Is Your 1997 GM Vehicle Running Rough?
If your 1997 Buick Regal, Grand Prix, or another compatible GM vehicle is experiencing perplexing issues like stalling, erratic shifting, a persistent check engine light, or a complete no-start condition, 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 injection and ignition timing to transmission shift points and emissions controls. When it begins to fail, it can create a cascade of problems that are difficult to diagnose and can sideline your vehicle indefinitely.
From the Diagnostic Bay
We had a 1997 Buick LeSabre come into the shop that was giving its owner fits. It would start and run fine when cold, but after 15-20 minutes of driving, it would start to buck and surge, eventually stalling at stoplights. The owner had already replaced the spark plugs, wires, and even the fuel pump with no success. After hooking up our diagnostic scanner, we noticed erratic data from the crank sensor, but the sensor itself tested fine. This pointed us toward the PCM. The internal processors were overheating and failing, causing them to misinterpret sensor data. We installed a VIN-programmed PCM, and the car ran like new. It’s a classic example of how a failing computer can mimic the symptoms of multiple other parts.
Symptoms of a Failing 1997 Regal Powertrain Control Module
A faulty PCM can manifest in numerous ways. If you’re noticing any of the following issues, it’s time to consider a replacement. This module is the correct solution for a wide range of GM vehicles, ensuring you get the right part to restore proper function.
- ✔ Persistent Check Engine Light (CEL) illumination
- ✔ Engine stalling or shutting off while driving
- ✔ Difficulty starting the engine or a no-start condition
- ✔ Noticeable decrease in fuel economy
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Engine hesitation or misfiring under load
- ✔ Failure to pass state emissions testing
The Right Solution: VIN-Programmed for Your Vehicle
Don’t settle for a generic, off-the-shelf computer that requires expensive dealership programming. This Powertrain Control Module, part number 16217058, is the definitive solution for your vehicle. We take the guesswork out of the repair by programming the unit specifically for your car using the VIN you provide. This ensures that all factory settings, anti-theft system parameters, and engine/transmission calibrations are a perfect match. The module is loaded with the latest available GM software updates, which can resolve common drivability issues that were present even when the car was new.
This unit is a direct replacement for original part numbers 16217058 and 16218070 and is compatible with a wide array of 1997 GM models, including:
- Buick: Regal, Century, LeSabre, Skylark
- Chevrolet: Lumina, Monte Carlo
- Oldsmobile: Eighty Eight, Cutlass Supreme, Achieva, Silhouette
- Pontiac: Bonneville, Grand Prix, Grand Am, Trans Sport
- And the Chevrolet Venture
Please verify your vehicle’s engine (3.1L, 3.4L, or 3.8L non-supercharged) against the fitment list to ensure compatibility. Getting your vehicle back on the road is as simple as installing this pre-programmed module. In most cases, it is a plug-and-play installation, though some GM vehicles of this era may require a simple security relearn procedure that can be done without special tools.
Frequently Asked Questions
Do I need to have this module programmed?
No. We handle all the programming for you before shipment. Simply provide us with your vehicle’s 17-digit VIN during checkout or via message, and we will flash the module with the correct GM software for your specific vehicle. It will arrive ready to install.
Is this a difficult part to install?
For someone with basic mechanical skills, the installation is straightforward. The PCM is typically located in the engine bay, under the air filter box. It involves disconnecting the negative battery terminal, unplugging the electrical connectors, and unbolting the module. The process is reversed for installation. No special tools are typically required.
What is a security relearn procedure?
Some GM vehicles use a Pass-Key or Passlock anti-theft system that is tied to the PCM. After installing a new module, you may need to perform a simple relearn procedure so the system recognizes the new computer. This usually involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating the cycle three times. Instructions are readily available online for your specific model.
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 is crucial to ensure that the diagnostic trouble codes (DTCs) pointing to the PCM are not being caused by other failing sensors or wiring issues. We recommend a thorough diagnosis before ordering.
What information do you need from me?
The only thing we need is your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to access the correct GM calibration files and program the module perfectly for your car’s engine, transmission, and options.