Get Your Work Van Running Reliably Again
A failing engine computer in your 1998 GMC Savana 3500 isn’t just an inconvenienceโit’s a roadblock that costs you time and money. If you’re dealing with frustrating no-start conditions, a rough idle, stalling, or a check engine light that won’t go away, you’ve found the solution. This Powertrain Control Module (PCM) is the dependable heart of your vehicle’s engine management system, professionally programmed and ready to get your van back in service.
Common Symptoms & Your Solution
A faulty PCM can cause a wide range of confusing issues that often mimic other failing parts. If your Savana is experiencing any of the following, a failing computer is the likely culprit:
- Engine cranks but refuses to start
- Random stalling, especially at idle or low speeds
- Poor fuel economy and loss of power
- Harsh or erratic automatic transmission shifting
- Multiple, unrelated diagnostic trouble codes (DTCs)
- Check Engine Light is on with codes for sensors you’ve already replaced
This isn’t just a replacement part; it’s a complete, ready-to-install fix. We take a quality, tested module and program it with the latest official GM software updates specifically for your van’s Vehicle Identification Number (VIN). This ensures that your Programmed 1998 GMC Savana 3500 PCM restores your vehicle’s original performance, emissions, and drivability standards right out of the box.
Features & Tangible Benefits
- โ VIN-Programmed for Your Van: This module arrives ready for a straightforward installation. No need for an expensive trip to the dealership for programming.
- โ Loaded with Latest GM Updates: We flash the unit with the most current software, which can solve factory bugs and improve engine and transmission performance.
- โ Restored Engine Performance: Get back the smooth idle, crisp throttle response, and reliable power your work depends on.
- โ Plug & Play Design: Simply disconnect the old module and connect this one. In most cases, you’ll be back on the road in under an hour.
- โ Direct Replacement for Part #09366810: Also compatible with part numbers 16250279 and 09355699 for a perfect fit and function.
- โ Backed by Our Warranty: This unit is backed by our one-year replacement warranty.
Expert Insight: The Ghost in the Transmission
A customer with a ’98 Express van (a sister vehicle to the Savana) was about to spend over a thousand dollars on a transmission rebuild. The van was shifting hard from first to second and occasionally wouldn’t shift into overdrive. All the transmission shop’s diagnostics came back clean. The real problem? The PCM. The computer wasn’t sending the correct signals to the transmission solenoids. Installing a properly Programmed 1998 GMC Savana 3500 PCM not only fixed the shifting but saved the customer a massive, unnecessary repair bill. Always consider the PCM when you have unexplainable transmission issues.
Frequently Asked Questions
Do I need to do any programming after I install it?
No. This module arrives fully programmed to your vehicle’s VIN and is ready for installation. On some models, you may need to perform a simple security relearn procedure that takes about 10-15 minutes and requires only your key. We include instructions for this easy process.
How do I provide my vehicle’s VIN?
After you complete your purchase, you can add your 17-digit VIN to the ‘notes’ section at checkout. If you forget, don’t worryโwe will contact you via email to request it before we program and ship your module.
Is this the correct part for my vehicle?
This module is a direct replacement for part numbers 09366810, 16250279, and 09355699. Please check the extensive fitment list on this page or match the part number on your existing computer to ensure compatibility. If you’re unsure, feel free to contact us with your VIN.
What’s the difference between a PCM, ECM, and ECU?
These acronyms are often used interchangeably. PCM (Powertrain Control Module) is the most accurate term for this GM vehicle, as it controls both the engine (Engine Control Module – ECM) and the automatic transmission. ECU (Engine Control Unit) is a more generic term. For your Savana, they all refer to this one computer.
Should I fix other known issues before installing this PCM?
Yes. A PCM is the ‘brain,’ but it relies on good information from sensors. If you have known bad sensors, wiring shorts, or mechanical issues, you should repair those first. Installing a new Programmed 1998 GMC Savana 3500 PCM into a vehicle with existing faults can damage the new module.