Restore Your GM Truck’s Performance and Reliability
Is your 2000 Tahoe, Silverado, or Sierra running rough, shifting erratically, or showing a persistent Check Engine Light? You’re not alone. The Powertrain Control Module (PCM), the electronic brain of your vehicle’s engine and transmission, is a common failure point. When it falters, it can cause a host of frustrating issues, from poor fuel economy to a no-start condition. This replacement PCM, part number 19109040, is the definitive solution to get your truck back to factory-spec operation.
We take the guesswork and hassle out of the repair. Unlike sourcing a part from a salvage yard, which comes with an unknown history and requires expensive dealer programming, this module arrives at your door ready to install. We use your vehicle’s VIN to flash it with the latest, most stable software updates directly from GM. This ensures perfect communication between all your vehicle’s systems, restoring lost power and efficiency. This is the most direct and reliable way to fix complex electronic issues and pass that emissions test.
A Technician’s Notebook: The Ghost in the Machine
I had a 2000 Silverado 2500 in my bay that was driving the owner crazy. It had a random, intermittent stalling issue and harsh 1-2 shifts, but no consistent trouble codes—just a generic P0700 (Transmission Control System Malfunction) that would pop up now and then. We checked the wiring, tested the transmission solenoids, and even replaced the throttle position sensor. Nothing worked. Finally, we monitored the live data stream from the PCM and noticed the voltage reference for the sensors would flicker erratically just before a stall. The PCM was failing internally, but not in a way that set a clear P0601 (Internal Memory Error) code. We installed a VIN-programmed 2000 Tahoe Powertrain Control Module (the same part family), performed the security relearn, and the truck ran perfectly. It’s a classic example of how a failing PCM can create ghost-like symptoms that defy typical diagnostics.
Is Your Truck or SUV Showing These Symptoms?
- ✔ Check Engine Light is on with codes like P0601, P0606, or U0100.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained drops in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Stalling, stumbling, or a rough idle.
- ✔ Failure to pass state emissions testing.
- ✔ Communication errors with your scan tool.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery.
- ✔ Locate the PCM: On most compatible trucks and SUVs (like the Tahoe, Silverado, Sierra), the PCM is located under the hood, on the driver’s side, typically below or next to the battery tray.
- ✔ Disconnect Connectors: Carefully unclip and remove the wiring harness connectors from the old module. These connectors are color-coded, making re-installation simple.
- ✔ Remove Old Module: Unbolt the old PCM from its mounting bracket and remove it from the vehicle.
- ✔ Install New Module: Mount your new, pre-programmed PCM into the bracket and securely re-attach the wiring harness connectors.
- ✔ Reconnect Battery: Re-attach the negative battery terminal.
- ✔ Perform Security Relearn: You will need to perform a security relearn procedure (often called a ‘CASE learn’ or ‘anti-theft relearn’). This simple procedure can be done without special tools and typically involves cycling the key in the ignition. Instructions are readily available online for your specific model.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 19109040, 09354896, and 9354896. It is guaranteed to fit the following GM vehicles:
- Chevrolet Camaro: 1999-2002 (5.7L)
- Chevrolet Corvette: 1999-2000
- Chevrolet Silverado 1500/2500 Pickup: 1999-2000
- Chevrolet Suburban 1500/2500: 2000
- Chevrolet Tahoe: 2000 (Silverado Body Style)
- GMC Sierra 1500/2500 Pickup: 1999-2000
- GMC Yukon: 2000 (Excludes Denali)
- GMC Yukon XL 1500/2500: 2000
- Pontiac Firebird: 1999-2002 (5.7L)
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We will program the module before shipping it to you.
Is this a plug-and-play part?
Almost! Because it comes programmed to your VIN, it eliminates the need for a dealer scan tool. However, you will need to perform a simple, key-on/key-off security relearn procedure after installation for the vehicle to start. This procedure syncs the module with your vehicle’s anti-theft system.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls both engine functions and transmission shift points. A faulty module is a very common cause of harsh shifting, delayed shifts, or being stuck in one gear. This replacement 2000 Tahoe Powertrain Control Module restores proper communication and fixes these issues if the module is the root cause.
Do I need to return my old PCM?
No core charge is required for this part. You can keep or responsibly dispose of your old module.
What if my original part number is 09354896?
This module, part number 19109040, is a fully compatible and updated replacement for part numbers 09354896 and 9354896. It will function identically in all listed applications.