Get Your Workhorse Running Right Again
Is your 2003 GMC Savana 3500 letting you down? When your reliable work van starts acting up with stalling, erratic shifting, or a persistent Check Engine Light, a failing Powertrain Control Module (PCM) is often the culprit. A down vehicle means lost time and lost income. This isn’t just a replacement part; it’s the definitive solution to get you back on the road and back to work, fast. This module arrives fully programmed to your vehicle’s specific VIN, loaded with the latest factory software updates from GM to ensure optimal performance and reliability from the moment you install it.
Common Symptoms & Your Solution
If your truck or van is experiencing any of the following issues, this module is the solution you’ve been looking for. A faulty PCM can cause a wide range of frustrating problems, including diagnostic trouble codes (DTCs) like P0601, P0602, or P0606. Don’t let guesswork cost you more downtime. This Programmed 2003 GMC Savana 3500 PCM directly addresses these core electrical failures.
- Engine stalling or cutting out unexpectedly
- Failure to start or intermittent starting problems
- Harsh or incorrect automatic transmission shifting
- Reduced fuel economy
- Illuminated Check Engine Light (CEL) that won’t go away
- Loss of communication with diagnostic scan tools
Features & Tangible Benefits
- โ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN, ensuring it communicates perfectly with all other onboard systemsโno compatibility issues.
- โ Latest GM Software Updates: Your new PCM comes loaded with the most current software, correcting common factory drivability issues and improving overall efficiency.
- โ True Plug-and-Play Installation: Because it’s pre-programmed, you can avoid a costly trip to the dealership. In most cases, installation is straightforward, getting you back on the road in hours, not days.
- โ Direct-Fit OEM Replacement: This unit is an exact match for the original, guaranteeing a perfect fit and correct connections for part number 89017733 and compatible service numbers.
- โ Restored Drivability: Experience smoother shifting, a stable idle, and the dependable engine performance your business relies on.
- โ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The Cost of Downtime
We once worked with a plumbing contractor whose 2003 Express vanโa nearly identical platformโwas dead in a customer’s driveway. Every day it sat, he was losing hundreds of dollars in service calls. The dealer quoted him over a week just to diagnose it. We sent him a Programmed 2003 GMC Savana 3500 PCM overnight. He installed it himself in under an hour, performed the simple security relearn, and was back on the job the next morning. He didn’t just save money on the part; he saved his week’s income. That’s the real value of a ready-to-install solution.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your module until we receive this information, as the programming is essential for it to function in your vehicle.
Is this part difficult to install?
For someone with basic mechanical skills, the installation is very manageable. The module is typically located in the engine bay (on the LH side, under or near the battery). The primary steps involve disconnecting the battery, unplugging the electrical connectors, unbolting the old unit, and installing the new one. Always disconnect the battery before starting.
Will I need to do anything after installation?
In many cases, the vehicle will start and run immediately. However, some GM vehicles of this era require a security relearn procedure (often called Passlock or VATS relearn) to allow the engine to start. This is a simple procedure that takes about 30 minutes and does not require any special tools. Instructions can be easily found online or we can assist you.
What does “programmed” actually mean?
Programming, or “flashing,” is the process of loading the vehicle-specific software onto the module. This software controls everything from fuel injection and spark timing to transmission shift points. Without the correct programming for your specific VIN, the module will not work. We handle this critical step for you.
My old part has a different service number on it. Will this work?
Yes. Part number 89017733 is the primary part number, but GM often uses multiple service numbers for the same component. This module is a direct replacement for all service numbers listed in the description, including 12581565, 12570557, 12576106, and others. We program it to function identically to your original.