Get Your Truck Back on the Road, Fast.
Is your Silverado, Sierra, or Savana van running rough, refusing to start, or throwing a check engine light that just won’t go away? A failing Powertrain Control Module (PCM) is often the culprit, acting like a confused brain for your vehicle’s engine. This can leave you stranded and losing valuable time and money. This module is the reliable, straightforward solution to get your workhorse running strong again. We take the guesswork out of the repair by pre-programming this unit to your vehicle’s specific VIN, ensuring it’s ready for installation right out of the box.
Common Symptoms & Your Solution
If you’re experiencing any of the issues below, a quality 89017749 PCM replacement is your most effective solution. A faulty module can cause a wide range of frustrating problems, including:
- Check Engine Light with communication-related DTCs (e.g., P0601, P0605, P0606)
- Vehicle won’t start or stalls intermittently
- Poor fuel economy and reduced engine power
- Harsh or erratic automatic transmission shifting
- Apparent failure of multiple sensors at once
- Failure to pass an emissions test
Installing this professionally programmed PCM resolves these core electrical issues, restoring your vehicle’s original performance, fuel efficiency, and dependability.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the latest GM software updates using your VIN. This eliminates the need for an expensive trip to the dealership for programming.
- ✔ Direct-Fit Replacement: Engineered to be a direct replacement for OEM part numbers 89017749, 12589462, and 12602801, ensuring a perfect fit and correct electronic communication.
- ✔ Restored Engine Performance: A properly functioning PCM ensures precise fuel delivery, ignition timing, and transmission shifting, bringing back the power and smoothness you expect from your truck.
- ✔ Cost-Effective Solution: Avoid the high costs and programming fees of a dealership part. This is the smart, reliable fix to get you back on the road without breaking the budget.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming
As a technician, I’ve seen countless jobs go wrong because of an improperly matched computer. Simply swapping a used module from another truck often leads to a no-start condition due to the vehicle’s anti-theft system or compatibility mismatches with other onboard modules. Our VIN-specific programming service is not just a convenience—it’s a critical step that ensures all the electronic systems in your truck communicate correctly from the moment you turn the key. This is the key to a successful and lasting repair.
Stop chasing electrical gremlins and replace the core of your engine’s management system. By ordering a professionally programmed 89017749 PCM replacement, you’re not just buying a part; you’re investing in reliability and the confidence to tackle any job. After you place your order, simply provide us with your vehicle’s VIN, and we’ll handle the rest.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential because it allows us to program the PCM with the exact software and calibrations for your truck’s specific engine, transmission, and options. This ensures perfect compatibility and function.
Is this a plug-and-play part?
Yes, because we program it to your VIN, it is designed to be plug-and-play. However, depending on your vehicle’s specific anti-theft system, you may need to perform a simple Security Relearn Procedure after installation, which can typically be done without special tools.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the original PCM (verified with codes like P0601 or P0606), then this 89017749 PCM replacement is the correct fix. It is crucial to properly diagnose the vehicle first to ensure the PCM is the root cause.
Where is this module located on my truck?
On most Silverado, Sierra, and other GM trucks from this era, the PCM is located in the engine bay on the driver’s side, typically under or near the battery tray. On Express and Savana vans, it is usually found in the LH rear of the engine compartment.
Do I need to return my old PCM?
No core charge or return is required for this part. You can keep or recycle your old module at your convenience.