What is the fuel pump relay switch on a 2001 Montero?

The fuel pump relay switch on your 2001 Montero Sport is an electrical component that powers the fuel pump. The relay essentially tells the fuel pump to engage when it receives an electric spark from the ignition switch when you turn on the ignition. Sometimes, like when your Montero gets bumped hard, the fuel pump cut-off switch can be triggered.

Where is the fuel pump relay located on a car?

The fuel pump relay is an electronic component that is found on virtually all vehicles equipped with an internal combustion engine. It is often found in the fuse box located in the engine bay and functions as the primary electronic switch that controls power to the fuel pump. The fuel pump relay is usually controlled by…

What happens if a Mitsubishi Montero fuel pump fails?

If not, then either the fuel pump has failed or there is a problem in the wiring going to it. Since the fuel pump relay does not have fused power, there is no possibility of a blown fuse. How to confirm the fuel pump of a Mitsubishi Montero Sport has failed?

Where is the relay panel on a Montero?

Open the hood of your Montero Sport and remove the negative battery cable with the socket set. Locate the main relay panel on the passenger side of the engine compartment, mounted on the front of the upper fender well. Remove the lid to the relay panel by prying it up and off.

What happens when the fuel pump relay fails?

If the fuel pump now operates when the engine cranks, then the relay has failed internally. If not, then either the fuel pump has failed or there is a problem in the wiring going to it. Since the fuel pump relay does not have fused power, there is no possibility of a blown fuse. How to confirm the fuel pump of a Mitsubishi Montero Sport has failed?

How do you replace a fuel pump relay?

Remove the lid to the relay panel by prying it up and off. Examine the relay diagram and locate the fuel pump relay on the diagram. Remove the fuel pump diagram. Unplug it and allow it to stay unplugged for about a minute. Then plug it back in and replace the relay panel cover. Replace the negative battery cable.

Where are the relays on a Mitsubishi fuel pump?

They are located in the relay group in the dash. The first relay is located in the bottom corner of the group and the second one should be to the right of it with one blank space in between them. (It is common for these relays to be wrongly re-installed after diagnostics checks are done.

When is the fuel pump relay turned on?

The fuel pump relay is activated whenever the ignition is turned on. A fuel pump relay functions primarily to maintain a consistent voltage supply to the fuel pump. The ignition or powertrain control module (PCM) usually controls the fuel pump relay.

Is the fuel pump relay controlled by the PCM?

Consequently, the fuel pump relay is usually controlled by, the ignition or powertrain control module (PCM). As a result, when switched on, the fuel pump relay; will provide current to the fuel pump, so that it may function. Therefore, any faults with it, can cause fuel pump issues.

Where is the fuel pump located on the Mitsubishi Challenger?

Remove the high pressure fuel hose at the body-side main pipe connection, unfasten the pump-side connection. Wrap each joint in a rag before loosening; some pressure may remain within the system. Remove the fuel pump retaining nuts and carefully remove the pump from the tank. The fuel pump may still contain liquid fuel.