Is Your 1997 GM Vehicle Running Rough?
If you’re dealing with frustrating issues like harsh shifting, a no-start condition, an illuminated Check Engine Light, or unpredictable engine performance in your 1997 Buick Riviera or a similar GM car, the Powertrain Control Module (PCM) is often the component at the heart of the problem. Over two decades of service, the original electronic components inside these modules can degrade, leading to faulty calculations and incorrect commands sent to your engine and transmission.
I’ve seen this countless times in my shop. A customer’s 1997 Grand Prix with the supercharged 3.8L came in last month with what he was sure was a failing transmission. It would slam into gear and occasionally refuse to shift. After checking the basics, we found the PCM was sending erratic signals to the shift solenoids. Instead of a multi-thousand dollar transmission job, this correctly programmed module had him back on the road, shifting smoothly, for a fraction of the cost.
The Direct Solution: A Programmed 1997 Riviera PCM
This isn’t just a replacement part; it’s a complete solution. We take a quality Powertrain Control Module and flash it with the latest official GM software calibration specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) after your purchase. This critical step ensures that the module communicates perfectly with your car’s specific engine, transmission, and options, restoring its original performance and efficiency.
Expert Pro Tip from a 20-Year Technician
Before you install your new PCM, take five extra minutes to locate and clean the main electrical connector and its terminals. On these mid-90s GM vehicles, the pins can develop a thin layer of corrosion that disrupts communication. A quick spray with a quality electronic parts cleaner and a gentle scrub with a small brush can prevent a host of phantom issues and ensure a solid connection for your new module.
Plug-and-Play Installation: No Dealer Visit Required
One of the biggest advantages of our service is that this module arrives ready to install. You can bypass the expensive trip to a dealership for programming. The installation is straightforward for a DIY mechanic.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On most of these models, the PCM is located under the hood, often inside the air filter housing or mounted near the firewall.
- Disconnect and Remove: Carefully unplug the wiring harnesses by releasing their locking tabs. Then, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt the new PCM into place and securely reconnect the wiring harnesses. Ensure they click into place.
- Final Step: Reconnect the negative battery terminal. The vehicle is now ready to start.
Guaranteed Compatibility
This module is a direct replacement for part numbers 16227797 and 19109047. It is guaranteed to fit and function correctly in the following 1997 vehicles with the specified engine options:
- โ Bonneville: 3.8L (6-231) with supercharged option
- โ Camaro: 3.8L (6-231)
- โ Eighty Eight: 3.8L (6-231) with supercharged option
- โ Firebird: 3.8L (6-231)
- โ Grand Prix: 3.8L (6-231) with supercharged option
- โ Lumina Car: 3.4L (6-207)
- โ Monte Carlo: 3.4L (6-207)
- โ Park Avenue: 3.8L (6-231)
- โ Regal: 3.8L (6-231) with supercharged option
- โ Riviera: 3.8L (6-231)
Don’t let a faulty computer keep your classic GM off the road. Order today, provide your VIN, and get the reliable, pre-programmed solution delivered to your door.