Restore Your Van’s Performance and Reliability
Is your 1998 GMC Savana 2500 acting up? Unexplained stalling, a persistent check engine light, or rough, unpredictable engine behavior can turn a dependable workhorse into a source of constant frustration. These aren’t just annoyances; they’re signs that the very brain of your vehicle, the Powertrain Control Module (PCM), may be failing. It’s time to stop guessing and get back to the confident, worry-free driving you deserve. This replacement PCM is the definitive solution, arriving at your door fully programmed to your van’s specific VIN with the latest GM software updates.
Key Symptoms and Lasting Benefits
A faulty PCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the reliable fix you need to get back on the road with peace of mind.
- ✔ Check Engine Light: Clears persistent trouble codes, especially internal module errors like P0601 or P0606.
- ✔ Poor Performance: Solves issues like rough idling, hesitation during acceleration, and decreased power.
- ✔ Reduced Fuel Economy: Restores proper engine management for optimal fuel efficiency, saving you money at the pump.
- ✔ Intermittent Stalling: Eliminates the dangerous and unpredictable engine cut-outs that leave you stranded.
- ✔ No-Start Condition: Fixes starting problems related to a non-responsive computer.
- ✔ Failed Emissions Test: Ensures your vehicle’s systems are communicating correctly to pass state inspections.
From the Technician’s Bay
“I had a customer with a ’98 Express van, same platform as the Savana, that had been to three other shops. It had a ghost-in-the-machine issue—it would run fine for days, then suddenly stall at a stoplight. No codes, no warnings. We checked everything: fuel pump, ignition system, sensors. Finally, we scoped the PCM’s outputs and saw the injector driver circuits dropping out intermittently. We installed one of these VIN-programmed modules, and the van has been running solid for over a year. The customer was thrilled to finally trust his work van again.”
Simple Installation for a Confident Fix
Because we flash the module with your vehicle’s VIN before shipping, the installation process is straightforward. There’s no need for an expensive trip to the dealership for programming. Follow these steps to get your Savana running right.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On most 1998 Savana vans, the PCM is located in the engine compartment, typically on the driver’s side fender or near the battery.
- Disconnect the Old Module: Carefully unplug the wiring harness connectors. They have locking tabs that may need to be gently pried up. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed PCM into place. Firmly reconnect the wiring harnesses, ensuring the locking tabs click securely into position.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Final Steps: Start the engine. In some cases, a security relearn procedure (often called a CASE relearn) may be necessary for full functionality, which can be performed with a capable scan tool or by following a simple key-cycle procedure.
Guaranteed Compatibility for Your GM Vehicle
This module is a direct replacement for part numbers 09366810, 16250279, and 09355699. It is confirmed to fit the following vehicles. Please provide your VIN upon purchase to ensure perfect programming for your specific application.
- 1999 Cadillac Escalade
- 1998-1999 Chevrolet & GMC C/K 1500, 2500, 3500 Pickups (Gasoline)
- 1998-1999 Chevrolet Suburban & Tahoe (Gasoline)
- 1998-1999 GMC Yukon (Gasoline)
- 1998-1999 Chevrolet Express & GMC Savana 1500, 2500, 3500 Vans (Gasoline)
- 1998-1999 Chevrolet Astro & GMC Safari
- 1998 Chevrolet S10 & GMC Sonoma (4.3L)
- 1998 Chevrolet Blazer & GMC Jimmy (4.3L)
- 1998 Oldsmobile Bravada (4.3L)
- 1998 GMC Envoy (4.3L)
- 1998 Isuzu Hombre (4.3L)
Your Questions Answered
Do I need to send you my old PCM?
No, there is no core charge or need to send your original module to us. This is a direct purchase of a replacement part.
What is VIN programming and why is it important?
VIN programming involves loading your vehicle’s unique Vehicle Identification Number and its specific factory software onto the PCM. This ensures the module communicates correctly with your engine, transmission, anti-lock brakes, and other systems, just as the original did. It’s the key to a true plug-and-play installation.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. We cannot ship your order until we receive this information, as the programming is a critical part of the process.
Will I need to do anything else after installation?
In most cases, the vehicle will start and run correctly immediately. However, for some vehicles, a Crankshaft Variation Relearn (also known as a CASE relearn) is recommended to prevent a P1336 trouble code. This procedure can be done with a compatible professional scan tool.
Is this part difficult to install for a DIYer?
The physical replacement is one of the easier repairs you can do. It typically involves basic hand tools to unbolt the module and disconnect the wiring. Since we handle the complex programming, you avoid the most difficult part of the job.