Is Your GM Truck or SUV Running Rough? Restore Its Brainpower.
If you’re dealing with a persistent check engine light, erratic engine behavior, poor fuel mileage, or transmission shifting problems in your Oldsmobile Bravada, Chevrolet truck, or GMC van, the root cause is often a failing Powertrain Control Module (PCM). As the central computer of your vehicle, the PCM is responsible for managing everything from fuel mixture and ignition timing to transmission shift points. When it starts to fail, it can cause a cascade of frustrating and difficult-to-diagnose issues. This direct-fit replacement PCM, service number 16263494, is the definitive solution to restore your vehicle’s performance and reliability.
From the Diagnostic Bay
I remember a customer with a ’99 Chevy S10 4.3L who was at his wit’s end. He had replaced the spark plugs, wires, distributor cap, rotor, and even the fuel pump chasing a random misfire and stalling issue. The codes were all over the place. After checking all the basics, we hooked up a scope to the injector drivers and saw the signal from the PCM was erratic. We installed a VIN-programmed module, and the truck immediately ran like it just rolled off the assembly line. He had spent hundreds on parts he didn’t need when the core issue was the computer itself. A failing PCM can mimic many other component failures, making it a tricky diagnosis for the DIY mechanic.
Why Choose Our Programmed 1998-2000 Bravada PCM?
Don’t settle for a generic, unprogrammed module that will require an expensive trip to the dealership. We take the guesswork and extra cost out of the equation. When you purchase from us, you provide your vehicle’s VIN, and our technicians will program the module with the latest GM-certified software updates specific to your vehicle. This ensures optimal performance, fuel efficiency, and seamless communication with all other onboard systems. It’s a true plug-and-play solution designed to get you back on the road quickly and confidently. This module is a direct replacement for multiple part numbers, including 16263494, 16265035, and 8162634940.
Common Symptoms of a Failing PCM
- ✔️ Persistent Check Engine Light (CEL) illumination
- ✔️ Engine stalling or rough, inconsistent idling
- ✔️ A noticeable decrease in fuel economy
- ✔️ Harsh, delayed, or incorrect automatic transmission shifts
- ✔️ Vehicle fails to start or has intermittent starting issues
- ✔️ Failed emissions or smog test
- ✔️ Communication error codes with a diagnostic scan tool
This Powertrain Control Module is compatible with a wide range of popular General Motors vehicles from the late 1990s and early 2000s, including the Chevrolet Silverado, GMC Sierra, Chevy Express, GMC Savana, S10/Sonoma, Blazer/Jimmy, and many more. Please verify the part number 16263494 or check the detailed fitment list to ensure this is the correct component for your truck, van, or SUV.
Frequently Asked Questions
Do I need to get this PCM programmed?
No. This module comes fully programmed to your vehicle’s specific VIN before it ships. Simply provide us with your VIN at checkout, and we handle the rest, ensuring it’s ready for installation right out of the box.
What does the Powertrain Control Module do?
The PCM is the main computer that controls the engine and transmission systems. It reads data from various sensors to manage fuel injection, spark timing, emissions systems, and automatic transmission shifting to ensure the vehicle runs efficiently and smoothly.
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 recommended to have the codes read by a diagnostic scanner to confirm the source of the problem before ordering.
Is any special procedure required after installation?
In many cases, this is a plug-and-play installation. However, some GM vehicles of this era may require a security relearn procedure (such as for the Passlock system) or a Crankshaft Variation (CASE) relearn to be performed. These procedures can often be done without special tools and instructions are widely available.
How can I be sure this fits my vehicle?
The best way is to match the service number on your original module to one of the compatible numbers listed (16263494, 16265035, etc.). You can also use the detailed fitment chart on this page to confirm compatibility with your vehicle’s year, make, model, and engine.