Is Your Truck Running Rough? Get Back on the Road with Confidence.
Is your trusty GMC or Chevy truck giving you headaches? Unexplained stalling, rough idling, a lit Check Engine Light, or a complete failure to start can bring your work or family plans to a screeching halt. These are classic signs of a failing Powertrain Control Module (PCM), the computer that acts as the brain of your engine. Don’t let a faulty computer keep your reliable vehicle sidelined. This fully programmed PCM is the straightforward, dependable solution to restore your truck’s performance and get you back to work.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing engine computer is the likely culprit:
- Vehicle won’t start or is very difficult to start
- Check Engine Light is on with communication-related trouble codes (e.g., P0600, P0605)
- Erratic or harsh automatic transmission shifting
- Poor engine performance and reduced fuel economy
- Engine stalling or cutting out unexpectedly
This unit is the definitive fix for these problems. We take a reliable, tested computer and flash it with the latest official GM software updates specifically for your vehicle. By providing your Vehicle Identification Number (VIN) after purchase, you receive a module that is 100% plug-and-play, eliminating the need for an expensive trip to the dealership. This is the most efficient way to solve the problem correctly the first time. The 1999 GMC 2500 PCM 9366810 is your path to a smooth-running engine.
Features & Benefits
- ✔ VIN-Programmed for Your Truck: This module arrives at your door programmed to your specific VIN. It’s ready for a direct, simple installation with no further programming required.
- ✔ Updated GM Software: We flash the unit with the newest calibrations from General Motors, ensuring optimal engine performance, fuel efficiency, and transmission function.
- ✔ Smart, Cost-Effective Repair: Get a dependable solution without the high price tag of a new dealership part. This is a practical fix for a practical vehicle.
- ✔ Tested & Verified Functionality: Sourced from a salvaged vehicle, each computer is thoroughly inspected and tested to ensure it’s ready for service in your truck.
- ✔ Broad Compatibility: This PCM is a direct replacement for multiple part numbers (including 09355699, 16266645, and more), fitting a wide range of popular 1998-1999 GM trucks, vans, and SUVs.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty, so you can make your purchase with confidence.
A Technician’s Insight: As a technician with over 20 years of experience, I’ve seen countless hours and dollars wasted chasing electrical ghosts. A faulty PCM can mimic a bad fuel pump, a failed sensor, or even a transmission issue. Drivers often replace multiple expensive parts only to find the root cause was the computer all along. This pre-programmed 1999 GMC 2500 PCM 9366810 eliminates the guesswork and gets straight to the heart of the problem, saving you from a frustrating and costly parts-swapping nightmare.
Frequently Asked Questions
Do I need to do any programming myself?
No. This PCM is delivered to you fully programmed for your vehicle using the VIN you provide. It is a plug-and-play solution. In some cases, you may need to perform a simple security relearn procedure, which can be done without special tools and instructions are readily available online.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your 17-digit VIN. We cannot program and ship the computer without it. Your VIN is typically found on your driver’s side dashboard (visible through the windshield) or on the driver’s door jamb sticker.
Is this a new part?
No, this is a used, original equipment (OEM) computer that was sourced from a salvaged vehicle. We ensure its quality and functionality before programming it with the latest updates for your vehicle.
What if my original part number doesn’t match 9366810 exactly?
This computer is a direct replacement for several part numbers, including 09355699, 16266645, 16250279, and others listed in the description. As long as your vehicle is listed in the compatibility chart, this programmed unit will work perfectly.
Why is a programmed PCM a better choice?
An unprogrammed computer from a junkyard won’t work in your vehicle due to different software and security settings. A dealership will charge a premium for the part plus several hundred dollars for programming. Our service combines a reliable part with professional programming, giving you a ready-to-install solution that saves you significant time and money.