Is Your GM Vehicle Running Rough? Get a Reliable Solution.
If you’re dealing with frustrating issues like a persistent check engine light, poor fuel economy, erratic shifting, or even a no-start condition in your 1998 or 1999 GM car, a failing Powertrain Control Module (PCM) is often the culprit. Don’t let a faulty computer keep you off the road. This professionally programmed PCM is the definitive solution to restore your vehicle’s performance, reliability, and drivability, getting you back behind the wheel with confidence.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of confusing symptoms that can be difficult to diagnose. If you’re experiencing any of the following, this part is your answer:
- Unexplained Check Engine Light (with codes like P0601, P0605, P0606)
- Engine Stalling or Misfiring
- Harsh or Failed Transmission Shifting
- Poor Acceleration and Reduced Power
- Decreased Fuel Efficiency
- Intermittent No-Start Conditions
This replacement 1998-1999 GM PCM 9356741 is programmed with the latest GM software updates specifically for your vehicle’s VIN. This critical step ensures all components communicate correctly, resolving those frustrating issues and restoring your car’s factory-intended operation.
Features & Benefits
- โ VIN-Programmed for a Perfect Match: We flash this module with your car’s specific Vehicle Identification Number, ensuring it works seamlessly with your engine, transmission, and options. No extra programming needed.
- โ Restores Peak Performance: Corrects common running problems, leading to a smoother idle, responsive acceleration, and proper shifting.
- โ Plug-and-Play Installation: Arrives ready to be installed, saving you from a costly and time-consuming trip to the dealership for programming.
- โ Broad GM Compatibility: A direct replacement for a wide range of popular 1998-1999 GM vehicles, including models from Chevrolet, Pontiac, Oldsmobile, and Buick.
- โ Drive with Confidence: This unit is backed by our one-year replacement warranty.
Expert Insight: Why a Programmed PCM is Essential
For these late-90s GM vehicles, the PCM is the central brain, controlling everything from fuel mixture and spark timing to transmission shift points. Over two decades of heat cycles and vibrations can cause internal components to fail. Simply pulling a used computer from a junkyard won’t work, as it’s programmed for a different vehicle’s options and security system. Our process of programming this 1998-1999 GM PCM 9356741 to your exact VIN is the only way to guarantee a successful and lasting repair, making it the smart choice over a generic, unprogrammed part.
Frequently Asked Questions
Do I need to do any programming myself?
No. This PCM will arrive pre-programmed to the VIN you provide after your purchase. It is ready for installation right out of the box. In some cases, a security relearn procedure may be necessary, which is a simple process that can be done without special tools.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot ship your part until we receive your VIN.
Where is the PCM located on my vehicle?
On most of the compatible models, the PCM is located in the engine compartment, often inside the air filter box assembly or mounted to the firewall. For vehicles like the Alero or Grand Am, it can be found under the dash on the driver’s or passenger’s side. We recommend consulting a repair manual for your specific model for the exact location.
Is this compatible with my specific car?
This module is a direct replacement for service numbers 09356741, 16236757, 9357034, 9357440, and 9366314. Please check the fitment list on this page and confirm your original part has one of these numbers to ensure compatibility.
What if my original part number isn’t listed?
If your part number is not on the list, this specific module may not be correct for your vehicle. Please contact us with your vehicle information and original part number, and we will be happy to assist you in finding the correct part.
What is the next step after I install the 1998-1999 GM PCM 9356741?
After installation, it is crucial to clear any old trouble codes from the system using a standard OBD2 scanner. Then, start the vehicle and let it idle for a few minutes. A short test drive will allow the computer to complete its learning cycles and confirm the repair.