Restore Peak Performance to Your 2004 GM Vehicle
Is your 2004 Chevrolet, GMC, Buick, or Cadillac suffering from frustrating and unpredictable issues? An erratic check engine light, poor fuel mileage, stalling, or a complete no-start condition can often be traced back to a failing Powertrain Control Module (PCM), the central computer of your vehicle. This direct-fit 89017739 Engine Control Module is the definitive solution to get your truck, van, or car back on the road and running exactly as it should.
Common Symptoms & Your Solution
A faulty engine computer can manifest in numerous ways, making diagnosis difficult. If you’re experiencing any of the following, a failing PCM is the likely culprit:
- Persistent Check Engine Light (CEL) with communication-related trouble codes (e.g., P0601, P0606).
- Engine stalling, stumbling, or hesitating during acceleration.
- Noticeable decrease in fuel economy.
- Harsh or incorrect transmission shifting.
- The vehicle cranks but refuses to start.
- Apparent loss of spark or fuel injector pulse.
This pre-programmed 89017739 Engine Control Module is designed to resolve these issues by replacing the faulty original unit with a reliable, updated component tailored specifically to your vehicle.
Features & Benefits
- ✔ VIN-Specific Programming: We flash this module with the latest GM-certified software using your vehicle’s VIN. This ensures perfect compatibility with your engine, transmission, and factory options.
- ✔ Simplified Installation: Because the unit arrives programmed, it eliminates the need for expensive dealership trips for software flashing. A standard security relearn procedure is typically all that’s required.
- ✔ Restored Drivability: Get back the smooth idle, crisp throttle response, and reliable performance you expect from your vehicle.
- ✔ Direct-Fit Replacement: This module matches the original factory part number 89017739 and 12586243, guaranteeing a perfect fit and correct connections.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming
Many people assume you can just swap an engine computer from one vehicle to another. On modern GM vehicles, this is not the case. The PCM is integrated with the vehicle’s anti-theft system (VATS/Passlock) and contains specific calibration files for your exact powertrain and emissions equipment. Our VIN programming service handles all of this for you. We ensure the software is correct, preventing the compatibility headaches and no-start situations that come with using a generic, non-programmed module.
Frequently Asked Questions
What do I need to do after I purchase this module?
After you place your order, you must provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). We cannot ship the module until we have this information to program it correctly.
Is this module truly “plug and play”?
It is pre-programmed for your vehicle, which handles the most complex part of the installation. However, you will likely need to perform a simple security relearn procedure, also known as a CASE relearn. This procedure can be done without special tools and instructions are widely available online for your specific model.
How can I be sure this will fix my vehicle’s problem?
This 89017739 Engine Control Module will correct any issues directly caused by a faulty original computer. While the symptoms listed are very common for PCM failure, we always recommend a thorough diagnosis by a qualified technician to rule out other potential causes like bad sensors or wiring problems.
Does this part fit my 2004 SSR?
Yes, this module is compatible with the 2004 Chevrolet SSR and an extensive list of other 2004 GM vehicles, including the Corvette, Silverado, Sierra, Trailblazer, Envoy, and many more. Please check the detailed fitment list on this page to confirm compatibility with your specific model and options.
How does the one-year replacement warranty work?
If the module fails within one year from the date of purchase, we will provide a direct replacement unit. This covers defects in the part itself. Please contact us for complete details and to initiate a claim.