Is Your 1998 Bravada Running Rough or Refusing to Start?
If you’re dealing with a persistent check engine light, unpredictable stalling, poor fuel mileage, or a no-start condition in your Oldsmobile Bravada, a failing Powertrain Control Module (PCM) is a very likely culprit. As a mechanic with over two decades of experience under the hood, I’ve seen these exact symptoms hundreds of times on this GM platform. The PCM is the brain of your engine, and when it starts to fail, it can cause a cascade of frustrating and hard-to-diagnose problems.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We are offering a reliable, tested, used OEM Engine Computer, part number 16258815, that has been professionally programmed with the latest GM software updates specifically for your vehicle’s VIN. This eliminates the most expensive and time-consuming part of the repair: a trip to the dealership for programming.
The Right Fix, Programmed and Ready for Your 1998 Bravada PCM
Don’t waste time and money chasing down sensors and other components when the core issue is the computer itself. We take the guesswork out of the equation. By providing us with your Vehicle Identification Number (VIN) after your purchase, you receive a module that is truly plug-and-play.
Expert Pro Tip: Check Your Connectors!
Before you plug in your replacement PCM, take a moment to inspect the vehicle’s harness connectors. Over the years, moisture can lead to green or white corrosion on the pins, and pins can sometimes get bent during removal of the old unit. Use a small pick and some electrical contact cleaner to ensure every pin is clean and straight. A poor connection is the #1 reason a perfectly good replacement module fails to work, so this five-minute check can save you hours of frustration.
Key Benefits of This VIN-Programmed Module:
- โ No Dealer Programming Needed: We flash the module with your vehicle’s specific VIN and the newest GM software updates before it ships.
- โ Solves Common Issues: A direct fix for symptoms like harsh shifting, engine misfires, communication error codes, and no-start conditions related to the ECU.
- โ Cost-Effective Repair: Get the reliability of a genuine OEM part without the high cost of a new module and dealer service fees.
- โ Guaranteed Compatibility: This unit is a direct replacement for a wide range of part numbers, ensuring it works for your application.
Simple, Straightforward Installation
Replacing the PCM on these GM trucks and SUVs is a job most DIY mechanics can handle in their own driveway. While locations vary slightly by model, the process is generally the same.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the PCM: On the 1998 Bravada, Envoy, Blazer, and Jimmy, the PCM is typically found in the engine bay, on the passenger side (RH) near the front. On full-size trucks and vans, it’s often on the driver’s side (LH).
- Disconnect and Remove: Carefully unlatch and remove the electrical connectors. Note their color or position. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the replacement PCM into place and securely reconnect the electrical harnesses. Ensure they click and lock into position.
- Reconnect Battery: Reattach the negative battery terminal. The vehicle is now ready to start.
Broad Compatibility Across the GM Lineup
This engine computer, identified by service ID 9355699, was used across an extensive range of GM vehicles. Your order is guaranteed to be compatible if your vehicle is on this list and you require one of the following part numbers: 09355699, 16266645, 9355699, 16250279, 16258815, 09366810, or 9366810.
This part fits many 1998-1999 models including the Chevrolet & GMC C/K 1500/2500/3500 Pickups, Suburban, Tahoe, Yukon, Express, Savana, as well as the Astro, Safari, S10, Sonoma, Blazer, Jimmy, Bravada, Envoy, Escalade, and Isuzu Hombre. Please verify your original part number or consult the detailed fitment list to confirm this is the correct part for your truck or SUV.