Restore Peak Performance to Your Cadillac
Is your 2004 Cadillac Escalade ESV running rough, stalling, or showing a persistent check engine light? These frustrating issues often point directly to a failing Powertrain Control Module (PCM), the central computer of your vehicle. Don’t let a faulty module compromise the luxury and reliability you expect. This direct-replacement engine computer is the definitive solution to restore your Escalade’s smooth operation and get you back on the road with confidence.
Common Symptoms & Your Solution
A failing ECM can cause a wide range of problems that can be difficult to diagnose. If you’re experiencing any of the following, a replacement 2004 Cadillac Escalade ESV Engine Computer is your most reliable fix:
- Unexpected stalling or engine hesitation
- Rough or erratic idling
- Noticeable decrease in fuel economy
- Failure to pass emissions tests
- Check Engine Light (CEL) with various trouble codes (DTCs)
- Vehicle won’t start, despite a good battery and starter
- Transmission shifting problems or harsh engagement
This unit is meticulously programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships, ensuring it works seamlessly with your Escalade’s systems right out of the box. We install the latest GM software updates, which can often resolve issues the original programming had from the factory.
Features & Benefits
- ✔ Plug & Play Installation: Arrives fully programmed to your VIN. No expensive trip to the dealership for flashing is required.
- ✔ Updated GM Software: Programmed with the newest factory updates to ensure optimal engine performance, fuel efficiency, and emissions control.
- ✔ Guaranteed Compatibility: A direct solution for service number 12586242 and a wide range of other compatible part numbers for GM trucks and SUVs.
- ✔ Solves Common Issues: The definitive fix for persistent running problems, from rough idling to no-start conditions.
- ✔ Restores Original Power: Get back the smooth acceleration and dependable performance you expect from your Cadillac.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming: In my 20+ years of vehicle diagnostics, I’ve seen countless issues arise from improperly matched control modules. A generic, unprogrammed unit can create more problems than it solves. That’s why we insist on programming each 2004 Cadillac Escalade ESV Engine Computer to your specific VIN. It’s not just about making the engine run; it’s about ensuring all integrated systems—from the transmission to the security system—communicate flawlessly, just as Cadillac intended. This is the key to a lasting, reliable repair.
Frequently Asked Questions
Do I need to do any programming or flashing myself?
Absolutely not. This computer comes fully programmed to your vehicle’s VIN. All you need to do is install it. In some cases, a security relearn procedure may be necessary, which is a simple process you can typically do yourself in about 15 minutes.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship your part until we have this information to program the module correctly.
Is this the correct computer for my vehicle?
This unit is a direct replacement for the 2004 Cadillac Escalade ESV Engine Computer and other GM vehicles listed in the fitment guide that use service number 12586242 or any of the other compatible numbers listed. Please match your part number to ensure compatibility.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM, this part will resolve the issue. However, it’s essential to ensure that the underlying cause is the computer itself and not a separate sensor or wiring problem. We always recommend a proper diagnosis before ordering.
What is a service number?
The service number is a specific identifier used by GM for their electronic parts. You can find it on the sticker of your original computer. Matching this number is a great way to confirm you are ordering the correct part.