Restore Peak Performance to Your 1999 Alero or Grand Am
Is your 1999 Oldsmobile Alero or Pontiac Grand Am suffering from frustrating and unpredictable engine problems? Issues like stalling, a persistent check engine light, or a complete failure to start can often be traced back to a failing Engine Control Module (ECM). This component is the brain of your vehicle, and when it malfunctions, it can cause a cascade of performance issues. This replacement ECM, part number 9361733, is the definitive solution to get your vehicle running smoothly and reliably again.
We take the guesswork and hassle out of the repair process. Unlike a generic module from a parts store or salvage yard, this unit is specifically programmed for your vehicle before it ever leaves our facility. All we need is your vehicle’s 17-digit Vehicle Identification Number (VIN) at the time of purchase. Our technicians will flash the module with the latest GM-certified software and calibrations that match your car’s exact specifications. This ensures a seamless, plug-and-play installation without the need for an expensive trip to the dealership for programming.
We recently had a 1999 Grand Am GT come in on a tow truck. The owner had spent hundreds of dollars replacing the crank sensor, cam sensor, and even the fuel pump, but the car would still randomly stall and refuse to restart for hours. The check engine light was on, but the codes were intermittent and misleading. After confirming power and ground to the ECM, we connected our diagnostic tools and found the module was failing to communicate consistently. We installed one of our pre-programmed units, and the car fired right up and ran perfectly. The owner was thrilled to finally have a reliable car again after chasing the problem for weeks. It’s a classic case where the root cause was the central computer, not the components it was monitoring.
Is Your Vehicle Showing Signs of ECM Failure?
A faulty ECM can manifest in various ways. If you’re experiencing any of the following symptoms, a failing engine computer could be the culprit. This replacement 1999 Alero ECM is designed to resolve these common issues:
- âś” Persistent Check Engine Light (CEL) that won’t clear or returns with various codes.
- âś” Engine stalling or shutting off unexpectedly while driving.
- âś” Difficulty starting the engine or a complete no-start condition.
- âś” Noticeable decrease in fuel economy.
- âś” Rough or erratic idling.
- âś” Poor acceleration and overall loss of engine power.
- âś” Harsh or incorrect automatic transmission shifting.
- âś” Failure to pass emissions testing.
The Plug-and-Play Solution for Your 1999 Alero ECM
The primary advantage of our service is the convenience and reliability of receiving a part that is ready for installation right out of the box. The ECM is the central hub of your vehicle’s electronics, managing everything from fuel injection and ignition timing to transmission shift points and emissions controls. A non-programmed or incorrectly programmed module simply will not work, and can even cause damage to other components. By providing us with your VIN, you guarantee that the module you receive is a perfect match for your vehicle’s original factory settings, ensuring all systems function as intended.
Guaranteed Fitment
This Engine Control Module is a direct-fit replacement for vehicles with part number 09361733 or 9361733. Please verify this part number on your original module before ordering. This unit is compatible with the following vehicles:
- 1999 Oldsmobile Alero (with 3.4L engine)
- 1999 Pontiac Grand Am (with 3.4L engine)
The ECM is typically located on the left-hand (driver’s) side, in the center dash area. Installation is straightforward for a DIY mechanic with basic tools. Simply disconnect the battery, access and remove the old module, install the new one, and reconnect the battery. No further steps are required.
Frequently Asked Questions
Do I need to get this ECM programmed by a dealer?
No. We handle all the programming for you before we ship the part. Simply provide your vehicle’s VIN during checkout, and the ECM will arrive ready to install. This is a true plug-and-play solution.
Where is the ECM located on my 1999 Alero or Grand Am?
The Electronic Control Module is located inside the vehicle, in the center dash area, accessible from the driver’s side (LH).
What information do you need from me?
All we need is your vehicle’s 17-digit Vehicle Identification Number (VIN). You can typically find this on your driver’s side dashboard (visible through the windshield), on your vehicle’s registration, or on the driver’s side door jamb sticker.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM, this part will resolve the issue. After installation, it’s recommended to clear any stored trouble codes with a standard OBD2 scanner to reset the system.
Is this a new part?
This is a high-quality, tested replacement part that is guaranteed to meet or exceed original equipment specifications. Each unit is thoroughly inspected and programmed to ensure reliability and performance.