Is Your Suburban Running Rough, Stalling, or Refusing to Start?
If you’re dealing with a frustrating check engine light, poor fuel economy, erratic shifting, or a no-start condition in your 1998-1999 Suburban 1500, a failing Powertrain Control Module (PCM) is often the culprit. Over two decades of experience in the shop has shown me that heat, vibration, and age can cause the internal circuits of these computers to fail, leading to problems that can be a nightmare to diagnose. This isn’t just a part; it’s the solution to getting your reliable GM truck back on the road.
This is a thoroughly tested, used OEM Engine Computer that is professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load the latest GM-certified software, ensuring your engine and transmission operate exactly as the manufacturer intended. This process corrects factory bugs and optimizes performance, giving you a reliable and cost-effective alternative to a new dealership part.
Why Choose Our 1998-1999 Suburban 1500 PCM?
You’re getting a direct-fit component that solves common and frustrating vehicle issues. We take the guesswork out of the repair by handling the complex programming for you. Simply provide your VIN after purchase, and we’ll ship a module that’s ready for installation right out of the box.
- ✔ VIN Programmed & Ready to Install: No expensive trips to the dealer or locksmith are required. This module arrives flashed with your vehicle’s data and the latest GM updates.
- ✔ Fixes Common Issues: A direct solution for symptoms like harsh shifting, random stalling, persistent check engine lights (CEL), and communication errors with scan tools.
- ✔ OEM Reliability: This is a genuine OEM part sourced from a salvaged vehicle, ensuring perfect compatibility and function with your truck’s systems.
- ✔ Cost-Effective Repair: Save hundreds of dollars compared to sourcing and programming a new module from a dealership.
Expert Pro Tip: Check Your Grounds Before Installation
In my 20+ years as a technician, I’ve seen countless PCMs replaced when the real issue was a simple, corroded ground wire. Before you install your replacement 1998-1999 Suburban 1500 PCM, take 10 minutes to locate and clean the main engine-to-chassis and battery-to-chassis ground straps. They are typically braided metal straps. A poor ground can cause erratic voltage, mimicking the exact symptoms of a failed computer. A quick cleaning with a wire brush can save you from a misdiagnosis and ensure your new part functions perfectly from the start.
Plug-and-Play Installation: No Dealer Visit Required
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow the system to fully discharge.
- Locate the PCM: On most 1998-1999 Suburbans, the PCM is located in the engine compartment on the driver’s side, near the fender or firewall.
- Disconnect the Connectors: Carefully unclip the wiring harness connectors from the old module. Inspect the pins for any corrosion or damage.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket.
- Install the New Module: Bolt your VIN-programmed replacement PCM into place and securely reconnect the wiring harnesses. You should hear a distinct click.
- Reconnect the Battery: Re-attach the negative battery terminal. The vehicle is now ready to start.
Guaranteed Compatibility
This module is a direct replacement for several part numbers. Please verify that your original module has one of the following service IDs, typically found on the sticker:
Part Numbers: 09355699, 16266645, 9355699, 16250279, 16258815, 09366810, 9366810
This Electronic Control Module is confirmed to fit a wide range of GM vehicles from this era, including but not limited to the Chevrolet Tahoe, GMC Yukon, Express & Savana vans, S10/Blazer, and various pickup truck models. Please refer to the detailed fitment list to ensure it matches your specific vehicle and options.