Is Your GM Truck or Van Running Rough?
If you’re dealing with a persistent check engine light, poor fuel mileage, a rough idle, or even a no-start condition, a failing Powertrain Control Module is often the culprit. Your vehicle’s PCM is its brain, and when it starts to fail, it can cause a host of frustrating and difficult-to-diagnose problems. Stop chasing symptoms and replace the core component with this reliable, VIN-programmed 16263494 PCM, designed to get your workhorse back on the road and running strong.
Common Symptoms & Your Solution
A faulty engine computer can manifest in numerous ways. You might be experiencing one or more of the following issues:
- Check Engine Light (CEL) with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606.
- Poor or Erratic Engine Performance: Stalling, hesitation, misfires, or a general lack of power.
- Reduced Fuel Economy: The engine isn’t receiving the correct data to run efficiently.
- Harsh or Incorrect Shifting: The PCM also controls transmission functions in many vehicles.
- No-Start Condition: The module may fail to power up the fuel pump or ignition system.
This pre-programmed module is the definitive solution. We take a quality, tested hardware unit and flash it with the latest official GM software calibrated specifically to your vehicle’s VIN. This ensures all factory parameters are restored for optimal performance and reliability.
Features & Real-World Benefits
- ✔ VIN-Specific Programming: We program the module to your exact vehicle before shipping. This isn’t a generic unit; it’s prepared for your truck or van, ensuring a seamless installation process.
- ✔ Updated GM Software: Your module arrives with the newest calibrations from General Motors, often improving on the original software for better efficiency and drivability.
- ✔ Plug-and-Play Installation: Because it’s programmed for your vehicle, installation is straightforward. In most cases, you will only need to perform a security or CASE relearn procedure after installation, which can be done with a capable scan tool.
- ✔ Restored Factory Performance: Eliminate the guesswork and restore the smooth operation, power, and fuel efficiency you depend on. This 16263494 PCM is the foundation of a reliable powertrain.
- ✔ Broad Compatibility: This module directly replaces multiple part numbers, including 16265035 and 8162634940, making it the correct part for dozens of GM models.
Expert Insight from a 20-Year Tech
Before you replace your PCM, do a ‘voltage drop test’ on your main power and ground circuits. I’ve seen countless modules get condemned when the real issue was a corroded ground wire or a loose battery terminal. On these GM trucks and vans, the ground on the engine block near the thermostat housing is a common weak point. A clean, tight connection is critical for the health of any electronic module. A few minutes with a multimeter can save you a lot of headaches and confirm your 16263494 PCM is truly the component that needs replacement.
Frequently Asked Questions
Do I need to send you my old computer?
No, there is no core charge or need to send in your original module. This is an outright purchase, saving you time and return shipping costs.
What information do you need from me?
After you place your order, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific make, model, and options.
Is this module difficult to install?
Physically, the installation is straightforward, typically involving disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. However, after installation, you will need to perform a security relearn and potentially a Crankshaft Variation (CASE) relearn for the vehicle to start and run properly. This requires a bi-directional scan tool.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original PCM (common DTCs are P0601-P0606), then this replacement module will solve the problem. However, it will not fix issues caused by other faulty sensors or components on the vehicle.
What is the warranty on this part?
This module comes with a standard warranty covering defects in the hardware and programming. Please refer to our store’s warranty policy page for complete details and duration.