Is Your Truck or Van Running Out of Ideas?
There’s nothing more frustrating than a reliable workhorse that suddenly won’t cooperate. If your Chevrolet, GMC, or Isuzu is suffering from a no-start condition, erratic shifting, a persistent check engine light, or stalling for no reason, the brain of your engine—the Powertrain Control Module (PCM)—is likely the culprit. Don’t let a faulty computer keep you off the road or sideline your business. This fully programmed, VIN-matched PCM is the definitive, hassle-free solution to restore your vehicle’s performance and reliability.
Common Symptoms of a Failing GM PCM & Your Solution
A failing engine computer can manifest in numerous ways, often mimicking other mechanical problems. If you’re experiencing any of the following, this module is the solution you need:
- Check Engine Light: Persistent illumination with codes related to module communication (U-codes), sensor circuits (P-codes), or processor failure.
- No-Start or Hard-Start: The engine cranks but refuses to fire up, or takes an excessive amount of time to start.
- Poor Performance & Fuel Economy: A noticeable drop in power, hesitation during acceleration, and more frequent trips to the gas pump.
- Erratic Automatic Transmission Shifting: Harsh shifts, delayed engagement, or getting stuck in one gear (limp mode).
- Intermittent Stalling: The engine randomly shuts off while driving or idling.
This unit is the direct answer to these problems. We take a reliable, salvaged OEM module and flash it with the latest official GM software updates, specifically programmed to your vehicle’s unique Vehicle Identification Number (VIN). This ensures your 1998 Chevy Astro PCM 16258815 or other compatible vehicle performs exactly as the factory intended.
Features & Benefits
- âś” Plug & Play Installation: Arrives pre-programmed to your specific VIN. No expensive dealership programming or special tools required.
- âś” Updated GM Software: We flash the unit with the newest calibrations from General Motors, ensuring optimal engine performance, fuel efficiency, and emissions compliance.
- âś” Cost-Effective Solution: Get the reliability of an OEM part without the high cost of a new module from the dealership.
- âś” Guaranteed Compatibility: This module is a direct replacement for a wide range of part numbers, including 09355699, 16266645, and 16250279, ensuring a perfect fit for your vehicle.
- âś” Solves Frustrating Issues: The most effective way to resolve complex electronic issues and restore smooth, dependable operation to your truck or van.
- âś” This unit is backed by our one-year replacement warranty.
An Expert’s Note on GM’s Passlock Security
As a technician with over two decades of experience, I’ve seen countless DIYers get stuck after installing a non-programmed computer in these late-90s GM vehicles. The issue is the Passlock anti-theft system. If the PCM isn’t correctly matched to the vehicle, the system will disable the fuel injectors, resulting in a frustrating crank-no-start situation. Our VIN programming service handles this critical step for you. Once installed, you may only need to perform a simple 10-minute key-cycle procedure to sync the module with your vehicle’s security system, saving you a tow to the shop and hundreds in diagnostic fees. We make a complex job simple.
By purchasing this 1998 Chevy Astro PCM 16258815, you are not just buying a part; you are investing in a complete, ready-to-install solution that gets your vehicle running right, the first time. Simply provide us with your VIN after purchase, and we’ll handle the complex programming before it ships. Get your trusted truck or van back on the road with confidence.
Frequently Asked Questions
Do I need to do any programming myself?
No. This PCM comes fully programmed to your vehicle’s VIN with the latest GM software updates. It is designed to be a plug-and-play solution. In some cases, a simple security relearn procedure (turning the key on and off) may be required, which takes about 10-15 minutes and requires no special tools.
What information do you need from me?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to program the module specifically for your vehicle’s engine, transmission, and options.
Is this a brand new part?
No, this is a high-quality, used OEM computer sourced from a salvaged vehicle. Each unit is thoroughly inspected and tested before being professionally programmed to ensure it meets or exceeds original factory performance standards.
Will this fix my check engine light?
If the check engine light and associated diagnostic trouble codes (DTCs) are being caused by a faulty PCM, then this part will resolve the issue. However, if the codes are for other failing components (like an oxygen sensor or EGR valve), those parts will still need to be addressed separately.
Is this compatible with other part numbers?
Yes, this computer is a direct replacement for several part numbers, including 09355699, 16266645, 9355699, 16250279, 09366810, and 9366810. If your original module has one of these numbers, this unit will work perfectly.
What if I have questions during installation?
Our team of experienced technicians is here to help. While we cannot diagnose issues on your vehicle remotely, we can provide guidance on the installation and security relearn procedure for your 1998 Chevy Astro PCM 16258815 to ensure a smooth process.