Is Your GM Truck or Van Running Rough?
If you’re dealing with a persistent Check Engine Light, erratic engine behavior, stalling, or poor fuel economy, the brain of your vehicle—the Powertrain Control Module (PCM)—is often the culprit. A failing PCM can turn your reliable workhorse into a constant headache. This isn’t just an inconvenience; it’s a critical failure that affects performance, emissions, and safety. This is the definitive, hassle-free solution to get your vehicle back in top form. We provide a fully tested, genuine specification Programmed 1999 2000 Escalade PCM, flashed with the latest GM software updates specifically for your vehicle’s VIN.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, leaving you chasing problems that aren’t there. If you’re experiencing any of the following, this module is your answer:
- Check Engine Light (CEL) with Codes: Especially for internal module failure, such as P0601, P0602, P0604, P0605, or P0606.
- Engine Performance Issues: Stalling, rough idling, hesitation during acceleration, or a noticeable loss of power.
- Poor Fuel Economy: The engine isn’t receiving the correct data for an efficient air-fuel mixture.
- Transmission Shifting Problems: Harsh shifts, delayed engagement, or getting stuck in gear, as the PCM also controls transmission functions.
- No-Start Condition: The module fails to fire the ignition coils or activate the fuel injectors.
Replacing the unit with our professionally programmed PCM resolves these issues at their source, restoring the crisp performance and steadfast reliability you depend on.
Features & Real-World Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with your specific Vehicle Identification Number before it ships. This means no expensive trip to the dealership for programming—it’s ready for installation right out of the box.
- ✔ Loaded with Latest GM Updates: Your module arrives with the most current factory software, often correcting drivability issues and improving efficiency beyond what your original unit offered.
- ✔ Direct-Fit Replacement Guarantee: Engineered to be an exact match for the original, ensuring a perfect fit and seamless connection with your existing wiring harness. This is the correct module for part numbers like 16263494 and 21811787.
- ✔ Rigorously Inspected and Verified: Every module undergoes a thorough inspection and data verification process to ensure it functions flawlessly and provides years of dependable service.
- ✔ Plug & Play Installation: After a straightforward installation and a simple security relearn procedure (instructions available online), your vehicle is ready to go. You’ll be back on the road in no time.
From the Technician’s Bench: A common mistake we see is grabbing a used PCM from a salvage yard. While it might look identical, it’s a paperweight without the correct programming. It contains the VIN and security information from the donor vehicle and will prevent your truck from starting. Our service eliminates that critical, often overlooked step. We ensure the “brain” we send you is not only healthy but also perfectly matched to your vehicle’s identity, saving you from a frustrating no-start situation and wasted time.
Don’t let a faulty computer keep your truck or van sidelined. By ordering our Programmed 1999 2000 Escalade PCM, you are choosing a reliable, cost-effective solution that restores your vehicle’s core functionality and gives you peace of mind on the road. We take care of the complex programming so you can focus on the simple installation.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is the central computer that controls all aspects of your vehicle’s engine and transmission. It manages fuel injection, ignition timing, emissions systems, and automatic transmission shift points to ensure optimal performance, fuel efficiency, and low emissions.
Do I need to do anything after installation?
Yes. After installing the module and connecting the battery, you will need to perform a security relearn procedure, also known as a VATS or Passlock relearn. This simple procedure syncs the new PCM with your vehicle’s anti-theft system and typically involves turning the key on and off in a specific sequence. Instructions are widely available online for your specific model.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it. You can find your VIN on your vehicle’s dashboard (visible through the windshield) or on your registration and insurance documents.
Is this a new part?
This is a genuine-specification GM module that has been thoroughly tested and verified to meet or exceed original factory standards. It is prepared with the latest software and is ready for service.
Will this fix my transmission problems?
In many cases, yes. The PCM controls the electronic solenoids that manage shifting in automatic transmissions. If your shifting problems are electronic in nature (and not caused by an internal mechanical failure), a new Programmed 1999 2000 Escalade PCM is very often the correct fix.
What if my original part number is slightly different?
This module is a direct replacement for several GM part numbers, including 16263494, 16265035, and 8162634940. As long as your vehicle is listed in our compatibility chart, this module will function correctly once programmed to your VIN.
