Programmed 2008 Savana 2500 ECM 12617568 | Engine Control Module

Restore Your Van’s Performance with a Plug-and-Play Solution

Is your 2008 GMC Savana 2500 van running rough, stalling, or showing a persistent check engine light? A failing Engine Control Module (ECM), often called the PCM, is a common culprit behind these frustrating and costly issues. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can cripple a reliable workhorse. This isn’t just an inconvenience; for a business owner, it’s downtime that costs money. This replacement Engine Control Module, part number 12617568, is the definitive solution to get your van back on the road and running like new.

The biggest hurdle with ECM replacement has always been the expensive and time-consuming trip to the dealership for programming. We eliminate that step entirely. When you purchase this module, we flash it with the latest official GM software updates, specifically matched to your van’s Vehicle Identification Number (VIN). It arrives at your door ready for installation, saving you hundreds in dealer fees and getting your vehicle operational faster.

Is Your GM Vehicle Showing These Symptoms?

A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that the brain of your engine needs attention. This is especially true if you see diagnostic trouble codes (DTCs) like P0601, P0602, P0606, or U0100.

• ✔ Check Engine Light is on or flashing
• ✔ Engine cranks but refuses to start
• ✔ Unexplained drop in fuel economy
• ✔ Rough idling, stalling, or hesitation during acceleration
• ✔ Transmission shifting issues or harsh shifts
• ✔ Failure to pass an emissions test
• ✔ Communication errors with scan tools

A Straightforward Guide to Installation

Installing your pre-programmed 2008 Savana 2500 ECM is a manageable job for a DIYer with basic hand tools. Following these steps ensures a smooth process.

1. Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
2. Locate the ECM: On the 2008 Savana/Express vans, the ECM is typically located in the engine compartment, on the left-hand (driver’s) side, often near the rear of the engine bay.
3. Disconnect Connectors: Carefully unclip the wiring harness connectors from the old ECM. These connectors have locking tabs; be gentle to avoid breaking them.
4. Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you will need it for the new module.
5. Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware.
6. Reconnect Everything: Firmly plug the wiring harness connectors into the new module until they click into place. Reconnect the negative battery terminal.
7. Perform Security Relearn (If Necessary): In many cases, you may need to perform a simple security relearn procedure, which typically involves turning the key to the ‘ON’ position for 10-15 minutes. Instructions are readily available online for your specific model. Your vehicle is now ready to start.

Verified Vehicle Compatibility

This module is a direct replacement for part numbers 12612384, 12622141, and 12617568. It is guaranteed to fit a wide range of GM vehicles. Please verify your specific model and engine option below.