Restore Your GM Truck or Van’s Performance and Reliability
Is your work van or truck suddenly running rough, refusing to start, or throwing a persistent Check Engine Light? A failing Powertrain Control Module (PCM) can bring your vehicle to a standstill, costing you time and money. This isn’t just an inconvenience; it’s a critical failure that compromises your vehicle’s core operations. Get back on the road with confidence with this professionally programmed PCM, flashed specifically to your vehicle’s VIN with the latest GM factory updates.
Common Symptoms & Your Solution
A faulty PCM is the hidden culprit behind many frustrating issues. If you’re experiencing any of the following, this module is the definitive solution:
- Complete no-start condition or intermittent starting
- Harsh or erratic automatic transmission shifting
- Poor fuel economy and loss of engine power
- Check Engine Light with communication error codes (like P0601, P0605, P0606)
- Engine stalling or misfiring for no apparent reason
- Failure to pass state emissions testing
Don’t waste time and money chasing down phantom sensor issues. This Programmed 1999-2002 Express 3500 PCM is the brain of your vehicle, and providing it with a correctly configured replacement is the most effective way to solve these complex electronic problems and restore its original dependability.
Features & Benefits
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN, ensuring perfect compatibility and communication with all other onboard systems.
- ✔ Plug & Drive Installation: Arrives ready to install. No expensive trip to the dealership for programming is required, saving you hundreds of dollars.
- ✔ Latest GM Software: Your module is loaded with the most recent software updates from General Motors, addressing known bugs and improving performance beyond the original calibration.
- ✔ Restored Factory Performance: Get back the smooth idle, crisp throttle response, and proper shift points your vehicle had when it was new.
- ✔ Built for Durability: Each unit is meticulously inspected and prepared to withstand the harsh conditions of a work vehicle’s engine bay, ensuring long-term reliability.
Expert Insight: The Critical Role of VIN Programming
As a technician with over two decades of experience, I’ve seen countless vehicle owners buy a used computer from a salvage yard, only to find it doesn’t work. That’s because a PCM isn’t just a part; it’s a component that’s electronically married to its original vehicle. Without precise programming to your truck’s unique VIN, the module won’t recognize the engine, transmission, or even the anti-theft system. Our service eliminates that gamble. We perform the same programming a GM dealer would, ensuring the module you receive is a perfect electronic match for your truck or van, guaranteeing a successful repair the first time.
Frequently Asked Questions
How does the programming process work?
It’s simple. After you place your order, you will need to send us your vehicle’s 17-digit VIN (Vehicle Identification Number). Our technicians will use this number to access the latest official GM software for your exact model and options, then flash it directly onto the module before it ships.
Do I need to do anything after installing this Programmed 1999-2002 Express 3500 PCM?
In most cases, you will need to perform a security relearn procedure, often called a VATS or Passlock relearn. This syncs the new PCM with your vehicle’s anti-theft system and keys. It’s a simple procedure that typically takes 30 minutes and does not require special tools. We include instructions to guide you through it.
Is this a guaranteed fit for my vehicle?
Yes. As long as your vehicle is listed in the compatibility chart and you provide us with the correct VIN, we guarantee it will be the correct, programmed part for your application. This module replaces several part numbers, including 16263494 and 16265035.
What if I have questions during installation?
Our team of experienced professionals is here to help. We provide support to ensure your installation and security relearn process go smoothly. Your success is our top priority.
Is there a core charge for my old module?
This listing does not require a core charge. You can keep your old module or dispose of it responsibly without the hassle of shipping it back to us.
