Is Your GM Truck or Van Acting Up? Get it Back to Work.
If your 1998-1999 Savana 2500, Express Van, or GM Pickup is suddenly giving you headachesโlike refusing to start, shifting erratically, or throwing a cascade of confusing check engine light codesโthe problem often points directly to a failing Powertrain Control Module (PCM). As the brain of your vehicle’s engine and transmission, when it falters, everything else follows. You need a reliable, straightforward fix that doesn’t involve guesswork or expensive dealer visits. This is it.
This is a thoroughly tested, genuine used GM PCM that we program specifically for your vehicle. Simply provide your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the module with the latest official GM software updates. This ensures it communicates perfectly with your vehicle’s systems right out of the box.
The Solution to Your Most Frustrating Drivability Problems
A failing PCM can mimic dozens of other issues, leading to wasted time and money on unnecessary parts. In my 20+ years as a technician, I’ve seen countless vehicles come into the shop after the owner replaced perfectly good sensors and solenoids. This module is the direct solution for common PCM failure symptoms:
- โ No-start or intermittent starting conditions
- โ Harsh or erratic automatic transmission shifting
- โ Poor fuel economy and engine performance
- โ Unexplained Check Engine Lights that won’t clear
- โ Communication errors with diagnostic scan tools
From the Shop Floor: A Real-World Diagnosis
“A customer’s ’99 Chevy Express 2500 work van came in last week with a persistent P0753 code for the Shift Solenoid ‘A’ circuit. The owner had already replaced the solenoid twice. We tested the wiring from the transmission connector back to the PCM and found it was perfect. The issue was internal to the PCMโthe driver circuit for that solenoid had failed, a common problem on these units after 20+ years of heat cycles. We installed one of our VIN-programmed PCMs, and the van was shifting perfectly within 30 minutes. This is the kind of problem this part solves.”
Easy Installation for Your 1998-1999 Savana 2500 PCM
Because we handle all the programming, you won’t need any specialized tools or a trip to the dealership. This is a true plug-and-play repair you can do in your own driveway.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting.
- Locate the PCM: On most of these GM trucks and vans, the PCM is located in the engine compartment, typically on the driver’s side inner fender or near the battery.
- Disconnect the Old Module: Carefully unplug the electrical connectors. They have locking tabs that may need to be squeezed or lifted to release.
- Install the New PCM: Mount your new, pre-programmed module in the same location and securely plug in the connectors. You should hear a click as they lock into place.
- Reconnect the Battery: Attach the negative battery terminal. Your vehicle is now ready to start.
Guaranteed Compatibility & Fitment
This module is a direct replacement for a wide range of GM vehicles and interchanges with several part numbers. Please verify your original part number or use the fitment list below to confirm compatibility.
Replaces Part Numbers: 09355699, 16266645, 16250279, 16258815, 09366810, 9366810
This Part Will Fit These Makes and Models:
This Electronic Control Module (ID 9355699) fits a wide variety of 1998-1999 GM Trucks, Vans, and SUVs including Chevrolet Express, GMC Savana, Chevy/GMC Pickups (1500, 2500, 3500), Tahoe, Yukon, Suburban, Escalade, S10/Sonoma, Blazer/Jimmy, and more. Please refer to the detailed fitment data provided in the original listing to ensure it matches your specific vehicle and options.