Is Your 1999-2000 Silverado 1500 Acting Unpredictably?
If you’re dealing with baffling electrical gremlins, poor performance, or a truck that simply refuses to start, the issue often points directly to a failing Powertrain Control Module (PCM). As the central computer, the PCM is the brain behind your engine and transmission. When it starts to fail, it can feel like your entire truck is falling apart. I’ve seen these exact trucks in my bay for over two decades, and the symptoms are almost always the same.
Common Symptoms of a Failing GM PCM
A faulty PCM on this generation of GM trucks can manifest in numerous ways. If you’re experiencing any of the following, there’s a strong chance your PCM is the culprit:
- ✔ No-start or intermittent starting conditions, even with a good battery and starter.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Unexplained Check Engine Light (CEL) that won’t clear or points to multiple, unrelated sensor failures.
- ✔ Loss of communication with scan tools, making diagnostics impossible.
- ✔ Poor fuel economy and a noticeable drop in engine power.
- ✔ Stalling at idle or while driving.
Expert Pro Tip: Check for Battery Acid Corrosion
In my shop, the number one killer of these PCMs on Silverado, Sierra, and Tahoe models is their location. They sit on a tray directly under the battery. Over time, batteries can leak acid, which drips down and corrodes the PCM case, the wiring harness connectors, and eventually the internal circuit board. Before installing your replacement PCM, it’s absolutely critical to clean the battery tray and inspect the harness connectors for any green or white corrosion. Cleaning this area thoroughly prevents the same fate from befalling your new module.
The Direct-Fit, Programmed Solution
Forget the hassle and expense of towing your truck to a dealership. This Powertrain Control Module is the reliable, straightforward solution to get your Silverado 1500 back on the road. We take the guesswork out of the repair by pre-programming the module specifically for your vehicle using your VIN. This ensures all factory settings and the latest GM software updates are loaded before it even ships.
- ✔ VIN Programmed: Arrives ready for installation with the latest GM software for your specific truck.
- ✔ No Dealer Visit Required: This module is plug-and-play. In most cases, a security relearn procedure is all that’s needed, which you can do yourself right in your driveway.
- ✔ Restores Performance: Corrects engine and transmission issues caused by a faulty original computer.
- ✔ Guaranteed Compatibility: This module is a direct replacement for part numbers 09354896, 9354896, and 19109040.
Simple Ordering Process
After you complete your purchase, simply provide us with your vehicle’s 17-digit VIN. Our technicians will handle the programming, ensuring a perfect match for your truck’s specific configuration. We’ll then ship the ready-to-install PCM directly to you.
Verified Vehicle Fitment
This electronic control module is a confirmed fit for the following vehicles and options. Please verify your vehicle is on this list before ordering.
- ✔ Chevrolet Silverado 1500 (8-Cylinder): 1999, 2000
- ✔ GMC Sierra 1500 (8-Cylinder): 1999, 2000
- ✔ Chevrolet Silverado 2500: 1999, 2000
- ✔ GMC Sierra 2500: 1999, 2000
- ✔ Chevrolet Tahoe (Silverado Style): 2000
- ✔ Chevrolet Suburban 1500 & 2500: 2000
- ✔ GMC Yukon (exc. Denali): 2000
- ✔ GMC Yukon XL 1500 & 2500: 2000
- ✔ Chevrolet Camaro (5.7L): 1999, 2000, 2001-2002 (with ID 9354896)
- ✔ Pontiac Firebird (5.7L): 1999, 2000, 2001-2002 (with ID 9354896)
- ✔ Chevrolet Corvette: 1999, 2000