Is your GMC, Chevrolet, or GM vehicle suffering from perplexing issues like a persistent check engine light, erratic shifting, poor fuel economy, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that manages your engine and transmission’s performance. Don’t let a faulty module keep your reliable truck or van off the road. This direct replacement PCM, part number 16263494, is the definitive solution to restore your vehicle’s original performance and reliability.
This isn’t just a generic part off the shelf. We provide a crucial service by programming the module specifically for your vehicle using your VIN. This ensures that it has the latest software updates from GM and communicates perfectly with all other systems in your vehicle, just as the original did. This plug-and-play convenience saves you a costly trip to the dealership for programming, getting you back to work or on the road faster.
Solving Your 1999-2000 GMC 2500 PCM Problems
A failing PCM can manifest in numerous ways, often mimicking other component failures. By replacing your old module, you can resolve a host of frustrating and performance-robbing issues. This module is the key to restoring the precise fuel delivery, ignition timing, and transmission shift points your vehicle was designed with.
Common Symptoms of a Faulty PCM:
- ✔ Persistent Check Engine Light (CEL) illumination
- ✔ Engine stalling or stumbling for no apparent reason
- ✔ Rough or erratic idling
- ✔ Noticeable decrease in fuel efficiency
- ✔ Harsh or delayed automatic transmission shifting
- ✔ Failure to pass emissions testing
- ✔ Complete no-start condition where the engine cranks but won’t fire
- ✔ Communication errors with diagnostic scan tools
This replacement Powertrain Control Module is a direct-fit for a wide range of GM trucks and vans from the late 1990s and early 2000s, including the Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, Suburban, Express, Savana, and more. It is a compatible replacement for multiple service numbers, including 16263494, 16265035, and 8162634940. By providing your VIN upon purchase, you guarantee that you receive a module that is correctly configured for your vehicle’s specific engine, transmission, and emissions equipment, ensuring a seamless installation and immediate performance restoration. Don’t settle for a generic part that requires additional programming; get the correctly prepared solution for your truck or van right out of the box.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls all aspects of engine and transmission operation, including fuel injection, spark timing, emissions systems, and automatic transmission shifting to ensure optimal performance, fuel economy, and low emissions.
Do I need to get this module programmed?
No. This module comes pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). Simply provide us with your VIN after purchase, and we will load the correct GM software and calibrations before shipping it to you.
Where do I find my vehicle’s VIN?
Your VIN is a 17-digit number typically found on a metal plate on the driver’s side dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will I need to perform any other procedures after installation?
In many cases, you may need to perform a simple security relearn procedure, also known as a CASE (Crankshaft Angle Sensor Error) relearn. This can often be done without special tools and involves a series of key cycles. Instructions are readily available online for your specific model, or your mechanic can perform it quickly.
Is this a direct replacement for part number 16265035?
Yes, this module is a fully compatible replacement for several part numbers, including 16263494, 16265035, 8162634940, and others listed in the description. It will function identically to the original part once programmed to your VIN.