perfect compatibility and function right out of the box.
- ✔ Loaded with Latest GM Software: We flash your module with the newest factory updates, resolving common issues and optimizing performance beyond what your old unit could offer.
- ✔ Direct-Fit Replacement: Guaranteed to match the original part numbers 16263494 and 16265035, making for a straightforward installation without modifications.
- ✔ Restored Engine Performance: Eliminate frustrating symptoms like rough idling, poor shifting, and stalling. Get your engine running smoothly and dependably again.
- ✔ Cost-Effective Dealership Alternative: Get a high-quality, perfectly programmed module without the high costs and long wait times associated with the dealership.
Expert Insight: The Importance of Correct Programming
As a technician with over 20 years of experience, I’ve seen countless issues arise from improperly programmed modules on these GM Vortec engines. A generic, un-programmed computer simply won’t work. Your vehicle’s systems—from the fuel injectors to the transmission shift points and anti-theft system—are all tied to the unique VIN data. By flashing this programmed 16263494 PCM with your vehicle’s specific information and the latest GM calibrations, we ensure all those systems communicate correctly. This not only makes installation easier but is critical for the long-term health and reliability of your powertrain.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is specific to your vehicle.
Do I need to do anything after installation?
In most cases, you will need to perform a simple security relearn procedure, also known as a CASE relearn. This can typically be done without special tools and involves a series of key cycles. We can provide instructions for this procedure. It allows the new PCM to synchronize with your vehicle’s anti-theft system.
Is this a brand new part?
This is a high-quality, fully tested, and inspected component that is guaranteed to meet or exceed original equipment performance. Each unit is meticulously prepared and programmed in-house to ensure reliability.
What’s the difference between a PCM and an ECM?
The terms are often used interchangeably. ECM stands for Engine Control Module, while PCM stands for Powertrain Control Module. A PCM typically controls both the engine and the transmission, which is the case for most of the vehicles this part fits. For all practical purposes in this listing, they refer to the same computer.
How can I be sure my old computer is the problem?
While the symptoms listed are strong indicators, it’s always best to have a proper diagnosis performed. Key signs include specific internal module fault codes (like P0601), or if all power and ground signals going to the computer are confirmed to be good, but it still fails to operate.
Will this fix my specific vehicle problem?
If your vehicle’s issues are caused by a faulty computer, this programmed 16263494 PCM is the correct and complete solution. It resolves software glitches, internal hardware failure, and communication errors originating from the module itself.