Restore Your GM Truck’s Brain and Brawn
Is your powerful Cadillac Escalade, Silverado, or Hummer H2 suddenly feeling sluggish, unpredictable, or just plain stubborn? A nagging check engine light, erratic shifting, or a frustrating no-start condition often points directly to a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it’s a critical failure that sidelines your vehicle. This replacement Escalade EXT PCM 89017750 is the definitive, hassle-free solution to get your truck’s heart and mind back in perfect sync, restoring the performance and reliability you depend on.
Common Symptoms & Your Direct Solution
A failing PCM can manifest in numerous ways, turning your dependable truck into a source of stress. If you’re experiencing any of the following, this pre-programmed module is your answer:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606
- Poor or declining fuel economy
- Harsh or erratic automatic transmission shifting
- Engine stalling, stumbling, or rough idling
- Complete no-start or intermittent starting issues
Instead of wrestling with a generic, unprogrammed unit that requires an expensive trip to the dealership, this module arrives at your door ready for installation. We flash it with the latest GM software updates specifically matched to your vehicle’s VIN, ensuring a seamless and effective repair.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We handle all the complex programming before we ship. This eliminates the need for expensive scan tools or dealer-level software, making it a true plug-and-play solution.
- ✔ Loaded with the Latest GM Software: Your module comes with the most current factory calibrations, ensuring optimal engine performance, transmission function, and fuel efficiency.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for the original unit, guaranteeing a straightforward installation with no modifications needed. This Escalade EXT PCM 89017750 is the correct part for a wide range of GM vehicles.
- ✔ Resolves Drivability Issues: Puts an end to frustrating problems like stalling, rough idle, and poor shifting, restoring the smooth, powerful driving experience you expect.
- ✔ This unit is backed by our one-year replacement warranty: Your purchase is protected, giving you complete confidence and peace of mind.
An Expert’s Note on GM Programming
“In my 20+ years of diagnostics, I’ve seen countless issues arise from improperly programmed modules. On these early 2000s GM trucks, the PCM is the master controller for everything from the 4L60E/4L80E transmission shift points to the fuel trim and ignition timing. Using a generic, un-flashed computer is a recipe for disaster. Our VIN-specific programming ensures all systems communicate correctly from the moment you turn the key. It’s the difference between a lasting repair and a recurring headache.”
Frequently Asked Questions
Do I need to do any programming after I receive this PCM?
No. This module is fully programmed to your vehicle’s specific VIN before it is shipped. It is designed to be a plug-and-play installation. In some cases, a CASE (Crankshaft Position System Variation) relearn procedure may be required with a capable scan tool for optimal performance, but the core programming is complete.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically add it as a note to your order during checkout or reply to your order confirmation email. We cannot ship the module until we receive your VIN.
Is this compatible with other part numbers?
Yes, this PCM is a direct replacement for several service numbers, including 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802. Please check the fitment list to confirm compatibility with your specific make and model.
What tools are needed for installation?
Installation is straightforward for someone with basic mechanical skills. You will typically need a set of metric sockets (often 10mm) to disconnect the battery and remove the module’s mounting bolts and electrical connectors. Always disconnect the negative battery terminal before starting work.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM directly controls transmission line pressure and shift solenoids. If your shifting issues are caused by faulty electronic commands from the module, this new Escalade EXT PCM 89017750 will resolve them. However, it will not fix internal mechanical failures within the transmission itself.