Restore Peak Performance to Your 1997 GM Vehicle
Is your 1997 Pontiac Bonneville, Regal, Grand Prix, or another GM vehicle suffering from frustrating issues like a persistent check engine light, erratic shifting, poor fuel economy, or a no-start condition? These are classic symptoms 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-replacement PCM, part number 16217058, is the reliable, cost-effective solution you need to restore your vehicle’s engine and transmission performance.
The biggest challenge with replacing a PCM is the need for expensive and time-consuming dealership programming. We eliminate that hassle completely. When you order from us, we flash the module with the latest official GM software updates specifically for your vehicle’s VIN. This means it arrives at your door ready for a straightforward installation. Simply plug it in, and you’re ready to go. This service not only saves you money but also ensures your vehicle benefits from the most current calibrations, often resolving issues the original software didn’t address.
From the Diagnostic Bay
I once had a 1997 Buick LeSabre come in with a transmission that was shifting hard and erratically, especially from first to second gear. The owner had already spent hundreds replacing the transmission solenoids and fluid based on a generic code, but the problem persisted. After hooking up our scanner and digging into the live data, we saw the PCM was sending delayed and incorrect signals to the transmission. We installed a VIN-programmed PCM just like this one, and the car shifted like it just rolled off the factory floor. It’s a powerful reminder that what seems like a major mechanical failure can often be traced back to the vehicle’s central computer.
Common Symptoms of a Failing 1997 Bonneville PCM
- ✔ Persistent Check Engine Light (CEL) illuminated on your dash.
- ✔ Engine stalling, stumbling, or running rough at idle.
- ✔ Noticeable decrease in fuel mileage.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle cranks but refuses to start (no-start condition).
- ✔ Failure to pass state emissions testing.
- ✔ Communication errors with diagnostic scan tools.
A True Plug-and-Play Solution
This isn’t just a part; it’s a complete service. Our process is designed to be as simple as possible. After you place your order, you provide us with your vehicle’s 17-digit VIN. Our technicians then use that information to load the correct, updated software onto the module. This ensures perfect compatibility with your vehicle’s engine, transmission, and factory options. The 1997 Bonneville PCM you receive will be a direct fit, ready to resolve the complex issues caused by a failing original unit.
Wide Compatibility Across the GM Lineup
This versatile module, also interchangeable with part number 16218070, is the correct fit for a wide range of popular 1997 GM models. Please verify your vehicle is on the list below:
- Achieva: 1997 (3.1L V6)
- Bonneville: 1997 (3.8L V6, w/o supercharger)
- Century: 1997 (3.1L V6)
- Cutlass: 1997 (Supreme)
- Eighty Eight: 1997 (3.8L V6, w/o supercharger)
- Grand Am: 1997 (3.1L V6)
- Grand Prix: 1997 (3.1L V6 or 3.8L V6, w/o supercharger)
- LeSabre: 1997 (3.8L V6)
- Lumina Car: 1997 (3.1L V6)
- Monte Carlo: 1997 (3.1L V6)
- Regal: 1997 (3.8L V6, w/o supercharger)
- Silhouette: 1997 (3.4L V6)
- Skylark: 1997 (3.1L V6)
- Trans Sport: 1997 (3.4L V6)
- Venture: 1997 (3.4L V6)
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
Absolutely not. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. This makes it a true plug-and-play part, saving you the time and high cost of dealership programming.
Where can I find my vehicle’s VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found in a few places: on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Is this a difficult part to install?
For most of these GM models, the PCM is located in the engine bay and is relatively accessible. Installation typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module to swap in the new one. While many DIY mechanics can perform the job, we always recommend consulting a repair manual or a professional technician if you are not comfortable with the process.
My original part number is 16218070. Will this work?
Yes, this module is a direct, interchangeable replacement for part number 16218070. It will function identically and is fully compatible.
Will this fix my check engine light?
If the check engine light is on due to an internal failure of the PCM, then yes, this part will solve the problem. After installation, it’s a good practice to clear any stored diagnostic trouble codes (DTCs) with a standard OBD2 scanner.