Restore Peak Performance to Your GM Truck or Van
Is your truck, van, or SUV suffering from erratic shifting, a frustrating no-start condition, poor fuel economy, or a persistent Check Engine light? A failing Powertrain Control Module (PCM) is often the root cause, disrupting critical engine and transmission functions and leaving you sidelined. This replacement engine computer is the definitive solution to get your vehicle back on the road and running exactly as the factory intended.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, often mimicking other sensor failures. If you’re experiencing issues like harsh shifting, intermittent stalling, false diagnostic trouble codes (DTCs), or a complete failure to communicate with scan tools, it’s time to look at the vehicle’s brain. This unit is the direct fix for these complex electrical problems. We pre-program this GM 89017733 PCM specifically to your vehicle’s unique Vehicle Identification Number (VIN), loading it with the latest software updates from General Motors. This ensures seamless integration and optimal performance right out of the box.
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for installation, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Latest GM Software Updates: Ensures your vehicle benefits from the most current drivability, emissions, and performance calibrations available.
- ✔ Restores Factory Operation: Cures common issues like poor idle, transmission problems, and inaccurate sensor readings caused by a failing module.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for the original unit, ensuring all connectors and mounting points align perfectly.
- ✔ Backed by our solid one-year replacement warranty for your peace of mind.
Expert Insight from Our Technicians: Before condemning your PCM, always perform a thorough check of your vehicle’s battery, alternator, and primary ground connections (engine to chassis, battery to chassis). A weak battery or a corroded ground wire can cause voltage drops and erratic signals that mimic PCM failure. Ensuring your electrical foundation is solid is the first step in any successful electronic diagnosis and repair.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is the central computer of your vehicle. It controls all aspects of the engine and transmission, including fuel injection, spark timing, emissions systems, and shift points, to ensure optimal performance, fuel economy, and reliability.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. We cannot program and ship your GM 89017733 PCM without it. Please double-check the VIN for accuracy before sending.
Is this part difficult to install?
For most of the compatible vehicles, the PCM is located in the engine bay and is held in by a few bolts and electrical connectors. Installation is typically straightforward for someone with basic mechanical skills. However, we always recommend consulting a service manual for your specific vehicle. Remember to disconnect the battery before starting work.
Will I need to do anything after installation?
In some cases, your vehicle may require a security relearn procedure (often called a CASE relearn or Passlock relearn) to sync the new PCM with your vehicle’s anti-theft system. This procedure can usually be done without special tools and instructions are widely available online for your specific model.
How do I know this part will fit my vehicle?
This part is a direct replacement for original part number 89017733 and several other service numbers listed in the description. Please check the fitment list and verify that your vehicle’s year, make, model, and engine size are included. Matching the service number on your old part is the best way to guarantee compatibility.