Restore Peak Performance to Your 1998 GMC Savana 2500
Is your trusty 1998 GMC Savana 2500 van running rough, shifting erratically, or failing to start? These are common indicators of a failing Powertrain Control Module (PCM), the central computer that manages your vehicle’s engine and transmission. A faulty PCM can lead to a cascade of frustrating issues, including a persistent Check Engine Light, poor fuel economy, and unpredictable performance. This replacement PCM, part number 09355699, is the definitive solution to restore your van’s reliability and drivability.
Symptoms of a Failing Powertrain Control Module
If you’re experiencing any of the following issues, a failing PCM is a likely culprit. Replacing it can resolve these problems and get your vehicle back on the road, running as it should.
- ✔ Check Engine Light: The most common symptom. The light may be on constantly or illuminate intermittently with various trouble codes.
- ✔ Engine Stalling or Misfiring: The engine may stumble, misfire, or stall completely while driving or at idle.
- ✔ Poor Fuel Economy: An inefficiently running engine, managed by a faulty PCM, will consume more fuel than usual.
- ✔ Transmission Shifting Problems: You might notice harsh shifts, delayed engagement, or the transmission getting stuck in one gear (limp mode).
- ✔ No-Start Condition: In severe cases of failure, the PCM may not be able to properly control the fuel or ignition systems, preventing the engine from starting at all.
- ✔ Failed Emissions Test: A malfunctioning PCM can prevent the engine from running cleanly, leading to an automatic failure at the emissions station.
Why Choose Our 1998 Savana 2500 PCM?
This isn’t just a generic part off the shelf. We provide a comprehensive, plug-and-play solution tailored specifically to your vehicle. When you order from us, we flash the module with the latest official GM software updates using the Vehicle Identification Number (VIN) you provide. This critical step ensures that the PCM has the correct calibration for your van’s specific engine, transmission, and options. This process eliminates the need for an expensive trip to the dealership for programming, saving you time and money. This module is a direct replacement for part numbers 09355699, 16250279, and 09366810, and is compatible with a wide range of GM trucks and vans from that era, including the Chevrolet Express, GMC Sierra, Chevrolet Tahoe, and more.
Installation is straightforward for a DIY mechanic or any professional technician. Simply disconnect the battery, locate your old PCM in the engine compartment, unplug the wiring harnesses, unbolt the unit, and install the new one in its place. After installation, you may need to perform a simple security relearn procedure, which can often be done without special tools. Get your workhorse van back in service with a reliable, correctly programmed PCM.
Frequently Asked Questions
Do I need to program this module?
No. We handle the programming for you before we ship the part. Simply provide your vehicle’s VIN at checkout, and we will flash the module with the latest GM software for your specific vehicle.
Where is the PCM located on my 1998 GMC Savana 2500?
On most 1998 GMC Savana and Chevrolet Express vans, the PCM (or ECM) is located in the engine compartment, typically on the driver’s side near the battery or firewall.
What is a VIN and why do you need it?
The VIN is your vehicle’s unique 17-digit identification number. We use it to access the exact factory software and calibrations for your van’s engine, transmission, and other options, ensuring perfect compatibility and performance.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, then yes, this part will resolve the issue. It’s crucial to properly diagnose the vehicle first to ensure the PCM is the root cause of the problem.
Is this a simple plug-and-play installation?
Yes, the physical installation is plug-and-play. Because we program it to your VIN, no further dealer programming is needed. However, you may need to perform a security relearn procedure (also known as a CASE relearn) after installation, which syncs the new module with your vehicle’s anti-theft system. This procedure can typically be done without special tools.