2003 Chevrolet Blazer PCM – Guaranteed OEM Replacement for 4.3LÂ
This Engine Computer, also known as the Engine Control Module (ECM), Engine Control Unit (ECU), or Powertrain Control Module (PCM), is a guaranteed replacement for all 2003 Chevrolet Blazer models with a 4.3L engine.
The following part numbers are compatible and interchangeable with this OEM unit:
- 12570557, 12570558, 12575502, 12576106, 12576869, 12578127, 12579403, 12579404, 12579406, 12580788, 12581565, 89017733, 8125781270 & 8125815650
Ready to Install
Receive your 2003 Chevrolet Blazer ECM, PCM, or ECU pre-programmed with your Vehicle Identification Number (VIN) and the latest software updates for optimal performance right from the start. Our meticulous programming process ensures your PCM will integrate seamlessly with your vehicle’s systems.
Simplified Installation
Designed for hassle-free installation, our units ensure your 2003 Chevrolet Blazer ECU is ready to perform without further adjustments. Vehicles with a Passive Anti-Theft System (PATS) or computer chip keys may require key reprogramming at a locksmith or dealership. If your vehicle doesn’t have PATS, installation is straightforward and plug-and-play.
Authentic OEM Quality
Trust in the reliability of an authentic OEM computer for your 2003 Chevrolet Blazer 4.3L. Our products are rebuilt to meet or exceed original manufacturer specifications for durability and performance. Each ECM undergoes rigorous testing to ensure it meets the highest standards set by the manufacturer.
Quality Control and Testing
- Comprehensive Refurbishment: Each 2003 Chevrolet Blazer ECM is meticulously rebuilt, programmed, and tested to meet OEM standards. This process includes cleaning, inspection, and replacing faulty components.
- Stringent Testing: Certified technicians test each ECU to ensure it addresses common issues such as:
- Electrical Problems: Ensures smooth management of your vehicle’s electrical system.
- Startup Failures: Fixes issues related to engine startup.
- Diagnostic Trouble Codes: Eliminates incorrect error codes and ensures accurate monitoring of engine parameters.
- Intermittent Starting Issues: Corrects sporadic engine start problems.
- Loss of Power: Restores engine power by addressing ECM malfunctions.
- No Ignition or Injector Pulse: Ensures proper signals for engine operation.
- Poor Fuel Economy: Solves inefficient fuel usage issues.
- Shifting Problems: Manages smooth transmission shifts, preventing erratic behavior.
Why Choose Us?
- Industry’s Lowest Prices
- FREE Lifetime Warranty
- FREE Domestic Shipping with quick turnaround times
- No Core Charge or Return Required – Keep your old unit!
- Guaranteed OEM Products – Refurbished and 100% Tested
- Latest Software Updates Included
- Plug & Play – No additional programming needed
- ASE Certified In-House Technicians
- Readily Available Support via email, phone, and live chat
- Google Verified Merchant – Over 1500+ 5-Star Reviews ★★★★★
How It Works
- Place Your Order: Choose the correct year, make, and model for your 2003 Chevrolet Blazer PCM and complete your purchase. Have your VIN ready.
- Provide Vehicle Information: After your purchase, we’ll reach out to collect your VIN and any additional details required for programming.
- Expert Programming: Our ASE-certified technicians will program your PCM with the latest software and your vehicle’s VIN for guaranteed compatibility and optimal performance.
- Quality Assurance: Every PCM undergoes extensive testing to ensure functionality.
- Secure Packaging & Shipping: Your PCM will be securely packaged and shipped for free within the U.S.
Core Return (Optional)
While returning your old PCM is not required, you may use the provided return envelope to send it back. This helps maintain our stock of rebuildable units and activates your lifetime warranty.
Frequently Asked Questions
- Warranty Activation: To activate your lifetime warranty, send your old PCM back using the provided return envelope.
- Repair Services: We offer specialized repair services for 2003 Chevrolet Blazer PCMs. Contact us for eligibility and details.
- Returns: Parts can be returned within 30 days for a refund or exchange, provided they are in their original condition.
- Shipping Time: Orders are shipped within 3-5 business days after receiving vehicle details.
- Payment Methods: We accept Visa, Mastercard, American Express, and Discover.
For more information or to place an order for your 2003 Chevrolet Blazer ECM, contact us at admin@cliffordautoparts.com or call (516) 494-7838.