Restore Peak Performance to Your GM Truck or Van
Is your Chevrolet, GMC, or Isuzu truck suffering from frustrating issues like a persistent check engine light, poor engine performance, stalling, or a no-start condition? The Powertrain Control Module (PCM), often called the Engine Control Module (ECM), is the central computer responsible for managing your vehicle’s engine, transmission, and emissions systems. When it fails, it can cause a wide range of confusing and debilitating problems. This replacement PCM is the reliable, cost-effective solution to get your vehicle running smoothly again.
This is a thoroughly tested, OEM-quality used module sourced from a salvaged vehicle. We program it specifically for your truck or van using your unique Vehicle Identification Number (VIN). This critical step ensures that the module has the correct software, calibrations, and security information for your exact model, engine, and options. By pre-programming the unit, we eliminate the need for an expensive trip to the dealership for flashing, saving you time and money.
Common Symptoms of a Faulty PCM
- ✔ Persistent Check Engine Light (CEL) with various, often unrelated, trouble codes.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Complete no-start or difficult hard-start conditions.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Failure to communicate with a diagnostic scan tool.
- ✔ Misfire codes that don’t resolve after replacing plugs, wires, or coils.
Your Plug-and-Play Solution: The GM PCM 9366810
Don’t let a faulty computer keep your reliable truck off the road. This GM PCM 9366810 is a direct replacement for a wide range of popular GM vehicles from the late 1990s. It is fully compatible with and replaces several original part numbers, including 09355699, 16266645, 16250279, and 16258815. Our process is simple: you provide your VIN during checkout, and our technicians flash the module with the latest GM software updates specific to your vehicle. The module arrives at your door ready for installation. In most cases, a simple security relearn procedure (which you can do yourself) is all that’s needed to finalize the installation.
Installation is Straightforward
Replacing the PCM is a job most DIY mechanics can handle. Always disconnect the negative battery terminal before you begin. The module is typically located in the engine compartment. Simply unplug the electrical connectors, unbolt the old module, and install the new one in its place. Reconnect the connectors, re-attach the battery terminal, and you’re ready for the final steps. This simple process can save you hundreds in labor costs.
Frequently Asked Questions
Why do you need my vehicle’s VIN?
Your VIN is essential for us to load the correct GM factory software onto the PCM. This includes calibrations for your specific engine, transmission, emissions equipment, and security system, ensuring a perfect match and proper vehicle operation.
Is this a simple plug-and-play part?
Yes, because we pre-program it, it is a plug-and-play installation. However, you will likely need to perform a security relearn procedure (also known as a CASE learn or anti-theft relearn) so the module can sync with your vehicle’s keys. This procedure is simple and can be done without special tools.
My original part number is 09355699. Will this part work?
Absolutely. This PCM, part number 9366810, is a direct replacement for several part numbers, including 09355699, 16266645, 16250279, and more. As long as your vehicle is on the fitment list and your part number is listed as compatible, this module will work correctly.
Is this a new computer?
No, this is a high-quality, tested used OEM part. We use original equipment modules because they have proven reliability and are guaranteed to be compatible with your vehicle’s systems, unlike many aftermarket alternatives.
How can I be sure the PCM is my problem?
While the symptoms listed are strong indicators of PCM failure, it’s crucial to perform a thorough diagnosis. We recommend checking all power and ground connections to the PCM and ruling out other potential causes like faulty sensors or wiring. This module is guaranteed to be a functional, correctly programmed part.