Restore Your Vehicle’s Brain and Get Back on the Road
Is your Buick, Pontiac, or Oldsmobile suffering from baffling electrical gremlins? Erratic shifting, a persistent check engine light, stalling, or a no-start condition can often be traced back to a failing Powertrain Control Module (PCM). This isn’t just an inconvenience; it’s a critical failure that compromises your car’s performance, fuel economy, and reliability. This replacement PCM is the definitive, hassle-free solution to restore your vehicle’s core functions and your confidence behind the wheel. We take the guesswork out of the repair by programming this module specifically to your vehicle’s VIN before it ever leaves our facility.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, this pre-programmed module is your answer:
- Unexplained Check Engine Light (CEL) with communication codes (U-codes)
- Poor or harsh automatic transmission shifting
- Engine stalling, stumbling, or rough idling
- Complete no-start condition where the engine cranks but won’t fire
- Noticeable decrease in fuel efficiency
- Inaccurate or non-functioning dashboard gauges
By installing our expertly programmed 1998 Buick Riviera PCM 09356741, you are directly addressing the root cause of these issues, providing a stable and reliable command center for your vehicle’s powertrain.
Features That Deliver Real-World Benefits
- โ Plug & Play Installation: This module arrives pre-programmed to your vehicle’s unique VIN. This critical step eliminates the need for expensive dealership programming or specialized scan tools.
- โ Updated GM Software: We flash each unit with the newest updates from General Motors, ensuring your vehicle benefits from the latest performance and drivability improvements.
- โ Guaranteed Compatibility: By matching the software to your VIN, we ensure this PCM works seamlessly with your vehicle’s specific options and systems, just like the original.
- โ Rigorously Inspected Hardware: Each module undergoes a thorough inspection and testing process to ensure it meets strict quality standards for long-term reliability.
- โ One-Year Warranty Protection: This unit is backed by our one-year replacement warranty, giving you complete peace of mind with your purchase.
An Expert’s Note on Diagnosis
As a technician, I’ve seen countless hours and dollars wasted chasing what appears to be a transmission problem or a faulty sensor. A failing PCM can send incorrect signals, causing the transmission to shift hard or erratically. The owner replaces sensors or even the entire transmission, only to find the problem persists. The real culprit was the PCM all along. This VIN-programmed 1998 Buick Riviera PCM 09356741 solves the problem at its source, saving you from costly and frustrating misdiagnoses.
Don’t let a faulty computer keep your trusted car off the road. This is your opportunity to perform a professional-level repair with the simplicity of a direct-fit part. Restore the smooth, reliable performance you depend on. The fitment list for this 1998 Buick Riviera PCM 09356741 is extensive, covering a wide range of popular GM models from the era. Please verify your vehicle is on the list to ensure proper compatibility.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, simply reply to your order confirmation email with your 17-digit Vehicle Identification Number (VIN). You can also add it as a note during checkout. We cannot ship your part until we receive the VIN.
Will I need to do anything after installation?
In most cases, you will need to perform a security relearn procedure (often called a CASE relearn or Passlock relearn). This is a simple process that can typically be done without special tools and involves a sequence of key turns. Instructions are widely available online for your specific model.
Is this a brand new part?
This is a high-quality, fully tested replacement electronic control module. Each unit is inspected and programmed to meet or exceed original factory specifications, providing a reliable and cost-effective alternative to a new dealership part.
My original part number is different, will this still work?
Yes. This module replaces several different GM service numbers, including 16236757, 9357034, and others. As long as your vehicle’s year, make, and model are on the compatibility list, we program the module with your VIN to ensure it functions perfectly as a direct replacement.
Will this fix my transmission shifting issues?
If the PCM is the cause of the poor shifting, then yes, this part will resolve the problem. The PCM controls transmission line pressure and shift points. However, it’s important to rule out mechanical issues or faulty solenoids within the transmission itself before replacing the computer.