Restore Peak Performance to Your 1998 Buick Riviera
Is your vehicle suffering from a persistent Check Engine Light, erratic shifting, poor fuel economy, or a frustrating no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep you off the road. This direct-fit replacement PCM, part number 9356741, is the reliable solution to restore your vehicle’s drivability, efficiency, and performance.
This isn’t just a generic, off-the-shelf part. We take the guesswork out of the repair by professionally programming this module specifically for your vehicle using your unique Vehicle Identification Number (VIN). This critical step ensures that the PCM has the correct factory software and the latest updates from GM, making for a seamless installation process. By matching the software to your VIN, we ensure all vehicle-specific parameters—like engine size, transmission type, and emissions equipment—are correctly configured right out of the box.
Your Solution for a Reliable 1998 Riviera Powertrain Control Module
The PCM is one of the most critical components in your vehicle, managing everything from fuel injection and ignition timing to transmission shift points and emissions controls. When it fails, the symptoms can be widespread and confusing. Replacing it with a properly programmed unit is essential for a lasting repair. Our process is simple: after your purchase, you provide us with your vehicle’s VIN, and our technicians handle the complex programming. The module you receive is ready to be installed, minimizing vehicle downtime and eliminating the need for an expensive trip to the dealership for programming.
Common Symptoms of a Failing GM PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, stumbling, or misfiring.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ A noticeable decrease in fuel economy.
- ✔ The engine cranks but will not start.
- ✔ Failure to communicate with a diagnostic scan tool.
- ✔ Intermittent issues that worsen as the vehicle warms up.
Broad Compatibility Across the GM Lineup
While this is a perfect solution for a 1998 Riviera Powertrain Control Module, its versatile design was used by GM across a wide range of popular vehicles from the late 1990s. This module is a direct replacement for service numbers 09356741, 16236757, 9357034, 9357440, and 9366314. It is compatible with models such as the Pontiac Grand Prix, Chevrolet Monte Carlo, Oldsmobile Intrigue, and many others equipped with the 3.1L, 3.4L, or 3.8L V6 engines. Please verify your part number and check the detailed fitment list to ensure compatibility with your specific year, make, and model.
Frequently Asked Questions
Do I need to get this module programmed?
No. The main benefit of our service is that we program the module for you before it ships. Simply provide us with your vehicle’s VIN after purchase, and it will arrive with the correct GM software installed, ready for installation.
Where is the PCM located on my vehicle?
On most GM vehicles from this era, such as the Buick Riviera, LeSabre, and Pontiac Grand Prix, the PCM is typically located inside the factory airbox in the engine compartment. This protects it from the elements but allows for easy access by removing the air filter cover.
Will I need to perform any other procedures after installation?
In many cases, you may need to perform a security relearn procedure to sync the new PCM with your vehicle’s anti-theft system. This is a simple process that typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. Some vehicles may also require a Crankshaft Position Sensor (CASE) relearn, which requires a capable scan tool to complete.
How do I find my vehicle’s VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, or on the driver’s side of the dashboard, visible through the windshield. It is also located on the driver’s side door jamb sticker.
Is this a direct replacement for my original part?
Yes, this unit is a direct-fit replacement for the original equipment module and is compatible with all the service numbers listed, including 09356741 and 16236757. It meets or exceeds all original factory specifications.