Restore Peak Performance to Your GM Vehicle
Is your 1998 Buick Century, Grand Prix, or another compatible GM vehicle suffering from erratic behavior? Issues like poor fuel economy, harsh transmission shifting, a persistent check engine light, or even a no-start condition can often be traced back to a failing Powertrain Control Module (PCM). As the central computer for your engine and transmission, a faulty PCM can create a cascade of frustrating and difficult-to-diagnose problems. This replacement Powertrain Control Module, service number 9356741, is the definitive solution to restore your vehicle’s reliability and drivability.
Unlike sourcing a part from a salvage yard, which comes with an unknown history and requires expensive dealership programming, our modules are meticulously tested and programmed specifically for your vehicle. When you place your order, you provide us with your Vehicle Identification Number (VIN). Our technicians then flash the module with the latest, most stable GM-certified software updates for your exact make, model, and engine configuration. This ensures optimal performance, fuel efficiency, and emissions control, right out of the box.
Common Symptoms of a Failing 1998 Century PCM
If you’re experiencing any of the following issues, a failing PCM could be the culprit. While these symptoms can also be caused by other faulty components, a bad module is a common root cause, especially when multiple symptoms appear simultaneously.
- ✔ Check Engine Light is on with various or no communication codes (U-codes).
- ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
- ✔ Unexplained drop in fuel mileage.
- ✔ Automatic transmission shifts harshly, at the wrong times, or not at all.
- ✔ The vehicle cranks but refuses to start.
- ✔ Intermittent loss of power or hesitation during acceleration.
- ✔ Failure to pass an emissions test.
From the Diagnostic Bay
We once had a 1998 Buick LeSabre come into the shop with a classic ‘parts cannon’ story. The owner had replaced the spark plugs, wires, ignition coils, and even the mass airflow sensor trying to chase down a random misfire and stalling issue. The codes were inconsistent, and nothing seemed to fix it. After confirming all sensor inputs were good, we hooked up a scope to the injector driver circuits at the PCM. We found the signal for cylinder 3 was dropping out intermittently. The wiring was perfect. The problem was internal to the PCM itself. A new, programmed module like this one had the car running perfectly in under an hour, saving the customer from further guesswork and expense.
A Simple, Programmed Solution
The process is designed to be as straightforward as possible. You order the part, provide your VIN during or after checkout, and we handle the complex programming. The module arrives at your door ready for installation. In most cases, this is a direct bolt-in replacement. After installation, you may need to perform a simple security relearn procedure (often called a CASE learn or anti-theft relearn), which can typically be done in your driveway without special tools. This synchronizes the new PCM with your vehicle’s existing security system. This one-time purchase eliminates the need for a tow to the dealership and saves you hundreds of dollars in programming fees.
This module is a direct replacement for a wide range of service numbers, including 09356741, 16236757, 9357034, 9357440, and 9366314. Our VIN-based programming ensures that no matter which of these original part numbers your vehicle had, this unit will function as a perfect replacement, loaded with the correct software for your specific application.
Guaranteed Fitment for Your Vehicle
This 1998 Century PCM is also confirmed to fit a wide array of other GM vehicles from that era, making it a versatile and reliable solution. Please verify your vehicle is on the list below. Our programming process tailors the software to your specific model.
- 1998-1999 Oldsmobile Cutlass
- 1998-1999 Pontiac Grand Am (3.1L, 3.4L)
- 1998 Buick LeSabre (3.8L)
- 1998 Buick Park Avenue (3.8L)
- 1998 Chevrolet Venture (3.4L)
- 1999 Oldsmobile Alero (3.4L)
- 1998 Buick Riviera (3.8L)
- 1998 Buick Skylark (3.1L)
- 1998 Pontiac Grand Prix
- 1998 Oldsmobile Achieva (3.1L)
- 1998 Oldsmobile Eighty Eight
- 1998 Oldsmobile Silhouette
- 1998 Pontiac Firebird (3.8L)
- 1998 Chevrolet Malibu (3.1L)
- 1998 Oldsmobile Intrigue
- 1998 Chevrolet Lumina
- 1998 Pontiac Bonneville
- 1998 Chevrolet Camaro (3.8L)
- 1998 Chevrolet Monte Carlo
- 1998 Buick Regal
- 1998 Pontiac Trans Sport
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. We program the module for you using the VIN you provide before we ship it. It arrives ready for installation, saving you time and money.
What is a VIN and where do I find it?
The VIN is your vehicle’s unique 17-digit identification number. You can find it on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard, visible through the windshield.
Is this installation difficult?
For most DIY mechanics, the installation is straightforward. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module to swap in the new one. A security relearn procedure may be required afterward, which can usually be done without special tools.
Will this fix my check engine light?
If the check engine light and associated trouble codes are being caused by a faulty PCM, then this replacement part will solve the issue. It’s crucial to properly diagnose the problem before ordering to ensure the PCM is the root cause.
My original part number is slightly different but on your list. Will this work?
Yes. The part numbers listed (e.g., 16236757, 9357034) are interchangeable service numbers used by GM. Our VIN-based programming ensures this module will have the correct software and function perfectly for your vehicle, regardless of which of those numbers was originally installed.