Restore Peak Performance to Your Classic GM Truck or Van
Is your trusty 1997 GM vehicle feeling its age? If you’re battling frustrating issues like a persistent check engine light, rough idling, stalling, or erratic shifting, the problem often lies deep within its electronic heart: the Powertrain Control Module. This isn’t just a component; it’s the brain of your engine. When it fails, it can feel like you’re losing a reliable old friend. We’re here to help you bring that dependable performance back with a fully programmed, ready-to-install engine computer.
This module is meticulously prepared for your specific vehicle. We take your VIN and flash the unit with the latest, most stable software updates directly from GM. This eliminates the need for expensive dealership visits or complicated programming tools. It’s a straightforward solution designed to get you back on the road with confidence and peace of mind.
Warning Signs and How to Overcome Them
A failing PCM can manifest in confusing ways. Here are common symptoms and the benefits you’ll experience with this replacement:
- ✔ Eliminate Stalling & No-Start Conditions: Regain the confidence that your vehicle will start every time you turn the key.
- ✔ Smooth & Consistent Engine Operation: Say goodbye to rough idling, hesitation, and poor acceleration for a smoother, more enjoyable drive.
- ✔ Improved Fuel Economy: A properly functioning PCM ensures the correct air-fuel mixture, helping restore your vehicle’s original MPG.
- ✔ Clear Stubborn Fault Codes: This module is a direct solution for internal module errors, such as DTC P0601 (Internal Control Module Memory Check Sum Error) or P0605 (Internal Control Module ROM Error).
- ✔ Correct Transmission Shifting: Resolves issues with harsh or delayed shifting by restoring proper communication between the engine and transmission.
An Old Workhorse Reborn
“I had a customer with a ’97 Savana work van, loaded with tools and memories. It started running so poorly he was ready to scrap it. He was frustrated, thinking the repair would cost more than the van was worth. We traced it to a faulty computer. After installing one of our pre-programmed modules, the van fired up and idled smoother than it had in years. The relief on his face was incredible—he wasn’t just getting his van back; he was saving his livelihood. That’s the power of a solid, reliable repair.”
Effortless Steps for a Confident Fix
Installing your new 1997 Astro PCM is a manageable project for a DIYer with basic tools. Follow these steps for a successful replacement:
- Safety First: Always begin by disconnecting the negative terminal on your vehicle’s battery to prevent any electrical shorts.
- Locate the Old Module: On most of these vehicles, the PCM is located in the engine bay, typically on the driver’s side near the battery or firewall.
- Careful Disconnection: Gently unclip and remove the wiring harnesses. They can be brittle, so take your time. Then, unbolt the module from its mounting bracket.
- Install the New Heart: Mount your new, pre-programmed PCM securely in place. Reconnect the wiring harnesses, ensuring they click firmly into position.
- Reconnect & Verify: Reattach the negative battery terminal. Turn the key to the ‘On’ position for 10 seconds before starting the engine. This allows the system to recognize the new module. Start your vehicle and enjoy its restored performance!
Tailored Fit for Your Ride
This module is a direct replacement for part numbers 16229684 and 8162296840 and is guaranteed to be compatible with the following 1997 models:
- Astro
- Blazer S10/Jimmy S15 (4.3L)
- Bravada (4.3L)
- Chevrolet 1500/2500/3500 Pickup (Gasoline)
- Express 1500/2500/3500 Van (Gasoline)
- GMC 1500/2500/3500 Pickup (Gasoline)
- Isuzu Hombre (4.3L)
- S10/S15/Sonoma (4.3L)
- Safari
- Savana 1500/2500/3500 Van (Gasoline)
- Suburban 1500/2500 (Gasoline)
- Tahoe/Yukon (Gasoline)
Don’t let a faulty computer sideline your vehicle. This programmed 1997 Astro PCM is the definitive solution for restoring the reliability and performance you depend on. Order today and get back behind the wheel with confidence.
Frequently Asked Questions
Is this module truly plug-and-play?
Yes! We program the module using the VIN you provide, loading it with the correct software for your vehicle’s specific configuration. This means no additional programming is required upon installation. In some vehicles with advanced anti-theft systems (Passlock/VATS), a simple key relearn procedure may be necessary, which takes about 30 minutes and does not require any special tools.
How do I send you my VIN?
After you complete your purchase, you will receive an email with instructions, or you can simply add your 17-digit VIN in the notes section during checkout. We cannot ship your part until we have this information.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls both engine functions and transmission shift points. If the module is failing, it can cause erratic shifting, hesitation, or getting stuck in one gear. Replacing a faulty PCM often resolves these communication-based transmission issues.
What if my original part number is slightly different?
The part number 16229684 is the primary service number, but it often supersedes other numbers. As long as your vehicle’s year, make, and model are on our compatibility list, this module will be the correct replacement, programmed specifically for your VIN.
Do I need to return my old PCM (core)?
There is no core charge or requirement to return your old module for this particular part. You can keep your old one or recycle it locally.