What to do if your fuel pump wont turn on?

What to do if your fuel pump wont turn on?

First check fuse 48, a 15 amp, in the under-hood fuse box. Next, remove the fuel pump relay from that box and check for voltage on the terminals in the socket. Two of them must have 12 volts when the ignition switch is on. If that’s what you find, try swapping that relay with a different one like it, then see if the pump turns on.

Can a fuel pump run with the ignition switch on?

The fuel pump had better not run with just the ignition switch turned on. To do so would pose a serious fire hazard if a fuel line got ruptured in a crash. The pump should only run for one or two seconds after you turn on the ignition switch to insure pressure is up for starting.

Where is the fuel pump relay located in a Nissan?

– IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block which were originally placed in engine compartment.

What happens if the fuel pump relay fails?

The fuel pump relay is part of a power module under the hood. In that module are several relays but the bad news is they are not serviceable as the entire module has to be replaced if the fuel pump relay has failed.

Why did my Nissan truck not start up?

My truck would not start, I had Nissan diagnose it and was told that the the fuel pump was bad. I pulled the fuel pump and hooked the new pump to the wiring harness and it is not doing anything. Usually, I thought, that after the key was turned on, the fuel pump would engage. This is not happening. I checked the fuse, fuse is ok.

First check fuse 48, a 15 amp, in the under-hood fuse box. Next, remove the fuel pump relay from that box and check for voltage on the terminals in the socket. Two of them must have 12 volts when the ignition switch is on. If that’s what you find, try swapping that relay with a different one like it, then see if the pump turns on.

– IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block which were originally placed in engine compartment.

The fuel pump had better not run with just the ignition switch turned on. To do so would pose a serious fire hazard if a fuel line got ruptured in a crash. The pump should only run for one or two seconds after you turn on the ignition switch to insure pressure is up for starting.

The fuel pump relay is part of a power module under the hood. In that module are several relays but the bad news is they are not serviceable as the entire module has to be replaced if the fuel pump relay has failed.