Restore Peak Performance to Your Truck’s Engine
Is your Isuzu Hombre, Chevy S10, GMC Sonoma, or another compatible GM truck suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM) is often the culprit behind a wide range of problems, from a persistent Check Engine Light to poor fuel economy and even a no-start condition. This vital component is the brain of your vehicle’s engine, managing everything from fuel mixture and ignition timing to transmission shift points. When it fails, the entire system suffers. This replacement PCM is the definitive solution to restore your vehicle’s reliability and drivability.
This isn’t just a generic, off-the-shelf part. We provide a fully programmed module specific to your vehicle. After your purchase, simply provide us with your vehicle’s VIN (Vehicle Identification Number). Our technicians will then flash the module with the latest, most stable software updates directly from GM. This ensures perfect compatibility and optimal performance, eliminating the need for an expensive trip to the dealership for programming. It’s a true plug-and-play solution designed to get you back on the road quickly and confidently.
From the Diagnostic Bay
We had a 1999 GMC Jimmy come into the shop with a ghost of a problem. The owner complained of random stalling at stoplights and a harsh 1-2 shift that came and went. We couldn’t find any vacuum leaks, the fuel pressure was solid, and the sensors all tested fine. After hours of chasing wires, we decided to inspect the PCM. We noticed a tiny amount of corrosion on one of the pins. Swapping in a VIN-programmed module like this one solved everything instantly. The idle smoothed out, the transmission shifted like new, and the stalling issue vanished. Sometimes, the most complex problems have a straightforward, central solution.
Is Your Vehicle Showing Signs of a Failing PCM?
A failing 1998-2000 Isuzu Hombre PCM can manifest in various ways, often mimicking other component failures. If you’re experiencing any of the following symptoms, a faulty engine computer is a likely cause. Replacing it can resolve these persistent issues and prevent further damage to your engine or transmission.
- ✔ Check Engine Light: The light is on, and you may have codes related to module communication, sensor circuits, or processor faults.
- ✔ Poor Fuel Economy: The engine isn’t receiving the correct data for fuel mixture, causing it to run rich and waste gas.
- ✔ Rough Idle or Stalling: Inconsistent signals from the PCM can cause the engine to run erratically or shut off unexpectedly.
- ✔ Failed Emissions Test: Improper engine management will lead to high emissions and a failed smog check.
- ✔ Harsh or Erratic Shifting: The PCM plays a crucial role in controlling automatic transmission behavior.
- ✔ Engine Misfires: Incorrect ignition timing signals can lead to misfires and a loss of power.
- ✔ No-Start Condition: In severe cases, a complete PCM failure can prevent the vehicle from starting at all.
A Simple, Reliable Solution
Don’t let a faulty computer keep your reliable truck off the road. This module is a direct-fit replacement for a wide array of GM vehicles, including the Chevrolet Blazer, GMC Safari, Chevy Express Van, and many more. It is built to meet or exceed original equipment specifications. By providing us with your VIN, you guarantee that the module you receive is perfectly matched to your vehicle’s specific configuration, including engine size, transmission type, and emissions equipment. This critical step ensures all systems communicate correctly, just as the manufacturer intended.
This unit is a direct replacement for multiple part numbers, including 16263494, 16265035, and 8162634940. Please verify the part number on your original module or consult our extensive fitment list to confirm compatibility.
Frequently Asked Questions
Do I need to get this PCM programmed by a dealer?
No. This module comes fully programmed to your vehicle’s specific VIN before we ship it. It is ready for installation right out of the box, saving you time and money.
What information do you need from me?
After you place your order, we will require your 17-digit Vehicle Identification Number (VIN). This allows us to flash the module with the correct GM software for your truck’s exact build.
Where is the PCM located on my vehicle?
Location varies by model. On many S-series trucks and SUVs (S10, Blazer, Hombre), it’s in the engine compartment on the passenger side. On Express/Savana vans, it’s often in the LH rear of the engine compartment. Always disconnect the battery before removal and installation.
Will this fix my check engine light?
If the check engine light and associated codes are caused by a faulty PCM, this replacement will resolve the issue. We recommend clearing all diagnostic trouble codes with a scan tool after installation.
Is this compatible with part number 16263494?
Yes, this module is a direct, compatible replacement for OEM part numbers 16263494, 16265035, 8162634940, and 218-11787.