Is Your 1999 Escalade or GM Truck Running Rough?
Are you dealing with a persistent Check Engine Light, erratic engine behavior, harsh shifting, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM). As the brain of your vehicle, when the PCM starts to go, it can cause a host of frustrating and difficult-to-diagnose problems. You don’t have to keep guessing or pay expensive dealership diagnostic fees. The solution is right here.
The Direct-Fit Solution: A Programmed PCM Ready for Installation
This is a reliable, tested, and ready-to-install PCM for a wide range of 1998 and 1999 GM trucks, vans, and SUVs. We take the guesswork and hassle out of the repair. Before we ship this module, we will program it with the latest GM-released software specifically for your vehicle using the VIN you provide. This ensures that all the specific parameters for your engine, transmission, and factory options are perfectly matched.
From the Shop Floor: A Real-World Scenario
A customer’s 1999 Tahoe came in last week with these exact symptomsโit would randomly stall at stoplights and occasionally refuse to start. The check engine light was on, but the codes were intermittent. After confirming the power and grounds to the PCM were solid, we knew the internal processor was failing. Swapping in a pre-programmed module like this one had the truck running perfectly in under 15 minutes. This isn’t just a part; it’s a proven fix I’ve performed hundreds of times on these GMT400 platform vehicles.
Why Choose Our Programmed 1999 Escalade PCM?
- โ VIN-Specific Programming: We flash the module with the newest GM software for your exact vehicle. This is not a generic, one-size-fits-all solution.
- โ Eliminate Common Failures: Solves issues like false sensor codes, poor fuel economy, transmission shifting problems, and stalling.
- โ Skip the Dealer: Avoid the high costs and scheduling delays of dealership programming. This module is ready to install right out of the box.
- โ Guaranteed Compatibility: This unit directly replaces part number 9355699 and several other compatible service numbers like 16266645 and 16250279.
- โ Cost-Effective Repair: Get your truck back on the road with a dependable, tested component without the price tag of a new module.
Plug-and-Play Installation: No Dealer Visit Required
You can do this job yourself with basic hand tools. Hereโs a simple guide to get you started:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the PCM: On most of these trucks and SUVs, including the Escalade, the PCM is located in the engine bay on the driver’s side, near the fender or firewall.
- Disconnect the Connectors: Carefully unclip the wiring harness connectors from the old module. Inspect the pins for any corrosion or damage.
- Swap the Module: Unbolt the old PCM and secure the new one in its place.
- Reconnect Everything: Plug the wiring harnesses firmly into your new PCM and reconnect the negative battery terminal.
- Final Check: Start the vehicle. The check engine light should be off, and your truck should be running smoothly.
After your purchase, simply send us a message with your vehicle’s 17-digit VIN, and we’ll handle the programming. Get your GM truck or SUV running like it should again with a reliable, professionally programmed PCM.