Is Your 1997 GM Truck or Van Running Rough?
If you’re dealing with a persistent check engine light, erratic engine behavior, stalling, or a no-start condition in your 1997 Chevrolet S10, GMC Sonoma, or other compatible GM vehicle, a failing Powertrain Control Module (PCM) is a likely culprit. The PCM is the central computer of your vehicle, managing everything from fuel injection and ignition timing to transmission shifting. When it fails, it can cause a host of frustrating and difficult-to-diagnose problems. This replacement PCM is the definitive solution to restore your vehicle’s performance and reliability.
Expert Pro Tip
After placing your order, please double-check your Vehicle Identification Number (VIN) before sending it to us. A single incorrect digit can result in the wrong software being loaded, which will prevent the module from working in your vehicle. The VIN is typically found on the driver’s side dashboard (visible through the windshield) or on the driver’s door jamb sticker.
Common Symptoms of a Failing 1997 S10 PCM
A faulty engine computer can manifest in numerous ways. If you’re experiencing any of the following issues, it’s a strong indicator that your PCM needs to be replaced:
- ✔ Check Engine Light is on with various trouble codes (DTCs)
- ✔ Engine stalling or shutting off unexpectedly while driving
- ✔ Difficulty starting the engine or a complete no-start condition
- ✔ Poor fuel economy and reduced engine power
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Misfires, rough idling, or hesitation during acceleration
- ✔ Failure to pass state emissions testing
Plug-and-Play Solution, Programmed for Your Vehicle
Don’t waste time and money at the dealership. We take the guesswork out of the repair by pre-programming this module specifically for your vehicle using your VIN. This ensures that the unit arrives with the correct factory software and calibrations for your truck’s engine, transmission, and options. The process is simple: you purchase the module, provide us with your VIN, and we handle the complex programming before it ships. This allows for a straightforward installation that gets you back on the road faster.
Installation Process
Replacing the PCM is typically a simple process. It is located in the engine compartment, usually on the driver’s side. After disconnecting the battery, you can unbolt the old module, unplug the electrical connectors, and install the new one in its place. In many cases, a security relearn procedure (often called a CASE relearn or Passlock relearn) may be required after installation. This procedure is simple and can be performed without special tools, typically involving a sequence of key turns. Instructions for this can be found in service manuals or online resources for your specific model.
Guaranteed Fitment
This Electronic Control Module is a direct replacement for part numbers 16229684 and 8162296840. It is guaranteed to fit the following 1997 models:
- ASTRO
- BLAZER S10/JIMMY S15 (4.3L)
- BRAVADA (4.3L)
- CHEVROLET 1500/2500/3500 PICKUP (Gasoline)
- EXPRESS 1500/2500/3500 VAN (Gasoline)
- GMC 1500/2500/3500 PICKUP (Gasoline)
- ISUZU HOMBRE (4.3L)
- S10/S15/SONOMA (4.3L)
- SAFARI (GMC)
- SAVANA 1500/2500/3500 VAN (Gasoline)
- SUBURBAN 1500/2500 (Gasoline)
- TAHOE/YUKON (Gasoline)
Frequently Asked Questions
Do I need to do any programming myself?
No. This module comes pre-programmed to the VIN you provide after your purchase. It is ready for installation right out of the box, though a vehicle-side security relearn procedure may be necessary.
Where do I send my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. We cannot ship your order until we receive this information.
Is this a brand new part?
This is a high-quality, fully tested replacement part that has been prepared to meet or exceed original equipment specifications. Each unit is inspected and programmed with the latest software available from the manufacturer.
What if my part number is slightly different?
This module is a direct replacement for part numbers 16229684 and 8162296840. If your original module has one of these numbers, this part is compatible with your vehicle, provided it is listed in the fitment chart.
What tools are needed for installation?
Basic hand tools, such as a socket set, are typically all that is required to physically replace the module. No special programming tools are needed from your end.