Is your trusty GM truck or van suddenly unreliable? If you’re dealing with frustrating issues like stalling, poor fuel economy, erratic shifting, or a persistent Check Engine Light, a failing Powertrain Control Module (PCM) is often the culprit. Don’t let a faulty computer sideline your workhorse. This pre-programmed PCM is the definitive, hassle-free solution to get your vehicle back on the road and running strong.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of problems that can be difficult to diagnose. If you’re experiencing any of the following, this module is your answer:
- Engine stalling or cutting out unexpectedly
- Failure to start or intermittent starting issues
- Noticeable drop in fuel mileage
- Harsh or incorrect automatic transmission shifting
- Check Engine Light with codes like P0601, P0605, or P0606
- Communication errors with diagnostic scan tools
This isn’t just a replacement part; it’s a complete solution. We program this module specifically to your vehicle’s VIN using the latest software updates from GM. This ensures that your 1999-2000 Chevrolet 3500 PCM, or the module for your compatible GM vehicle, operates exactly as the factory intended, restoring lost performance and reliability without a costly trip to the dealership.
Features & Benefits
- ✔ VIN-Specific Programming: Arrives ready to install with no additional programming required. This saves you time, money, and the headache of scheduling a dealer visit.
- ✔ Latest GM Software Updates: We flash the module with the most current GM calibrations, which can resolve factory bugs and improve engine and transmission performance.
- ✔ Direct-Fit OEM Replacement: Engineered to be a perfect match for the original, ensuring a smooth, hassle-free installation with all factory connectors.
- ✔ Rigorously Inspected: Each module undergoes a thorough inspection and testing process to guarantee it meets strict quality and performance standards for long-lasting dependability.
- ✔ Broad Compatibility: A reliable replacement for multiple part numbers, including 16263494, 16265035, and 8162634940, across a wide range of GM trucks, vans, and SUVs.
From the Technician’s Bench: Why Programming is Non-Negotiable
As a tech with over 20 years of experience, I’ve seen countless people try to save a few bucks by installing a used, non-programmed PCM from a salvage yard. It almost never ends well. These vehicles have specific security systems (like GM’s Passlock) and transmission settings tied to the VIN. A mismatched module can result in a no-start condition, incorrect shifting, or other serious drivability problems. By purchasing a properly programmed 1999-2000 Chevrolet 3500 PCM from us, you’re not just buying a part; you’re buying certainty. You’re ensuring all the vehicle’s systems communicate correctly, just as they did when it rolled off the assembly line. It’s the ‘do it right the first time’ repair that saves you headaches down the road.
Frequently Asked Questions
Do I need to do anything after installing this PCM?
In most cases, this is a plug-and-drive solution. However, some GM vehicles of this era may require a security relearn procedure, also known as a CASE relearn. This is a simple process that can typically be done without special tools and involves a sequence of key turns. Instructions are widely available online for your specific model.
Where is my VIN located?
Your 17-digit Vehicle Identification Number (VIN) can be found on a metal tag on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
How long does the programming process take?
Once you provide us with your VIN after purchase, we typically program and ship the module within one to two business days. Our goal is to get your vehicle back on the road as quickly as possible.
Is this compatible with my 2000 GMC Savana van?
Yes, this module is compatible with a wide range of GM vehicles, including the GMC Savana. Please check the detailed fitment list on this page to confirm compatibility with your specific year, model, and engine combination. The key is ensuring your original part number is listed as a cross-reference.
What happens if I don’t provide my VIN?
Providing your VIN is essential. We cannot ship the module without it, as the programming process tailors the software to your vehicle’s specific options and security system. An unprogrammed module will not function correctly in your vehicle.