Restore Peak Performance to Your GM Truck or Van
Is your Chevrolet 2500, Express Van, or another compatible GM vehicle suffering from perplexing issues like erratic shifting, poor engine performance, or a no-start condition? The brain of your vehicle’s powertrain, the Powertrain Control Module (PCM), is often the culprit. This vital component manages everything from fuel delivery and ignition timing to transmission control. When it fails, it can create a cascade of problems that are difficult to diagnose. This replacement PCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a straightforward installation.
From the Diagnostic Bay
We had a 2000 Chevy Express van come into the shop that had been to three other places for intermittent stalling and harsh shifting. The owner had already spent a fortune replacing the fuel pump, throttle position sensor, and even had the transmission serviced. We connected our professional scan tool and noticed the data stream from the PCM would intermittently drop out. Instead of chasing more sensors, we focused on the module. A quick swap with this properly programmed PCM fixed every single issue. It’s a classic example of the vehicle’s computer causing symptoms that mimic other component failures.
Is Your Vehicle Showing These Signs of PCM Failure?
- ✔️ Persistent Check Engine Light with communication error codes (U-codes) or random sensor codes.
- ✔️ Rough, unstable, or surging engine idle.
- ✔️ Harsh, delayed, or unpredictable transmission shifting.
- ✔️ Complete no-start or an intermittent starting problem where the engine cranks but won’t fire.
- ✔️ A sudden and unexplained decrease in fuel economy.
- ✔️ Engine stalling while driving or when coming to a stop.
- ✔️ Failure to pass state emissions testing due to module-related faults.
The Smart Solution: A VIN-Programmed Chevy 2500 PCM Replacement
Don’t waste time and money at the dealership. The biggest hurdle in replacing a PCM is the need for expensive, specialized programming. We eliminate that step for you. When you order from us, you provide your vehicle’s 17-digit VIN, and our technicians will flash this module with the latest, most stable software updates directly from GM. This ensures that your new computer is perfectly matched to your vehicle’s factory specifications and options. This process is critical for proper engine, transmission, and anti-theft system function. Your Chevy 2500 PCM Replacement arrives ready for installation, saving you hundreds in programming fees and vehicle downtime.
Installation is generally simple for a DIY mechanic. After physically swapping the module, you will likely need to perform a security relearn procedure. This process syncs the new PCM to your vehicle’s anti-theft system and typically takes about 30 minutes using only your ignition key—no special tools required. This direct-fit module, compatible with part numbers 16263494 and 16265035, is the most reliable and cost-effective way to get your truck or van running right again.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM), sometimes called an ECM, is your vehicle’s main computer. It controls all critical engine and transmission functions to ensure optimal performance, fuel efficiency, and emissions compliance.
Do I need to take this part to a dealer for programming?
No! That is the primary benefit of our service. We use your VIN to program the module with the latest GM software before we ship it to you. It arrives ready to be installed.
How do I provide my VIN after purchase?
After you place your order, simply send us a message with your 17-digit Vehicle Identification Number (VIN). You can find your VIN on the driver’s side dashboard (visible through the windshield), on the door jamb sticker, or on your vehicle’s registration documents.
What is the security relearn procedure?
This is a simple process that syncs the new PCM with your vehicle’s anti-theft system. For most GM vehicles of this era, it involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating the cycle two more times. Detailed instructions are widely available online for your specific model.
How can I be sure this part will fit my vehicle?
This module fits a wide range of GM trucks and vans. Please review the detailed fitment list on this page and match your original part number to one of the compatible numbers, such as 16263494 or 218-11787, to ensure a perfect match.