Is Your 2004 GM Truck or SUV Running Rough?
Dealing with erratic engine behavior, poor fuel economy, or a check engine light that won’t quit can be incredibly frustrating, especially when you depend on your vehicle every day. A failing Powertrain Control Module (PCM), the brain of your vehicle’s engine, is often the culprit behind these stubborn issues. This isn’t just an inconvenience; it’s a problem that affects your vehicle’s reliability and performance. Get your truck or SUV back to its dependable self with this direct-fit, VIN-programmed 2004 GM PCM 12586242.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause:
- Check Engine Light with communication error codes (like U0100)
- Engine stalling, misfiring, or running rough
- Harsh or incorrect automatic transmission shifting
- Reduced power and poor fuel efficiency
- Vehicle won’t start, despite a good battery and starter
This module is the definitive solution. We program it with the latest GM software updates using your vehicle’s specific VIN. This ensures that when it arrives, it’s ready to communicate perfectly with your engine, transmission, and all related systems, restoring the smooth operation you expect from your vehicle.
Features & Benefits
- โ VIN-Programmed for Your Vehicle: We flash the module with your truck’s unique VIN, ensuring it’s a true plug-and-play solution. No expensive trips to the dealer for programming are required.
- โ Loaded with Latest GM Updates: Your computer arrives with the most current factory software, correcting known bugs and optimizing engine and transmission performance for peak efficiency and power.
- โ Restores Peak Performance: A properly functioning PCM corrects issues with fuel mixture, spark timing, and transmission shifting, bringing back the power and reliability you’ve been missing.
- โ Direct OEM Fitment: This unit is a direct replacement for service number 12586242 and a wide range of other compatible part numbers, guaranteeing a perfect fit and connection.
- โ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
Many people are tempted to grab a used computer from a salvage yard, but this often leads to more problems. A module from another vehicle is like a key for a different houseโit simply won’t work. It contains the wrong VIN, security information, and specific settings for another vehicle’s options. Our professional programming service eliminates this guesswork. We ensure the 2004 GM PCM 12586242 you receive is a perfect digital match for your vehicle, saving you from installation headaches, communication errors, and a no-start situation.
This is more than just a part; it’s a comprehensive solution to get your vehicle running right. By providing us with your VIN upon purchase, you ensure that the heart of your vehicle’s electronics is perfectly matched and ready for installation. Take control of your repair and get your dependable GM truck or SUV back on the road. This 2004 GM PCM 12586242 is the right choice for a lasting fix.
Frequently Asked Questions
Is this computer ready to install when it arrives?
Yes. We pre-program the module using the VIN you provide, so it is ready to be installed. In most cases, you will only need to perform a simple security relearn procedure, which can be done without any special tools and takes about 30 minutes. We include instructions for this process.
How do I find my original part number?
Your vehicle’s original part number is printed on a sticker on the PCM itself. This module replaces service number 12586242 and the other numbers listed in the description. Matching one of these numbers ensures compatibility.
What information do you need from me?
After you complete your purchase, you will need to send us your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the computer correctly for your specific vehicle configuration.
Will this fix my check engine light?
If the check engine light is caused by a failing PCM or related communication errors, this part will resolve the issue. It is always important to properly diagnose the codes before ordering to ensure the PCM is the root cause of the problem.
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is the main computer that controls your vehicle’s engine and transmission. It manages critical functions like fuel injection, ignition timing, and transmission shift points to ensure optimal performance, fuel economy, and emissions.
What does the one-year replacement warranty cover?
The warranty covers any defects in the module itself. If the unit fails within one year of the purchase date, we will provide a replacement part. This gives you confidence in the quality and reliability of your purchase.