Restore Peak Performance to Your 1997 GM Vehicle
Is your 1997 Oldsmobile Silhouette, Pontiac Grand Prix, or Chevy Lumina running rough, shifting erratically, or displaying a persistent Check Engine Light? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. This vital component manages everything from fuel injection and ignition timing to transmission shift points and emissions controls. When it falters, the entire driving experience suffers. This replacement PCM, part number 16217058, is the definitive solution to get your vehicle running reliably again.
Unlike generic modules that require expensive dealer programming, this unit arrives at your door fully programmed to your specific vehicle. We use your Vehicle Identification Number (VIN) to flash the module with the latest, most stable software updates directly from GM. This ensures perfect compatibility and optimal performance right out of the box, eliminating guesswork and costly trips to the dealership. It’s a true plug-and-play solution designed for a seamless installation process.
Diagnosing a Failing 1997 Silhouette Powertrain Control Module
A faulty PCM can manifest in a wide variety of symptoms that can often be mistaken for other mechanical or electrical issues. If your vehicle is experiencing several of the following problems, there’s a strong possibility that the powertrain control module is the root cause. This module is the central command for your engine and transmission, and its failure can have widespread effects.
Common Symptoms of PCM Failure
- ✔ Check Engine Light: The light may be on constantly or flash intermittently, often with codes related to sensors, emissions, or internal module errors.
- ✔ Poor Engine Performance: Noticeable loss of power, hesitation during acceleration, rough idling, or engine stumbling.
- ✔ Reduced Fuel Economy: A sudden and unexplained drop in your vehicle’s MPG is a common sign the PCM isn’t managing the fuel mixture correctly.
- ✔ Transmission Shifting Problems: Harsh shifting, delayed engagement into gear, or getting stuck in one gear (limp mode) can be caused by a faulty PCM.
- ✔ Engine Stalling or No-Start: The vehicle may stall for no reason while driving or refuse to start at all, even with a good battery and starter.
- ✔ Failed Emissions Test: Inability to pass a smog check is often directly linked to a malfunctioning PCM that cannot properly manage the emissions control systems.
- ✔ Communication Errors: A mechanic’s scan tool may be unable to communicate with the PCM, indicating a total failure of the unit.
Guaranteed Fitment for Your GM Vehicle
This powertrain control module is a direct replacement for original part numbers 16217058 and 16218070. It is designed to work perfectly with a wide range of 1997 General Motors cars and vans. Please verify your vehicle is on the list below to ensure compatibility.
- Buick Century 1997 (3.1L V6)
- Buick LeSabre 1997 (3.8L V6, w/o supercharger)
- Buick Regal 1997 (3.8L V6, w/o supercharger)
- Buick Skylark 1997 (3.1L V6)
- Chevrolet Lumina 1997 (3.1L V6)
- Chevrolet Monte Carlo 1997 (3.1L V6)
- Chevrolet Venture 1997 (3.4L V6)
- Oldsmobile Achieva 1997 (3.1L V6)
- Oldsmobile Cutlass 1997 (Supreme)
- Oldsmobile Eighty Eight 1997 (3.8L V6, w/o supercharger)
- Oldsmobile Silhouette 1997 (3.4L V6)
- Pontiac Bonneville 1997 (3.8L V6, w/o supercharger)
- Pontiac Grand Am 1997 (3.1L V6)
- Pontiac Grand Prix 1997 (3.1L V6 or 3.8L V6, w/o supercharger)
- Pontiac Trans Sport 1997 (3.4L V6)
Frequently Asked Questions
What is the difference between a PCM, ECM, and ECU?
The terms are often used interchangeably. ECM (Engine Control Module) typically only controls engine functions. ECU (Electronic Control Unit) is a generic term. PCM (Powertrain Control Module) is the most accurate term for this part, as it controls both the engine and the automatic transmission functions in your 1997 GM vehicle.
Is this module difficult to install?
Installation is straightforward for someone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then reversing the process with the new one. It’s usually located in the engine bay, often near the air filter box.
Do I need to do anything after installing the new PCM?
Because this module is pre-programmed to your VIN, no dealer visit is required. However, on many 1997 GM vehicles, you may need to perform a simple Security Relearn procedure (often called Passlock or VATS relearn) to allow the car to start. This procedure can be done in your driveway with just the ignition key and takes about 30 minutes. Instructions are widely available online.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program and ship your module until we receive this information. Please ensure it is accurate to avoid any compatibility issues.
Will this fix my Check Engine Light?
If the Check Engine Light is caused by a faulty PCM or a software issue that the latest GM update resolves, then yes, this will fix it. However, if the light is on due to a separate failed sensor or mechanical part (like an oxygen sensor or catalytic converter), you will still need to repair that underlying issue. This module will ensure the vehicle’s computer is operating perfectly.