Get Your Workhorse Back on the Road, Fast.
Is your 2004 GMC Savana 1500 letting you down? A faulty Powertrain Control Module (PCM), also known as an Engine Control Module (ECM), is often the hidden culprit behind frustrating issues that can bring your workday to a grinding halt. If you’re dealing with stalling, poor fuel economy, erratic shifting, or a persistent Check Engine Light, you’re not just losing time—you’re losing money. This pre-programmed engine computer is the definitive, no-hassle solution to get your van running reliably again.
Common Symptoms & Your Solution
A failing PCM can manifest in numerous ways, often mimicking other component failures. If you’ve replaced sensors and parts with no success, it’s time to look at the vehicle’s brain. This module is the direct fix for:
- Engine stalling or cutting out unexpectedly
- Difficulty starting or a complete no-start condition
- Poor engine performance and reduced power
- Harsh or incorrect automatic transmission shifting
- Drastically decreased fuel mileage
- Check Engine Light with communication-related codes (e.g., U0100, P0601, P0606)
We take the guesswork out of the repair. By providing us with your vehicle’s VIN, we program this 2004 GMC Savana 1500 PCM Programmed unit specifically for your van. It arrives with the latest GM software updates, ensuring optimal communication between all your vehicle’s systems.
Features & Benefits
- ✔ VIN-Specific Programming: Arrives ready to install with no need for expensive dealership programming. This is a true plug-and-play solution to minimize your downtime.
- ✔ Restored Engine Performance: Flashed with the newest GM software updates to correct factory bugs and optimize fuel delivery, ignition timing, and transmission strategy.
- ✔ Guaranteed Compatibility: A direct, reliable replacement for OEM part numbers 12586243 and 89017739, ensuring a perfect fit and function.
- ✔ Cost-Effective Repair: Avoid the high costs and long wait times associated with dealership service departments. This is a smart, efficient fix for your work vehicle.
- ✔ One-Year Protection: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
Expert Insight: The Story of a Stalling Work Van
We recently worked with a local contractor whose ’04 Savana was his mobile office. It started stalling intermittently at job sites, making him look unreliable to his clients. He’d already replaced the fuel pump and crank sensor with no luck. The problem was a failing computer. Once he installed our pre-programmed PCM, the van fired up and ran perfectly. He was back to work the same afternoon, confident his van wouldn’t let him down again. That’s the peace of mind a reliable 2004 GMC Savana 1500 PCM Programmed module provides.
Your GMC Savana is an essential tool for your business or your projects. Don’t let a faulty computer dictate your schedule. This module is the key to restoring the dependability you count on. By ordering this 2004 GMC Savana 1500 PCM Programmed unit, you are choosing a straightforward, reliable, and efficient solution to get back on the road and back to what matters most.
Frequently Asked Questions
How do I provide my VIN number?
After completing your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit VIN, or send it to us through the contact form on our website with your order number. We cannot ship your part until we receive the VIN.
Will I need to do anything after installation?
In most cases, this is a plug-and-play installation. However, some GM vehicles of this era may require a security relearn procedure (often called Passlock or VATS) and a Crankshaft Variation Relearn (CASE). These are simple procedures that can often be done without special tools. Instructions can be found online or in a service manual.
Is this a brand new part?
This is a high-quality, fully tested, and functional replacement part. Each module is inspected and programmed by our technicians to ensure it meets or exceeds original factory performance specifications.
What if my original part number doesn’t match exactly?
This module is a direct replacement for part numbers 12586243 and 89017739. As long as your vehicle is on the compatibility list and you provide the correct VIN, this unit will function correctly, as many part numbers are interchangeable.
How long does the programming process take?
Programming is typically completed within 1-2 business days after we receive your VIN. We understand the urgency of getting your vehicle repaired and work quickly to get your part on its way to you.