Is Your 1998-1999 GM Truck or SUV Running Rough?
If your GMC Yukon, Chevy Tahoe, or Suburban is experiencing frustrating issues like a persistent check engine light, stalling, erratic shifting, or a complete no-start condition, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer, the PCM manages everything from fuel delivery and spark timing to transmission shift points. When it begins to fail, it can cause a cascade of problems that are difficult to diagnose and can leave you stranded. Don’t let a faulty computer dictate your vehicle’s reliability.
The Plug-and-Play Solution for Your Vehicle
This genuine, used OEM Powertrain Control Module is the definitive solution to get your vehicle running correctly again. Unlike a generic part from a local store, this unit is professionally programmed specifically for your truck or SUV. We use your vehicle’s unique Vehicle Identification Number (VIN) to flash the module with the latest, most stable software updates directly from GM. This critical step ensures perfect compatibility and communication with your vehicle’s existing systems, eliminating the guesswork and the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
I once had a ’99 Suburban in the shop that was driving the owner crazy. It would run fine for days, then suddenly stall at a stoplight and refuse to restart for 20 minutes. There were no consistent codes, just a random collection of communication errors. After chasing down wiring and testing sensors for hours, we swapped in a known-good PCM. The problem vanished instantly. The original PCM had an internal failure that only showed up when it got hot. A pre-programmed module like this one would have saved hours of diagnostic time and frustration.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) that won’t clear.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Vehicle refuses to start or has intermittent starting issues.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh, erratic, or delayed automatic transmission shifts.
- ✔ Communication loss with diagnostic scan tools.
- ✔ Failure to pass emissions testing.
Your Reliable 1998-1999 Yukon PCM Solution
This module is a direct replacement for multiple part numbers, including 09355699, 16266645, 16250279, 16258815, and 9366810. By providing us with your VIN during checkout, you ensure that the unit you receive is ready for installation. While the physical swap is straightforward for any DIY mechanic, some vehicles may require a simple security relearn procedure (often called the ’10-minute relearn’) to sync the new PCM with the anti-theft system. This can typically be done in your driveway without any special tools. Restore the performance and dependability of your GM vehicle with this reliable, VIN-programmed 1998-1999 Yukon PCM.
Guaranteed Fitment For:
This module is compatible with a wide range of 1998-1999 General Motors trucks, vans, and SUVs. Please verify your part number or consult the list below. This unit fits vehicles such as:
- 1998-1999 Chevrolet & GMC 1500/2500/3500 Pickups (Gasoline)
- 1998-1999 Chevrolet Suburban & GMC Suburban (Gasoline)
- 1998-1999 Chevrolet Tahoe & GMC Yukon
- 1999 Cadillac Escalade
- 1998-1999 Chevrolet Express & GMC Savana Vans (Gasoline)
- 1998 Chevrolet Astro & GMC Safari
- 1998 Oldsmobile Bravada, GMC Envoy, S10/S15/Sonoma, Blazer/Jimmy (4.3L)
- 1998 Isuzu Hombre (4.3L)
Note: Compatibility is confirmed for vehicles matching service ID 09355699 or one of the other listed part numbers.
Frequently Asked Questions
Do I need to get this computer programmed?
No. This PCM comes pre-programmed to your vehicle’s specific VIN. You must provide your VIN at the time of purchase so we can flash the module with the correct GM software before shipping it to you.
What is the difference between a PCM, ECM, and ECU?
These acronyms are often used interchangeably. PCM (Powertrain Control Module) is most accurate for these GM vehicles as it controls both the engine (Engine Control Module – ECM) and the transmission. ECU (Electronic Control Unit) is a more generic term.
Is a security relearn procedure required after installation?
Most likely, yes. GM vehicles of this era use a Passlock or VATS anti-theft system that needs to be synchronized with the new PCM. This is typically a simple procedure involving turning the key to the ‘ON’ position for 10-12 minutes, three times in a row. Instructions are widely available online.
Where do I find my vehicle’s VIN?
Your 17-digit VIN can be found on a metal tag on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Is this a new part?
No, this is a high-quality, tested, and guaranteed functional used OEM part sourced from a salvaged vehicle. This ensures OEM-level reliability and fitment.