Is Your Chevy Express Van Running Rough?
If your 1999-2002 Express 1500 is suddenly stalling, idling erratically, or refusing to start, the problem often points directly to a failing Powertrain Control Module (PCM). As the brain of your vehicle’s engine and transmission, when the PCM starts to go, it can cause a host of frustrating and seemingly random issues. You might be seeing a check engine light with communication error codes, experiencing harsh shifting, or noticing a sudden drop in fuel economy. These aren’t just annoyances; they’re signs that your van’s central command center is compromised.
The Technician’s Perspective on GM PCM Failures
Over my 20+ years in the shop, I’ve replaced hundreds of these specific GM PCMs, especially the ones identified by part number 16263494. The constant heat cycles in the engine bay, combined with years of vibration, take a toll. What I typically find is that the internal circuit board develops microscopic cracks in the solder joints, leading to intermittent connections. One day the van runs fine, the next it won’t start. This inconsistency is a classic symptom of a PCM on its last legs.
Expert Pro Tip: Check the Basics First
Before you condemn the PCM, do yourself a favor and check the simple stuff. I’ve seen customers spend hundreds on unnecessary parts. Grab a multimeter and verify you have solid power and ground AT the PCM connectors. A corroded ground wire on the frame or a faulty ignition switch can mimic PCM failure perfectly. A 10-minute check can save you a massive headache.
The Direct-Fit, Programmed Solution
This isn’t just a replacement part; it’s a complete solution. We take a quality-tested, reliable Powertrain Control Module and program it specifically for YOUR vehicle using your VIN. This means it arrives at your door with the latest GM software updates already installed. You get the benefit of improved performance and efficiency corrections that GM released long after your van left the factory.
Ordering a programmed module from us eliminates the most expensive and inconvenient step of the repair: a trip to the dealership. There’s no need to have your van towed or pay a technician upwards of $150 just to flash the new computer. This module is prepared to integrate with your vehicle’s systems right out of the box.
Key Benefits of This Programmed PCM:
- โ Solves Common Issues: Directly addresses problems like no-start conditions, stalling, poor idle, check engine lights, and erratic transmission behavior.
- โ VIN-Programmed for You: We flash the module with your vehicle’s specific VIN and the newest GM software, ensuring perfect compatibility.
- โ No Dealer Visit Required: Save time and money by skipping the dealership’s programming service. This is a true DIY-friendly solution.
- โ Simple Installation: After installing the module, you’ll perform a simple security relearn procedure (often just a sequence of turning the key) to sync it with your anti-theft system. No special tools are needed.
- โ Broad Compatibility: This module, also known as part numbers 16263494, 16265035, and 8162634940, fits a wide range of GM trucks, vans, and SUVs from this era.
How It Works
The process is straightforward. After you complete your purchase, simply send us your vehicle’s 17-digit VIN. Our technicians will handle the programming, and we’ll ship the ready-to-install module directly to you. Restore your Express van’s reliability and get back on the road with confidence.