Restore Peak Performance to Your GM Truck or Van
Is your GMC Safari, Chevy Express, or S10 pickup suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM) is often the hidden culprit behind a wide range of engine and transmission problems. As the central computer of your vehicle, the PCM governs everything from fuel mixture and ignition timing to transmission shift points and emissions controls. When it fails, the symptoms can be baffling. This direct-fit replacement PCM, part number 16263494, is the definitive solution to get your vehicle running reliably again.
Unlike generic modules that require expensive trips to the dealership for programming, this unit arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We install the latest GM-certified software updates, ensuring optimal performance, fuel efficiency, and emissions compliance. This eliminates compatibility guesswork and prepares the module for a straightforward installation.
Common Symptoms of a Failing PCM
- ✔ Check Engine Light is on with various trouble codes (DTCs).
- ✔ Engine stalls, stumbles, or runs rough.
- ✔ Unexplained drop in fuel economy (MPG).
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Vehicle fails to start or has intermittent starting issues.
- ✔ Failure to pass state emissions tests.
- ✔ Communication errors with diagnostic scan tools.
Why Choose a VIN-Programmed 1999-2001 GMC Safari PCM?
The key to a successful repair is ensuring the replacement module is a perfect match for your vehicle’s factory settings. The 1999-2001 GMC Safari PCM and its compatible family of GM vehicles have specific calibrations for engine size, transmission type, and emissions equipment. Our professional programming service uses your VIN to load the exact software your vehicle needs. This ensures all systems communicate correctly, restoring the smooth operation and efficiency you expect. This module is a direct replacement for part numbers 16263494, 16265035, 8162634940, 218-11787, and 21811787, covering a wide range of popular GM models.
The Simple Process
- ✔ Place Your Order: Add this module to your cart and complete the purchase.
- ✔ Provide Your VIN: Reply to your order confirmation email with your vehicle’s 17-digit VIN.
Frequently Asked Questions
Do I need to have this PCM programmed?
No, you don’t! The main benefit of our service is that we handle all the programming for you before we ship the part. Just provide your VIN after purchase, and it will arrive ready for installation.
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls all aspects of the engine and transmission to ensure optimal performance, fuel economy, and emissions. It’s often called the ‘brain’ of the vehicle.
Where do I find my vehicle’s VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a metal plate on the driver’s side of the dashboard, visible through the windshield.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, then yes, this part will resolve the issue. However, it’s always best to have your vehicle scanned for diagnostic trouble codes (DTCs) to confirm the source of the problem before ordering.
What is a CASE relearn?
A Crankshaft Position System Variation (CASE) relearn is a procedure that allows the new PCM to learn the specific position of the crankshaft reluctor wheel. This is sometimes required after a PCM replacement to prevent a P1336 trouble code. Many repair shops can perform this procedure quickly.
Is this part difficult to install?
For most DIY mechanics, the installation is straightforward. It typically involves disconnecting the vehicle’s battery, unplugging the electrical connectors from the old module, unbolting it, and then reversing the process with the new one. The location varies by model but is generally accessible in the engine bay.