Is Your 1998 Oldsmobile Bravada Running Rough?
If you’re dealing with frustrating issues like a persistent check engine light, sudden stalling, a no-start condition, or erratic engine behavior, a failing Powertrain Control Module (PCM) is often the culprit. As a mechanic with over 20 years of experience diagnosing these GM trucks and SUVs, I’ve seen these symptoms countless times. The PCM is the brain of your vehicle, and when it starts to fail, it can cause a cascade of problems that are difficult to track down. You’re not just buying a part; you’re buying a solution to get your reliable Bravada back on the road.
This is a genuine, used OEM PCM that has been meticulously tested and is ready for service. We take the guesswork and hassle out of the repair by programming the module specifically for your vehicle using your VIN. This ensures it has the latest GM software updates and communicates perfectly with your Bravada’s systems right out of the box.
Expert Pro Tip from a 20-Year Veteran Mechanic
Before you install this new PCM, take a moment to inspect the main engine-to-chassis ground strap. On these S-series platforms (Bravada, Jimmy, Blazer), this strap can corrode or break over time. A poor ground connection can cause voltage fluctuations that can mimic PCM failure and, in worst-case scenarios, damage the replacement module. It’s a simple 5-minute check that can save you a massive headache.
Why Choose Our Programmed 1998 Bravada PCM?
A customer’s ’98 GMC Jimmy came in last week with these exact symptoms: intermittent stalling and a fuel gauge that was reading empty despite a full tank. The parts cannon had already been fired at itโnew fuel pump, new ignition coilโwith no success. After hooking up my scan tool and seeing communication dropouts with the PCM, I knew where the problem was. A faulty module was corrupting data on the network. This VIN-programmed PCM is the exact, cost-effective fix for that kind of complex electrical issue.
- โ VIN-Programmed & Ready to Install: We flash the module with your vehicle’s VIN and the latest GM software before it ships. This eliminates the need for expensive dealer programming.
- โ Solves Common Issues: A direct solution for check engine lights (CEL), no-start conditions, poor fuel economy, and erratic shifting.
- โ OEM Reliability: This is a tested, used OEM part, not a questionable aftermarket component. It’s the same quality part your vehicle was built with.
- โ Guaranteed Compatibility: By matching your VIN, we ensure this module is a perfect match for your vehicle’s options and systems.
Plug-and-Play Installation: No Dealer Visit Required
You can install this module yourself with basic hand tools. Hereโs a general guide for your 1998 Bravada:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On your Bravada, the PCM is typically located in the engine bay on the right-hand (passenger) side, often near the firewall or inner fender.
- Disconnect Connectors: Carefully unclip the wiring harness connectors from the old PCM. Inspect the pins for any signs of corrosion or damage.
- Remove Old Module: Unbolt the old PCM from its mounting bracket.
- Install New Module: Bolt the new, programmed PCM into place and securely reconnect the wiring harnesses. You should hear a distinct click.
- Reconnect Battery: Re-attach the negative battery terminal. The vehicle is now ready to start.
Part Number Verification
This module, identified by service number 9355699, is a direct replacement for several other part numbers. Please ensure your original module has one of the following numbers on the sticker: 09355699, 16266645, 16250279, 16258815, 09366810, or 9366810. Providing your VIN is the most accurate way to guarantee a perfect match.