Is Your 1998 GMC Safari Running Rough?
If you’re dealing with frustrating issues like stalling, erratic shifting, a persistent check engine light, or a no-start condition, the problem often points directly to a failing Powertrain Control Module (PCM). As a technician with over two decades of experience, I’ve seen these exact symptoms on countless GM vans and trucks from this era. The PCM is the brain of your vehicle, and when it starts to fail, it can cause a cascade of problems that are often misdiagnosed, costing you time and money on parts you don’t need.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We are offering a reliable, used OEM Powertrain Control Module that has been meticulously tested and is ready for installation. The key benefit is our professional programming service: we flash the module with the latest GM-certified software specifically for your vehicle’s VIN. This ensures perfect compatibility and optimal performance, right out of the box.
Why Choose Our Pre-Programmed 1998 GMC Safari PCM?
Getting your Safari back on the road shouldn’t be complicated. Our process eliminates the need for expensive dealership visits or specialized scan tools for programming. We handle the technical work so you can focus on the simple installation.
- โ VIN-Specific Programming: We load your vehicle’s exact VIN and the most current GM software onto the module before it ships. This ensures all systems, from the engine to the transmission, function as the factory intended.
- โ Cost-Effective Repair: Avoid the high costs of a new module and dealer programming fees. This is a budget-friendly solution that delivers reliable performance.
- โ Restores Original Performance: A correctly programmed PCM resolves common drivability issues, restores fuel efficiency, and ensures smooth transmission shifting.
- โ Wide Compatibility: This module, identified by service number 09355699, is a direct replacement for a wide range of GM trucks and vans. It is interchangeable with part numbers 16258815, 09355699, 16266645, 16250279, and 09366810.
Expert Pro Tip from a 20-Year Tech: Before you install your new PCM, take five minutes to inspect and clean the main engine-to-chassis ground strap. On these GM vehicles, a corroded or loose ground can cause voltage fluctuations that mimic PCM failure or even damage the new module over time. It’s a simple check that has saved my customers from repeat repairs countless times.
Simple Plug-and-Play Installation Guide
You can do this job yourself with basic hand tools. Hereโs a typical installation process for a 1998 GMC Safari:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post.
- Locate the PCM: On the Safari and Astro vans, the PCM is typically located in the engine compartment on the driver’s side, near the battery and coolant overflow tank.
- Disconnect the Connectors: Carefully unclip and remove the electrical harness connectors from the old PCM. Inspect the pins on the harness side for any green or white corrosion. If you see any, clean them gently with a small brush and electrical contact cleaner.
- Remove the Old Module: Unbolt the PCM from its mounting bracket. It’s usually held in by a couple of small bolts.
- Install the New Module: Seat your new, pre-programmed PCM into the bracket and secure it with the bolts.
- Reconnect Everything: Firmly plug the harness connectors into the new module until they click into place. Reconnect your negative battery terminal.
After installation, your vehicle will be ready to start. The security system may require a simple relearn procedure, which typically involves cycling the key, but in most cases, it will start and run immediately. By providing your VIN at checkout, you ensure this 1998 GMC Safari PCM arrives ready to restore your vehicle’s reliability and performance.