Restore Peak Performance to Your GM Truck or SUV
Is your 1999-2000 Cadillac Escalade, Chevrolet Silverado, or GMC Sierra running rough, shifting erratically, or displaying a persistent Check Engine Light? These are classic signs of a failing Powertrain Control Module (PCM). As the central computer for your vehicle, the PCM manages everything from fuel injection and ignition timing to transmission shift points and emissions controls. When it falters, the entire vehicle’s performance and reliability are compromised. This replacement PCM, part number 218-11787, is the definitive solution to restore your vehicle’s factory operation and drivability.
From the Diagnostic Bay
We had a 2000 GMC Yukon Denali come in with a stubborn P0303 (Cylinder 3 Misfire) code. The owner had already replaced the spark plug, wire, cap, and rotor, but the misfire persisted. Using a noid light, we checked the injector pulse and found it was weak and inconsistent on cylinder 3. This immediately pointed us away from the mechanical parts and toward the electronics. A quick check of the wiring confirmed the issue was internal to the PCM; the injector driver for that cylinder was failing. Swapping in a correctly programmed PCM like this one solved the problem instantly. It’s a reminder that not all misfires are ignition-related; the PCM is often the hidden culprit.
Is Your Vehicle Exhibiting These Symptoms?
A failing PCM can cause a wide array of confusing and frustrating issues. If you’re experiencing any of the following, a faulty module is the likely cause:
- ✔ Unexplained Check Engine Light illumination
- ✔ Rough or unstable idling
- ✔ Poor fuel economy
- ✔ Hesitation or stumbling during acceleration
- ✔ Harsh or incorrect automatic transmission shifting
- ✔ Engine stalling or failure to start
- ✔ Communication errors with diagnostic scan tools
- ✔ False sensor codes being stored in memory
The Plug-and-Play Solution for Your 1999-2000 Escalade PCM
Don’t settle for a generic, unprogrammed module that requires expensive dealership visits. We take the guesswork and hassle out of the repair. When you purchase this 1999-2000 Escalade PCM, we flash it with the latest official GM software updates specifically for your vehicle. All you need to do is provide us with your Vehicle Identification Number (VIN) during checkout. This ensures that the module arrives at your door ready for installation, with all the correct parameters for your engine, transmission, and emissions equipment. This process guarantees seamless integration and optimal performance right out of the box.
This module is a direct replacement for multiple OEM part numbers, including 16263494, 16265035, and 8162634940, ensuring broad compatibility across a wide range of GM trucks, vans, and SUVs from the late 90s and early 2000s. Please verify the part number on your original module or consult the detailed fitment list to confirm compatibility.
Frequently Asked Questions
Do I need to do any programming after I receive this PCM?
No. We program the module to your vehicle’s specific VIN before shipping. It arrives ready for installation. In some cases, a security relearn procedure or a Crankshaft Variation (CASE) relearn may be necessary, which can be done with a capable scan tool or by following a simple vehicle-specific procedure.
Where do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is essential for the part to function.
Is this a new or used part?
This is a high-quality, tested replacement part that has been meticulously inspected and prepared to meet or exceed original equipment specifications. It is loaded with fresh, vehicle-specific software from GM.
What tools are needed for installation?
Installation is typically straightforward, requiring basic hand tools like a socket set to remove the mounting brackets and disconnect the electrical connectors. Always disconnect the vehicle’s battery before starting the installation to prevent electrical damage.
Will this fix my specific problem?
This PCM will resolve issues directly caused by a faulty module. While the symptoms listed are common indicators of PCM failure, it’s crucial to ensure your vehicle has been properly diagnosed. Check wiring, grounds, and sensors to rule out other potential causes before replacing the PCM.