Restore Your Van’s Performance and Reliability
Is your 1997 Chevrolet Express 2500 Van giving you headaches? If you’re dealing with frustrating issues like stalling at stoplights, poor fuel economy, a persistent Check Engine Light, or a no-start condition that leaves you stranded, a failing Powertrain Control Module (PCM) is often the culprit. As the central computer for your engine and transmission, its health is critical. This replacement PCM, part number 16229684, is the definitive solution to get your workhorse van or truck running smoothly again.
We take the guesswork and extra expense out of the repair. Unlike sourcing a module from a salvage yard, this unit comes professionally programmed to your vehicle’s specific Vehicle Identification Number (VIN). Just provide us with your VIN after purchase, and we’ll load the latest GM software updates before it even leaves our facility. This ensures perfect communication with all your vehicle’s systems, right out of the box.
A Technician’s Notebook: The Intermittent No-Start
I remember a 1997 GMC Savana—a sister vehicle to the Express—that came into my bay with a classic ghost problem. The owner said it would randomly refuse to start, but only after it was warm. No codes, no warning lights. We checked fuel pressure, spark, and battery, and everything looked perfect. On a hunch, I tapped the PCM with a screwdriver handle while my assistant cranked the engine. It fired right up. The vibrations were just enough to jostle a failing internal solder joint. A failing 1997 Express 2500 PCM can manifest in dozens of ways, but these intermittent electrical faults are some of the most common and frustrating to diagnose without experience. Replacing the module with a properly programmed unit solved the problem for good.
Key Benefits of This Pre-Programmed Module
- ✔ VIN-Specific Programming Included: We flash the module with the latest GM software using your VIN. This eliminates the need for an expensive trip to a dealership for programming.
- ✔ Direct-Fit Replacement: Engineered to be a direct replacement for OEM part numbers 16229684 and 8162296840.
- ✔ Solves Common Issues: Corrects problems like harsh shifting, engine misfires, erratic idling, and false sensor codes.
- ✔ Restores Functionality: A healthy PCM is essential for optimal engine performance, transmission control, and fuel efficiency.
Is Your Vehicle Showing These Symptoms?
A faulty PCM can cause a wide range of problems that might seem unrelated. If you’re experiencing any of the following, your module is the likely cause. This is especially true if you see diagnostic trouble codes (DTCs) like P0601, P0604, or P0606, which point directly to an internal module failure.
- ✔ Check Engine Light is on
- ✔ Engine is stalling or misfiring
- ✔ Vehicle won’t start or starts intermittently
- ✔ Noticeable drop in fuel economy
- ✔ Transmission is shifting erratically or harshly
- ✔ Failing a state emissions test
Plug-and-Play Installation: A Straightforward Guide
Installing your new 1997 Express 2500 PCM is a simple process that most DIYers can handle with basic tools. Since we program it beforehand, no special computer equipment is needed.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the PCM: On most 1997 GM vans and trucks, the PCM is located in the engine compartment on the driver’s side, often near the battery or firewall.
- Disconnect the Connectors: Carefully unplug the wiring harness connectors from the old module. There are typically release tabs that need to be pressed.
- Remove the Old Module: Unbolt the old PCM from its mounting bracket. Keep the hardware as you will reuse it.
- Install the New Module: Bolt your new, pre-programmed PCM into place. Re-attach the wiring harness connectors, ensuring they click securely into place.
- Reconnect the Battery: Re-attach the negative battery terminal. The vehicle may need to run for a few minutes to complete its internal relearn procedures.
Verified Vehicle Compatibility
This module is a guaranteed fit for a wide range of 1997 GM and Isuzu gasoline-powered vehicles. Please verify your vehicle is on this list before ordering.
BLAZER S10/JIMMY S15 97 (6-262, 4.3L)
BRAVADA 97 (6-262, 4.3L)
CHEVROLET 1500 PICKUP 97 (gasoline, LH front engine compartment)
CHEVROLET 2500 PICKUP 97 (gasoline, LH front engine compartment)
CHEVROLET 3500 PICKUP 97 (gasoline, LH front engine compartment)
EXPRESS 1500 VAN 97
EXPRESS 2500 VAN 97 (gasoline)
EXPRESS 3500 VAN 97 (gasoline)
GMC 1500 PICKUP 97 (gasoline, LH front engine compartment)
GMC 2500 PICKUP 97 (gasoline, LH front engine compartment)
GMC 3500 PICKUP 97 (gasoline, LH front engine compartment)
ISUZU HOMBRE 97 (4.3L, 6 cylinder)
S10/S15/SONOMA 97 (6-262, 4.3L)
SAFARI (GMC) 97 (LH front by battery)
SAVANA 1500 VAN 97
SAVANA 2500 VAN 97 (gasoline)
SAVANA 3500 VAN 97 (gasoline)
SUBURBAN 1500 97 (gasoline, LH front engine compartment)
SUBURBAN 2500 97 (gasoline, LH front engine compartment)
TAHOE 97 (gasoline, LH front engine compartment)
YUKON 97 (gasoline, LH front engine compartment)
Don’t let a faulty computer keep your reliable GM truck or van off the road. Order your pre-programmed 1997 Express 2500 PCM today and restore the dependable performance you rely on.
Frequently Asked Questions
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will receive an email with instructions on where to send your vehicle’s 17-digit VIN. You can also add it to the ‘notes’ section during checkout.
Is this a simple plug-and-play installation?
Yes! Because we program the module to your VIN before shipping, no further programming is required. Simply install the module, reconnect your battery, and you’re ready to go.
Will this fix my specific problem?
This PCM is a common solution for many electronic and performance-related issues, especially DTCs like P0601. While we cannot diagnose your vehicle remotely, a failing PCM is a very frequent cause for the symptoms listed above in these specific GM models.
What if I have a different part number on my old module?
This module is a direct replacement for part numbers 16229684 and 8162296840. As long as your vehicle is on the compatibility list, this module will function correctly once programmed to your VIN.
Does my vehicle need a security relearn procedure?
Most 1997 GM vehicles with the Passlock I/II system may require a simple security relearn. This procedure typically involves turning the key to the ‘ON’ position for 10-15 minutes and can be done without any special tools. Instructions are readily available online or in your service manual.