Is Your 1998 Express Van Experiencing Engine Troubles?
If your Chevrolet Express 2500 is suffering from issues like a persistent Check Engine Light, rough idling, stalling, poor fuel economy, or a complete no-start condition, the culprit is often a failing Powertrain Control Module (PCM). As the central computer of your vehicle, the PCM is responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it begins to fail, it can cause a wide range of frustrating and performance-robbing symptoms that can be difficult to diagnose.
Common Symptoms of a Failing 1998 Express 2500 PCM
A faulty PCM can manifest in numerous ways. If you’re noticing any of the following, it’s time to consider a replacement:
- ✔ Unexplained Check Engine Light (with codes related to module failure or sensor circuits)
- ✔ Engine stalling or cutting out while driving
- ✔ Rough or erratic idling
- ✔ Difficulty starting the engine or a no-start condition
- ✔ Noticeable decrease in fuel efficiency
- ✔ Harsh or incorrect automatic transmission shifting
- ✔ Failure to pass an emissions test
The Direct-Fit, Programmed Solution
This isn’t just a generic, off-the-shelf part. This is a direct-fit replacement Powertrain Control Module for your 1998 Chevrolet Express 2500 Van and a wide range of other GM trucks and SUVs from that era. The most critical part of the process is that we program the module specifically for your vehicle using your VIN. This ensures that all factory settings, engine parameters, and security information are correct right out of the box. We load the latest, most stable software updates from GM, which can often resolve underlying drivability issues that were present even with the original module.
By providing us with your VIN upon purchase, you eliminate the need for an expensive trip to the dealership for programming. This module arrives at your door ready for a straightforward installation, saving you both time and money.
Guaranteed Compatibility
This module is a direct replacement for several original equipment part numbers, including:
- 09366810
- 16250279
- 09355699
It is designed to fit a vast array of GM vehicles from the late 1990s, including various Chevrolet and GMC pickups, Suburbans, Tahoes, Yukons, and vans. Please verify your part number or consult the detailed fitment list to ensure this is the correct module for your specific application.
Frequently Asked Questions
Do I need to do any programming after I receive this PCM?
No. We pre-program the module to your vehicle’s specific VIN before shipping. However, on many GM vehicles of this era, you may need to perform a simple security relearn procedure (often called a Passlock or VATS relearn) which can typically be done in your driveway without any special tools. Instructions are readily available online for this process. In some cases, a Crankshaft Variation Relearn (CASE relearn) may be needed with a scan tool to clear a specific trouble code, but the vehicle will run and drive without it.
Where do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive and validate your VIN, as the programming is essential for the part to function.
Is this a brand new part?
This is a high-quality, fully tested replacement part that meets or exceeds original equipment specifications. Each unit is inspected and programmed with the latest GM software to ensure reliability and performance.
Where is the PCM located on my 1998 Express Van?
On the 1998 Express and Savana vans, the Electronic Control Module is typically located in the engine compartment, on the driver’s side, often near the battery or air filter housing. Always disconnect the battery before attempting to remove or install the module.
What if my original part number is not on your list?
This module replaces several common part numbers. If your part number is not listed as 09366810, 16250279, or 09355699, please contact us with your vehicle’s information and the number on your original module. We can verify compatibility for you.