Restore Peak Performance to Your GM Truck or SUV
Is your trusty Tahoe, Suburban, or Silverado suddenly running rough, stalling, or refusing to start? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and stressful issues. This isn’t just an inconvenience; it’s a blow to the reliability you depend on. This genuine OE engine computer, service number 9355699, is the definitive solution to get your workhorse back on the road, running strong and dependably. We take the guesswork out of the repair by programming the module to your vehicle’s specific VIN before it ever leaves our facility, ensuring a seamless integration and restoring factory performance.
Common Symptoms of a Failing PCM & Your Direct-Fit Solution
If you’re experiencing any of the following, a faulty engine computer is a likely cause. This Programmed 9355699 PCM is designed to correct these exact problems:
- No-Start or Hard-Start: The engine cranks but won’t fire up, or takes an excessively long time to start.
- Engine Stalling: The engine cuts out unexpectedly, either while driving or at idle.
- Rough Idle & Misfires: Shaking or sputtering, often accompanied by a flashing Check Engine Light.
- Poor Fuel Economy: A sudden and unexplained drop in your vehicle’s MPG.
- Failed Emissions Test: Inability to pass smog due to engine performance or communication errors.
- Check Engine Light (CEL): Persistent CEL with codes related to module communication (U-codes) or internal processor failure.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the unit with the latest GM software updates for your specific VIN. This ensures perfect communication between the engine, transmission, and all related systems for optimal performance.
- ✔ Genuine OE Part: This is a tested, original equipment computer from a salvaged vehicle, guaranteeing the factory fit, function, and durability your GM truck was built with.
- ✔ Cost-Effective Solution: Get a reliable, programmed module at a fraction of the cost of a new unit from the dealership, without sacrificing quality or performance.
- ✔ Direct Replacement: This unit is a direct replacement for multiple service numbers, including 09355699, 16266645, 16250279, 16258815, and 09366810.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty, giving you confidence and peace of mind in your repair.
Expert Insight: Why VIN Programming is Critical
On these late-90s GM Vortec platforms, the PCM is more than just an engine controller—it’s the central command for the entire powertrain. It manages not only fuel injection and ignition timing but also the 4L60E/4L80E transmission’s shift points and line pressure. A generic, unprogrammed module can cause harsh shifting, incorrect gear engagement, and poor engine performance. By programming this Programmed 9355699 PCM to your exact VIN, we ensure all the factory-calibrated parameters for your specific engine, transmission, and axle ratio are loaded correctly. This is the key to a successful, long-lasting repair that makes your truck drive like it’s supposed to.
Frequently Asked Questions
Is this part ready to install right out of the box?
Yes, this PCM comes programmed to your VIN and is ready for installation. However, on most GM vehicles of this era, you will need to perform a simple security relearn procedure after installation so the module can recognize your vehicle’s anti-theft system. This procedure typically takes 10-30 minutes and does not require a special scan tool.
How do I provide you with my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically find this on your vehicle’s registration, insurance card, or on a placard on the driver’s side dashboard visible through the windshield.
Will this fix my Check Engine Light?
If the Check Engine Light is on due to an internal failure of your original PCM, then this replacement unit will solve the problem. It is crucial to properly diagnose your vehicle, as the light could be on for other reasons, such as a faulty sensor or wiring issue. This Programmed 9355699 PCM will fix any issues directly caused by the computer itself.
Is this a new computer?
No, this is a high-quality, tested, and fully functional used computer sourced from a salvaged vehicle. Using a genuine OE unit ensures maximum compatibility and reliability compared to many aftermarket alternatives.
The part number on my old module is different. Will this still work?
Yes. GM often uses several interchangeable part numbers for the same computer. This unit, 9355699, is a direct replacement for part numbers 16266645, 16250279, 16258815, 09366810, and others. As long as your vehicle is on the compatibility list and we program it to your VIN, it will function correctly.