Is Your 1996 Trans Sport Running Rough?
There’s nothing more frustrating than a vehicle you can’t rely on. If your 1996 Pontiac Trans Sport is experiencing baffling issues like stalling at stoplights, erratic shifting, a persistent Check Engine Light, or a complete no-start condition, the Powertrain Control Module (PCM) is often the culprit. As the central computer for your engine and transmission, its failure can create a cascade of problems that are difficult to diagnose. Over my 20+ years in the shop, I’ve seen how a faulty PCM can mimic a dozen other component failures, leading to wasted time and money on unnecessary parts.
The Direct, Reliable Solution for Your Van
This isn’t just a replacement part; it’s a complete solution. We are providing a fully tested Powertrain Control Module, compatible with service number 16231853, that comes pre-programmed specifically for your vehicle. Simply provide us with your Vehicle Identification Number (VIN) during checkout, and our technicians will flash the module with the latest, most stable GM software available. This ensures that when it arrives, it’s ready to restore your vehicle’s original performance and efficiency.
Expert Pro Tip from a 20-Year Veteran
Before you install your new PCM, take five minutes to inspect the main engine wiring harness, especially where it runs near the exhaust manifold and any mounting brackets on the 3.4L engine. Over two decades, vibrations can cause the harness loom to wear through, allowing a wire to ground out against the block. This is a common cause of repeat PCM failure. A quick inspection and some electrical tape can save you from damaging your new module.
Common Symptoms of a Failing 1996 Trans Sport PCM:
- โ Unexplained Check Engine Light
- โ Vehicle refuses to start or stalls intermittently
- โ Harsh or incorrect automatic transmission shifting
- โ Noticeable drop in fuel economy
- โ Poor engine performance, hesitation, or misfires
- โ Failure to communicate with a diagnostic scan tool
Plug-and-Play Installation: No Dealer Visit Required
One of the biggest benefits of our service is that this module arrives ready for installation. You won’t need a trip to the dealership or a specialized scan tool for additional programming. The process is straightforward for a DIY mechanic.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On the 1996 Trans Sport, the PCM is typically located in the engine bay, inside the air filter housing assembly. You’ll need to remove the air filter cover to access it.
- Disconnect the Old Module: Carefully unplug the electrical connectors from the old PCM. There are usually release tabs that need to be pressed.
- Swap the Modules: Remove the old PCM from its mounting bracket and install the new one in its place.
- Reconnect and Secure: Plug the wiring harness connectors firmly into your new PCM until they click into place. Reassemble the air filter housing.
- Final Step: Reconnect the negative battery terminal. The vehicle may need to run for a few minutes to complete its internal relearn process.
Guaranteed Compatibility
This module, part number 16211539, is the correct, direct-fit replacement for original GM service numbers 88963800, 16211539, and 16231853. It is guaranteed to be compatible with the following 1996 GM models, provided the engine matches the description:
- Buick: Century (3.1L), LeSabre (3.8L), Park Avenue (3.8L), Regal, Riviera (3.8L), Skylark (3.1L)
- Chevrolet: Beretta (3.1L), Corsica (3.1L), Lumina Car (3.1L & 3.4L), Lumina Van (3.4L), Monte Carlo
- Oldsmobile: Achieva (3.1L), Ciera (3.1L), Cutlass (3.1L & 3.4L), Eighty Eight (3.8L), Ninety Eight (3.8L), Silhouette (3.4L)
- Pontiac: Bonneville (3.8L), Grand Am (3.1L), Grand Prix, Trans Sport (3.4L)