Is Your Savana Van Running Rough, Stalling, or Refusing to Start?
As a technician with over two decades of experience under the hood, I know that for a workhorse like your 2005-2007 GMC Savana 1500, downtime isn’t just an inconvenienceโit’s lost money. When the Powertrain Control Module (PCM), the computer brain of your engine, starts to fail, it can create a host of confusing and frustrating problems. You might be experiencing erratic shifting, a persistent Check Engine Light with no clear cause, poor fuel economy, or the dreaded no-start condition that leaves you stranded.
This isn’t just a part; it’s the solution to get your van back in service. We are offering a genuine GM-spec Powertrain Control Module, service number 12602801, which is also a direct replacement for part numbers 12589462 and 89017749.
The Real-World Difference: A Story from the Shop
From the Bay: “A customer’s ’06 Savana 2500 came in on a tow truck last month with a crank-no-start issue. The owner had already replaced the fuel pump, thinking that was the culprit. After confirming good fuel pressure and spark, our diagnostics led us to the PCM. The driver circuit for the fuel pump relay inside the module had failedโa classic issue I’ve seen on dozens of these GM vans and trucks. We installed one of our pre-programmed modules, performed the security relearn, and the van fired right up. He was back on the road for his plumbing business the same afternoon.”
Why Choose Our Programmed 2005-2007 Savana 1500 PCM?
Buying a used module from a junkyard or an unprogrammed unit online is a gamble. It won’t have the correct software for your van’s specific options, and it will be locked to the donor vehicle’s anti-theft system, leaving you with a van that still won’t start. Our process eliminates that headache entirely.
- โ VIN-Specific Programming: We flash this module with the latest GM-certified calibration specifically for your van’s Vehicle Identification Number (VIN). This ensures perfect compatibility.
- โ Plug-and-Play Solution: Because it’s programmed for your VIN, you can install it yourself without needing an expensive trip to the dealership for programming.
- โ Resolves Common Failures: A new PCM is the definitive fix for a wide range of issues, including:
- Harsh or erratic automatic transmission shifting
- Unexplained Check Engine Light illumination
- Engine stalling or stumbling
- Complete no-start conditions
- False sensor codes (e.g., O2, MAF) caused by internal module faults
- โ Broad Compatibility: This module is the correct fit for a wide array of GM trucks and vans from this era, ensuring a reliable, OEM-spec repair.
Simple, Straightforward Installation Guide
You don’t need to be a master mechanic to replace this module. With basic hand tools, you can have your Savana running properly in under an hour.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On your Savana van, the PCM is located in the engine compartment, typically on the driver’s side towards the rear.
- Disconnect the Wiring: The connectors have lever-lock mechanisms. Gently pull the levers to release the wiring harnesses from the module. Inspect the connectors for any corrosion or bent pins before proceeding.
- Unbolt the Old Module: Remove the bolts or nuts holding the PCM bracket in place and carefully lift the old module out.
- Install the New Module: Seat your new, pre-programmed PCM into the bracket and secure it with the mounting hardware.
- Reconnect Everything: Plug the wiring harnesses back into the new module until the levers click securely into place. Reconnect the negative battery terminal.
- Perform Security Relearn (Crucial Step): Turn the key to the ‘ON’ position (don’t start the engine). The security light may be flashing. Leave the key on for 10-12 minutes, or until the light goes solid or turns off. Turn the key off for 10 seconds. Repeat this cycle two more times (for a total of three 10-minute cycles). After the third cycle, the vehicle will have relearned the new PCM and should start normally.