Get Your GM Truck Back on the Road, Fast.
Is your trusty Tahoe, Silverado, or Express van running rough, stalling, or throwing a persistent check engine light? A failing Powertrain Control Module (PCM) is a common cause for these frustrating issues, leaving your reliable workhorse feeling anything but. Don’t let a faulty computer sideline your vehicle. This is the definitive, hassle-free solution to restore its performance and dependability. We provide a high-quality replacement PCM, professionally programmed to your vehicle’s specific VIN with the latest GM software updates. This isn’t just a replacement part; it’s a new lease on life for your engine and transmission.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing PCM is the likely culprit. This module is engineered to solve these exact problems:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606
- Rough or erratic engine idle
- Poor fuel economy
- Harsh or incorrect transmission shifting
- Engine stalling or hesitation during acceleration
- Complete no-start condition
By installing our pre-programmed 1999-2000 Tahoe PCM 16263494, you are directly addressing the root cause of these issues, ensuring a lasting and reliable repair.
Features & Benefits
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN and the latest factory software. This guarantees perfect communication between engine and transmission systems for optimal performance right out of the box.
- ✔ Plug & Drive Installation: This module is shipped ready for a straightforward installation. No expensive trip to the dealership is required for programming, saving you significant time and money.
- ✔ Guaranteed Compatibility: Directly replaces a wide range of OEM part numbers, including 16263494, 16265035, and 8162634940, for a perfect fit across dozens of GM trucks, vans, and SUVs.
- ✔ Restored Drivability: Cures common issues like erratic shifting, poor fuel mileage, and stalling, making your vehicle predictable and dependable once again.
- ✔ Tested for Reliability: Every module undergoes rigorous testing to ensure it meets or exceeds original equipment standards for durability and function.
Expert Insight: The Critical Role of Correct Programming
As a mechanic with over two decades of experience, I’ve seen countless drivability nightmares caused by improperly matched control modules. A generic, unprogrammed unit from a salvage yard is a recipe for disaster. That’s why we take the essential step to flash each 1999-2000 Tahoe PCM 16263494 to your specific VIN. This isn’t just about making the engine start; it’s about ensuring the transmission shifts correctly, the fuel mixture is optimized, and all related systems communicate flawlessly, just as the engineers at GM intended. You’re not just buying a part; you’re buying a guaranteed, correct solution.
Stop guessing and start driving. This is the most efficient and reliable way to get your vehicle running properly. Simply provide your VIN after purchase, and we’ll handle the complex programming. Your 1999-2000 Tahoe PCM 16263494 will arrive ready to install, putting you back in control and back on the road with confidence.
Frequently Asked Questions
Do I need to do any programming after I install it?
No. The module arrives fully programmed to your VIN and ready for installation. For vehicles equipped with a security system like VATS or Passlock, a simple key relearn procedure will be necessary. We include easy-to-follow instructions for this process.
How do I provide my VIN number?
After you complete your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit VIN. You can find this on your vehicle’s dashboard (viewable through the windshield), on the driver’s side door jamb sticker, or on your registration and insurance documents.
How can I be sure this fits my vehicle?
This module is compatible with a wide range of GM vehicles. The best way to confirm is to match the part number from your original module to one of the numbers listed in our description, such as 16263494 or 16265035. You can also consult the detailed fitment list on this page.
What are the most common signs of a bad PCM?
The most common indicators include a constant check engine light, unexplained performance problems (like poor mileage or rough idle), engine stalling, transmission shifting issues, and a complete failure to start. Diagnostic codes related to internal module failure, like P0601, are a definitive sign.
Is a CASE relearn required?
A Crankshaft Variation (CASE) relearn may be required to clear certain trouble codes after installation. This is not always necessary for the vehicle to run properly, but it is recommended. This procedure can be performed by most local repair shops with a capable bi-directional scan tool.