Restore Peak Performance to Your GM Vehicle
Is your Grand Am, Cavalier, or S10 suffering from frustrating and unpredictable issues? An erratic idle, poor fuel economy, a persistent check engine light, or even a no-start condition can often be traced back to a failing Powertrain Control Module (PCM). This vital component is the brain of your vehicle’s engine and transmission, and when it falters, the entire system is compromised. This replacement PCM, service number 16228016, is the definitive solution to get your vehicle running reliably again.
Unlike a generic part from a salvage yard, this module is delivered to you fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We install the latest GM-authorized software updates before it ships, ensuring optimal performance, fuel efficiency, and emissions control. This critical programming step means you can avoid a costly and time-consuming trip to the dealership for flashing. It’s a true plug-and-play solution designed for a straightforward installation.
From the Diagnostic Bay
We had a 1998 Chevy S10 in the shop that was driving the owner crazy. It would start and run fine for days, then suddenly refuse to start. No crank, no spark, nothing. The battery was new, the starter checked out, and the fuel pump was priming. After hours of chasing wires, we hooked up a high-level scanner and noticed the PCM would intermittently lose communication. We swapped in a programmed 16228016 module, and the truck fired up instantly. The internal logic board on the old unit was failing intermittently, a classic sign of age. This isn’t just a part; it’s the restoration of your vehicle’s reliability.
Common Symptoms of a Failing PCM
- ✔ Unexplained Check Engine Light (CEL) illumination.
- ✔ Vehicle fails to start or starts intermittently.
- ✔ Rough or erratic engine idling.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or delayed automatic transmission shifting.
- ✔ Engine stalling or hesitating during acceleration.
- ✔ Communication error codes with diagnostic scan tools.
Why Choose Our 1997-1999 Grand Am PCM?
This isn’t just a replacement part; it’s a comprehensive solution. The key is our professional programming service. By providing your VIN during checkout, you ensure that the module you receive is perfectly matched to your vehicle’s factory specifications and options. It will recognize your engine, transmission, and emissions equipment, functioning exactly as the original unit did when it was new. The 1997-1999 Grand Am PCM is a critical component, and correct software is non-negotiable for proper operation. We handle that for you, so you can focus on the installation.
Simple Installation Process
- Disconnect the Battery: Always begin by disconnecting the negative battery terminal for safety.
- Locate the PCM: On these vehicles, the PCM is typically found in the engine bay (often on the firewall or inner fender) or under the dashboard.
- Disconnect Connectors: Carefully unplug the wiring harnesses from the old module.
- Swap the Module: Unbolt the old PCM and install the new one in its place.
- Reconnect Everything: Plug the wiring harnesses firmly into the new PCM and reconnect the negative battery terminal.
- Perform Security Relearn (if necessary): Some GM vehicles of this era may require a simple key-cycle security relearn procedure, which can be done without special tools. Instructions are readily available online for your specific model.
By purchasing this pre-programmed 1997-1999 Grand Am PCM, you are restoring the central nervous system of your vehicle. It is the most effective way to solve a host of electronic and performance-related problems, ensuring your car or truck runs smoothly for years to come.
Full Vehicle Fitment List
This module is a direct replacement for service number 16228016 and is also compatible with 8162280160 and 16245305. It fits the following models:
- Pontiac Grand Am: 1997-1998 (2.4L), 1999 (2.4L, ID 16228016)
- Pontiac Sunfire: 1997-1999
- Chevrolet Cavalier: 1997-1999
- Chevrolet Malibu: 1997-1998 (2.4L), 1999 (2.4L)
- Chevrolet S10 / GMC Sonoma: 1997-1999 (2.2L), 2000 (2.2L, 8th VIN digit ‘4’)
- Isuzu Hombre: 1996, 1997-1998 (2.2L), 1999-2000 (2.2L)
- Buick Skylark: 1997-1998 (2.4L)
- Oldsmobile Achieva: 1997-1998 (2.4L)
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls all aspects of engine and transmission operation, including fuel injection, ignition timing, spark, and shift points to ensure optimal performance, fuel economy, and emissions.
Do I need to get this PCM programmed?
No. We handle all the programming for you before we ship the part. You just need to provide us with your vehicle’s VIN at checkout. This makes the unit ready for installation right out of the box, saving you a trip to the dealer.
Where is the PCM located on my vehicle?
The location varies by model. On S10/Sonoma trucks and Cavalier/Sunfire cars, it’s typically on the right-hand side of the engine compartment. On models like the Grand Am and Malibu, it’s often located under the dash on the driver’s or passenger’s side.
What happens if I don’t provide my VIN?
We cannot ship the module without your VIN. The programming is specific to each vehicle, and installing an unprogrammed or incorrectly programmed module will result in a no-start condition or severe performance issues. It is a required step for your order.
Is this part compatible with other service numbers?
Yes, this PCM with part number 16228016 is a direct replacement for service numbers 8162280160 and 16245305. If your original module has one of these numbers, this part will be a perfect fit.