Mack V-MAC II 12MS59M8 ECM | Repair

Original price was: $799.00.Current price is: $699.00.

Your Mack V-MAC II 12MS59M8 ECM | Repair Service will be returned fully reconditioned, tested, and ready to be installed back to the exact vehicle it came off, saving you the time & expense of having a new ECM programmed to your machine. We first diagnose the unit; if it’s not repairable or no problems are found, the cost is $200. In this case, we will process a partial refund for the difference.

Description

Mack V-MAC II 12MS59M8 ECM | Repair Service will be returned fully reconditioned, tested, and ready to be installed back to the exact vehicle it came off, saving you the time & expense of having a new ECM programmed to your machine.

Mack V-MAC II 12MS59M8 ECM | Repair Service

P/N: 12MS59M8

We first diagnose the unit; if it’s not repairable or no problems are found, it costs $200.

In this case, we will process a partial refund for the difference.

12MS59M8 ECM

The ECM (Engine Control Module) is a crucial component in a diesel engine’s operation. It acts as the brain of the engine, monitoring and controlling various parameters to ensure optimal performance, fuel efficiency, and emission levels. The ECM plays a significant role in managing fuel injection timing, turbocharger boost pressure, idle speed control, and troubleshooting diagnostic codes.

Now, let’s dive into the specifics of the Mack 12MS59M8 module:

Description: The Mack 12MS59M8 module is a specialized ECM used in certain Mack truck models. It is designed to control and optimize the performance of Mack diesel engines in terms of power output, fuel efficiency, and emissions compliance.

  1. Functionality: The 12MS59M8 module is primarily responsible for managing fuel injection timing, air-to-fuel ratio control, engine speed regulation, and emission control systems. It continuously monitors various engine parameters using input signals from sensors located throughout the engine.
  2. Troubleshooting: In case of any issues with the 12MS59M8 module, it is essential to follow proper diagnostic procedures to identify the root cause accurately. This may involve using specialized diagnostic tools, such as Mack’s dealer-level software or third-party diagnostic systems that are compatible with Mack engines.
  3. Repair and Maintenance: When repairing or maintaining the 12MS59M8 module, it is crucial to follow Mack’s recommended service procedures and guidelines. This may include inspecting and cleaning electrical connections, ensuring proper grounding, and replacing faulty components if required. It is generally recommended to have repairs done by experienced technicians familiar with Mack ECM systems.
  4. Software Updates: Like any electronic module, the 12MS59M8 module may require periodic software updates to address known issues, improve performance, or comply with new regulations. Mack dealerships or authorized service centers can assist with updating the ECM software using their specialized tools and database.
  5. Availability of Parts: In case any component of the 12MS59M8 module needs replacement, it is advisable to reach out to authorized Mack parts dealers or service centers. They can help source genuine Mack parts to ensure proper functioning and compatibility.

Common Problems

  • Blowing fuses
  • No communication
  • Engine shutting down
  • Fault codes in unit
  • Intermittent faults
  • Oil intrusion
  • Water damaged
  • Injector driver faults
Process

All you need to do is ship your unit to us, and we will diagnose the faults and ship the fixed unit back.

Why trust us

Our engineering team has over 15 years of experience, more than 10K repaired ECMs, and the latest simulation technology. We are always happy to assist you with any technical assistance we can. Feel free to contact us to discuss the faults you are experiencing before sending in your parts.

ECM Engineering USA / ECM Repair USA

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4 Steps

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Additional information

Weight160 oz
Dimensions11 × 14 × 7 in