Get Your Workhorse Van Back on the Job
A dead or failing engine computer in your 2004 GMC Savana 1500 isn’t just an inconvenience—it’s a roadblock to getting your work done. When your van is down, business stops. This Powertrain Control Module (PCM) is the definitive, reliable solution to get you back on the road quickly. We take the guesswork and hassle out of the repair by pre-programming this unit specifically to your van’s Vehicle Identification Number (VIN). This means no expensive towing or programming fees at a dealership. It’s a true plug-and-drive fix designed for the hardworking van owner.
Common Symptoms & Your Solution
If your Savana is experiencing issues like a no-start condition, intermittent stalling, harsh or erratic transmission shifting, or a check engine light with communication error codes (such as P0601, P0602, or P0606), a failing PCM is the most likely culprit. Swapping in a generic module from a salvage yard won’t work due to the complex anti-theft systems (VATS/Passlock) and specific calibrations GM uses. Our 2004 Savana 1500 programmed PCM 89017739 arrives ready to solve these problems, restoring the communication and control your engine and transmission need to operate correctly.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Van: We flash the module with the latest GM-approved software using your VIN, ensuring it’s a perfect match for your vehicle’s specific options and systems.
- ✔ Simple Plug-and-Drive Installation: No special tools or dealer visits are required for programming. Simply disconnect the battery, swap the modules, and reconnect. In most cases, you’re ready to go.
- ✔ Resolves Common Drivability Issues: Puts an end to frustrating problems like engine stalling, poor fuel economy, and unpredictable shifting, restoring your van’s original performance.
- ✔ Cost-Effective Repair: Save hundreds of dollars by avoiding dealership diagnostic and programming labor costs. This is a smart, efficient fix for any business or individual.
- ✔ Backed by Our Guarantee: This unit is backed by our one-year replacement warranty, giving you confidence and peace of mind in your purchase.
Expert Insight: The Critical Role of Correct Programming
From over 20 years of experience, I can tell you that on these GM vans, the PCM is more than just an engine controller—it’s the central hub for the entire vehicle. Incorrect programming doesn’t just mean a check engine light; it can prevent the vehicle from starting due to the security system, cause the transmission to shift dangerously, and even affect the ABS. We had a customer with a fleet of Savana vans who was replacing transmissions, thinking they were failing. The real issue was a batch of poorly programmed PCMs sending the wrong signals. Getting a correctly programmed 2004 Savana 1500 programmed PCM 89017739 from the start saved his business thousands in unnecessary repairs and downtime.
Frequently Asked Questions
What information do you need from me?
After you place your order, we will need the 17-digit Vehicle Identification Number (VIN) from your 2004 Savana 1500. This is typically found on your driver’s side dashboard (visible through the windshield) or on the door jamb sticker. This allows us to program the module perfectly for your vehicle.
Is this a difficult part to install?
No, this is a straightforward installation for someone with basic mechanical skills. The PCM is located in the engine compartment. The process involves disconnecting the negative battery terminal, unplugging the electrical connectors from the old PCM, unbolting it, and then installing the new one in the reverse order. No special programming tools are needed.
Will I need to perform a security relearn procedure?
In some cases, you may need to perform a simple security relearn procedure, also known as a VATS or Passlock relearn. This can be done without any tools and typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. We include instructions for this simple process.
What is the difference between a PCM, ECM, and ECU?
The terms are often used interchangeably. PCM (Powertrain Control Module) is the most accurate term for this GM part, as it controls both the engine and the transmission. ECM (Engine Control Module) and ECU (Engine Control Unit) are other common names for the same component.
Does this part fit other GM vehicles?
Yes, this PCM hardware (service number 12586243, part number 89017739) was used in a very wide range of 2004 GM trucks, vans, and SUVs. However, the programming is vehicle-specific. This listing is for a unit that will be programmed specifically for a 2004 GMC Savana 1500. If you have a different vehicle, please find the listing that matches your model to ensure correct programming.