When your vehicle suddenly faces difficulty to start, and you already have a dead battery, then the reason may be a faulty ECM part or engine computer. The Engine Control Module or the ECM is one of the truck's vital component, and some mechanics refer to it as the "brain" of the vehicle. This part controls other systems like the power control module, engine timing, ignition, and other essential engine functions. When this truck part stops functioning normally, it is essential to fix the issue as soon as possible.

Symptoms That Your Truck ECM Is Not Working Properly

Hopefully, you have discovered the failure of the ECM as your vehicle is facing problems to start. When an ECM fails to work, it will not show any sign of alert. In this blog, you will know the signs of ECM failure and the benefits of ECM repair or ECM replacement.

As ECMs are electrical diesel truck parts, not mechanical units, many experts overlook the problems related to them. It will further lead to costly repairs with owners spending too much money on repairs while the issues continue to persist.

As Vehicle Fails To Start, Here Are Some Subtle Signs That Show ECM Is Not Functioning:

1. Engine Is Stalling Or Misfiring

Okay, this sign is not subtle at all. But, it indicates that there is a problem in engine timing which is controlled by ECM

2. Low Performance

If a vehicle struggles to go uphill or faces issues to accelerate down, it can be for a problem with the ECM.

3. Reduced Fuel Efficiency

The ECM is partially responsible for controlling the vehicle's air ratio. If there is any change in the ratio, it will cause changes in gas mileage.

4. The Engine Light Is On

Though it is a weird one, anything can cause the engine light to turn on. However, there must be something that is causing light to activate.

Repairing of Engine Control Modules

Repairing of ECMs can be done in several ways. One of the easiest ways to repair an ECM is when there is a problem with the power supply. In most cases, this issue can be repaired by hiring a mechanic or electric technician to fix poor connections. However, the major issue with an ECM is due to a bug in the software. This incident is not so common; however, cases like power surges, short circuits and lightning strikes can damage the circuit board. It results in physical damage to the hardware part. In these cases, the ECM replacement is necessary. When there is a problem with ECM software functioning, it is better to seek help from the technician who repairs ECM.

Replacement Is a Better Choice for ECM

An ECM is not designed to be repaired by car owners; while there are several repairing centres and online sites available that provide services on diesel truck ECM repairing. The technician can understand whether an ECM needs repair or replacement.

Several companies also reprogram engine computers of trucks with the latest software updates and firmware. Whether you want to repair or replace ECM of your truck, it's better to consult with a technician.