Is Your Truck Running Rough, Stalling, or Showing a Check Engine Light?
If you’re dealing with frustrating engine problems in your Chevy S10, GMC Sonoma, or Isuzu Hombre, a failing Powertrain Control Module (PCM) is often the culprit. I’ve been wrenching on these trucks for over two decades, and I’ve seen it all: erratic idling, poor fuel economy, hard starting, and a dashboard lit up like a Christmas tree. These aren’t just annoyances; they’re signs that the brain of your engine is struggling. This module, part number 16245305, is the direct, reliable solution to get your vehicle back on the road and running smoothly.
The Hassle-Free Solution: Programmed & Ready to Install
The biggest headache with replacing a PCM used to be the mandatory trip to the dealership for expensive programming. We eliminate that step entirely. When you purchase this module, we will flash it with the latest GM software updates, specifically calibrated to your vehicle using the VIN you provide. This means it arrives at your door ready for a simple, plug-and-play installation. No special tools, no dealer appointments, just a straightforward fix.
Expert Pro Tip from a 20-Year Veteran Technician
Before you install your new PCM, take a close look at the wiring harness and connectors. On these S10/Sonoma trucks, the PCM is located in the right-front of the engine bay, where it’s exposed to the elements. I’ve seen countless cases where corrosion on the connector pins or a chafed wire nearby was the root cause of the original failure. A quick cleaning with a contact cleaner and a visual inspection of the harness can prevent damage to your new module and save you from a repeat headache down the road.
Symptoms of a Failing 1997-2000 S10 PCM
If your truck is experiencing any of the following, a faulty engine computer is a likely cause:
- âś” Unexplained Check Engine Light (CEL)
- âś” Engine stalling or cutting out while driving
- âś” Harsh or erratic automatic transmission shifting
- âś” A complete no-start condition where the engine cranks but won’t fire
- âś” Noticeable drop in fuel mileage
- âś” Failure to pass an emissions test
- âś” Communication errors with diagnostic scan tools
Plug-and-Play Installation: No Dealer Visit Required
You can do this job yourself in your own driveway. Here’s a basic guide:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On most S10, S15, and Sonoma models, the PCM is located in the engine compartment on the passenger side, near the firewall.
- Disconnect the Old Module: Carefully unplug the electrical connectors. There are typically release tabs that need to be pressed or lifted.
- Remove the Old PCM: Unbolt the module from its mounting bracket.
- Install the New PCM: Mount your new, pre-programmed module in place and securely reconnect the wiring harnesses. Ensure they click into place.
- Reconnect the Battery: Attach the negative battery terminal. Your vehicle is now ready to start.
Guaranteed Compatibility
This module is a direct replacement for several GM vehicles and service numbers. Please verify your part number or vehicle in the list below. This unit is compatible with service numbers 16228016, 8162280160, and 16245305.
This part will fit these makes and models with these options:
- ACHIEVA: 1997-1998 (2.4L)
- CAVALIER: 1997-1999
- GRAND AM: 1997-1998 (2.4L), 1999 (2.4L, ID 16228016)
- ISUZU HOMBRE: 1996, 1997-1998 (2.2L), 1999-2000 (2.2L)
- MALIBU: 1997-1998 (2.4L), 1999 (2.4L)
- S10/S15/SONOMA: 1997-1998 (2.2L), 1999 (2.2L), 2000 (2.2L, VIN 4)
- SKYLARK: 1997-1998 (2.4L)
- SUNFIRE: 1997-1999
IMPORTANT: After your purchase, please send us your vehicle’s 17-digit VIN. We cannot ship your order until we have this information to program the module correctly.