Is Your Buick or GM Vehicle Running Rough?
If your 1998 Buick Century, Grand Am, or another compatible GM vehicle is suffering from frustrating issues like a persistent check engine light, erratic shifting, a no-start condition, or poor fuel economy, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer for your engine and transmission, its health is critical for performance and reliability. Over my 20+ years in the shop, I’ve seen how a faulty PCM can mimic a dozen other problems, leading to wasted time and money on unnecessary parts.
Expert Pro Tip: Check Your Connectors First
Before condemning your old PCM, take a moment to inspect the electrical harness connectors. On these late-90s GM vehicles, the plastic can become brittle and the terminal pins can get corroded or loose, causing intermittent connection issues that look exactly like a failing module. A quick spray with electronics cleaner and ensuring a snug fit can sometimes solve the problem. If the connections are clean and tight and the issues persist, the module itself is the next logical step.
The Direct, Programmed Solution You Need
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take a quality-tested PCM, part number 16236757, and professionally program it to your vehicle’s specific Vehicle Identification Number (VIN). This process loads the latest, most stable software updates from General Motors, ensuring optimal performance and compatibility right out of the box. No expensive trips to the dealership for programming are required.
This Programmed PCM Directly Addresses Common Failure Symptoms:
- ✔ Unexplained Check Engine Light (CEL)
- ✔ Harsh or incorrect automatic transmission shifting
- ✔ Engine stalling, stumbling, or rough idling
- ✔ Complete no-start or no-spark conditions
- ✔ Communication errors with diagnostic scan tools
- ✔ Decreased power and poor gas mileage
Why Choose Our 1998 Century PCM?
Getting your car back to factory-spec operation is our priority. By programming the module for you, we eliminate the most common and costly hurdle in this repair. This unit is a direct replacement for a wide range of original equipment service numbers, ensuring broad compatibility and a perfect match for your vehicle’s system.
Compatible Service Numbers: 09356741, 16236757, 9357034, 9357440, 9366314
Simple, Plug-and-Play Installation
Once you receive your VIN-programmed module, the installation is straightforward for a DIYer or any professional mechanic.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On most of these vehicles, the PCM is located in the engine bay, often inside the air filter housing for protection.
- Disconnect and Remove: Carefully unplug the electrical harness connectors and unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new PCM into place and securely reconnect the harness connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal. The vehicle is now ready to start.
IMPORTANT: After you place your order, you must provide us with your 17-digit VIN. We cannot ship your part until we have this information to complete the programming process.
Guaranteed Fitment
This module is a confirmed fit for the following vehicles with the specified options. Please match your vehicle, year, and engine to the list below. If you have any questions, we’re here to help.
GRAND AM 98 Electronic Control Module; 6-191 (3.1L)
LESABRE 98 Electronic Control Module; (6-231, 3.8L)
CUTLASS 99 Electronic Control Module; (LH center dash), ID 16236757
PARK AVENUE 98 Electronic Control Module; (6-231, 3.8L)
VENTURE 98 Electronic Control Module; (6-207, 3.4L)
ALERO 99 Electronic Control Module; (LH center dash), 3.4L, ID 16236757
RIVIERA 98 Electronic Control Module; (6-231, 3.8L)
CENTURY 98 Electronic Control Module; (6-191, 3.1L)
SKYLARK 98 Electronic Control Module; 6-191 (3.1L)
GRAND PRIX 98 Electronic Control Module
ACHIEVA 98 Electronic Control Module; 6-191 (3.1L)
EIGHTY EIGHT 98 Electronic Control Module
SILHOUETTE 98 Electronic Control Module; (LH engine compartment)
FIREBIRD 98 Electronic Control Module; 6-231 (3.8L)
MALIBU 98 Electronic Control Module; 6-191 (3.1L)
INTRIGUE 98 Electronic Control Module
LUMINA CAR 98 Electronic Control Module; (LH engine compartment)
BONNEVILLE 98 Electronic Control Module
CAMARO 98 Electronic Control Module; 6-231 (3.8L)
MONTE CARLO 98 Electronic Control Module
REGAL 98 Electronic Control Module
TRANS SPORT 98 Electronic Control Module; (LH engine compartment)