Is Your 1998 GMC Savana 3500 Running Out of Ideas?
If you’re dealing with baffling engine problems on your ’98 Savana 3500โlike stalling for no reason, erratic shifting, a persistent check engine light, or just a general lack of powerโthe issue might not be a sensor or a mechanical part. It could be the brain of the operation: the Powertrain Control Module (PCM). Over two decades of experience in the shop have taught me that when these workhorse vans start acting possessed, the PCM is often the ghost in the machine.
The PCM is responsible for managing everything from fuel injection and spark timing to transmission shift points and emissions controls. When it starts to fail, the symptoms can be all over the map, making diagnosis a real headache for even seasoned mechanics.
A Mechanic’s Real-World Story
“A customer’s 1998 Savana 3500 work van came in last week with these exact symptoms. It would crank but not start when cold, and if it did start, it would randomly die at stoplights. The owner had already replaced the crank sensor, plugs, and wires. We scanned it and got a dozen intermittent communication codes. After checking the wiring harness for integrity, we connected a scope to the PCM’s main power and ground circuits. We found that the internal voltage regulator was failing under load, causing the entire system to crash. A replacement PCM, programmed correctly, had the van running reliably in under an hour. It’s a classic failure mode for these modules after years of heat and vibration.”
The Direct Solution for Your GM Truck or Van
This isn’t just a replacement part; it’s a restoration of your vehicle’s core operational logic. We are providing a Powertrain Control Module that is a direct replacement for part number 09355699 and other compatible service numbers. The key to a successful repair is ensuring the module is correctly calibrated for your specific vehicle, and that’s exactly what we do.
- โ VIN-Specific Programming Included: Simply provide us with your vehicle’s 17-digit VIN after purchase. We will flash the module with the latest, most stable GM factory software for your exact configuration. This eliminates the need for an expensive trip to the dealership for programming.
- โ Restores Original Performance: A failing PCM can cause poor fuel economy, hesitation, and incorrect transmission behavior. This replacement module restores the precise calculations needed for optimal engine and transmission function.
- โ Resolves Confusing DTCs: Many phantom trouble codes (DTCs) related to sensors, communication, and performance are often triggered by a faulty PCM. Replacing it is the definitive fix for these frustrating electronic issues.
- โ Plug-and-Play Installation: Once programmed to your VIN, this module is ready for installation. In most cases, no complicated relearn procedures are required, getting you back on the road faster.
Confirming Your Part Number
To ensure a perfect match, please verify that the part number on your current module is one of the following. These numbers are often found on a sticker on the module’s case. This module is a direct replacement for service numbers:
- โ 09355699
- โ 16250279
- โ 09366810
Guaranteed Fitment
Based on decades of parts interchange data, we guarantee this module is compatible with the following vehicles, provided the part number on your original module matches. This is a partial list of the most common applications:
- โ 1998-1999 Chevrolet/GMC C/K 1500, 2500, 3500 Pickups (Gasoline)
- โ 1998-1999 Chevrolet Suburban / Tahoe & GMC Yukon (Gasoline)
- โ 1998-1999 Chevrolet Express & GMC Savana 1500, 2500, 3500 Vans (Gasoline)
- โ 1998-1999 Chevrolet Astro & GMC Safari Vans (4.3L)
- โ 1999 Cadillac Escalade
- โ 1998 Chevrolet S10 / GMC Sonoma (4.3L, w/o build date opt ZN4)
- โ 1998 Chevrolet Blazer / GMC Jimmy / Oldsmobile Bravada (4.3L, w/o build date opt ZN4)
Don’t let a faulty computer sideline your reliable GM truck or van. This VIN-programmed PCM is the most effective and straightforward way to solve complex electronic issues and restore the dependability you count on. Place your order, send us your VIN, and get ready for a smooth-running vehicle again.