Is Your GM Truck Running Out of Steam?
There’s nothing more frustrating than when your dependable GM truck, van, or SUV starts acting up. If you’re dealing with a persistent check engine light, rough idling, stalling, or poor fuel economy, a failing Powertrain Control Module (PCM) is often the culprit. Ignoring these signs can lead to more significant engine or transmission issues down the road. It’s time to stop the guesswork and get your vehicle back to the reliable workhorse you depend on.
Common Symptoms of a Failing GM PCM & Your Solution
A faulty engine computer can cause a wide range of confusing problems. You might be experiencing one or more of the following:
- Check Engine Light: Are you seeing codes like P0601, P0605, or other internal controller errors?
- No-Start or Hard-Start: The engine cranks but refuses to start, or only starts after multiple attempts.
- Poor Performance: Noticeable loss of power, hesitation during acceleration, and decreased gas mileage.
- Erratic Shifting: The transmission may shift harshly, late, or not at all.
- Failed Emissions Test: An inability to pass smog or emissions testing is a classic sign of a PCM issue.
This fully tested, genuine OEM unit is the definitive solution. We take the hassle out of the repair by pre-programming it specifically for your vehicle using your VIN. This means the Programmed 9355699 PCM you receive is ready to install right out of the box, restoring your vehicle’s factory performance and reliability.
Features & Benefits
- ✔ VIN-Specific Programming: We flash this computer with the latest GM software updates matched directly to your vehicle’s VIN. This ensures perfect compatibility with your engine, transmission, and options.
- ✔ Ready for Installation: No need for an expensive trip to the dealership. This module arrives ready to be installed, saving you time and money. A simple security relearn procedure may be required after installation.
- ✔ Cost-Effective Solution: Get the reliability of an original factory part without the high cost of a new unit. This is a smart, effective repair for your trusted vehicle.
- ✔ Solves Common Running Issues: Directly addresses drivability problems caused by a faulty original computer, restoring smooth operation and engine performance.
- ✔ This unit is backed by our one-year replacement warranty for your peace of mind.
A Mechanic’s Note: The Critical Role of VIN Programming
On these late ’90s GM vehicles, the PCM is more than just an engine controller; it’s the central hub that talks to everything from the transmission to the anti-theft system (Passlock). Simply swapping a computer from another truck won’t work—the vehicle won’t start or will run terribly. Our VIN programming service isn’t just a convenience; it’s essential. We ensure the software on your replacement Programmed 9355699 PCM is a perfect digital match for your truck’s original build sheet, making the installation process smooth and successful.
Frequently Asked Questions
What information do you need from me?
After you place your order, we will need the Vehicle Identification Number (VIN) from your truck or SUV. This is essential for us to program the computer correctly for your specific vehicle configuration.
Is this a new computer?
No, this is a thoroughly tested, used OEM (Original Equipment Manufacturer) computer that has been sourced from a salvaged vehicle. We guarantee its function and program it to be a direct replacement for your original part.
Will I need to do any additional programming?
No. The module arrives fully programmed for all engine and transmission functions. However, on many of these GM vehicles, you will need to perform a simple security relearn procedure after installation, which syncs the new computer with your vehicle’s anti-theft system. This procedure typically takes 10-30 minutes and does not require any special tools.
How do I find my original part number?
Your vehicle’s original part number is printed on a sticker on the PCM itself. While this unit replaces multiple part numbers, confirming your original helps ensure a perfect match. This Programmed 9355699 PCM is a direct replacement for all part numbers listed in the description.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of your original PCM (common codes include P0601-P0606), then this replacement unit is the correct fix. It is always important to properly diagnose your vehicle to ensure the PCM is the root cause of the problem.