Can a fuel pump run with the ignition switch 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.

What causes a fuel pump to not start?

About 95 percent of cranks / no-starts are caused by a loss of spark AND fuel pressure and injector pulses. About one percent are caused by just no spark. The rest are caused by just the fuel delivery system, and it sounds like that’s what we have.

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 does my Nissan Titan have low fuel pressure?

The 2006 Titan came equipped with the same 305-horsepower, 5.6-liter V-8 engine that its debut model had and this engine, just as all internal combustion engines, requires a specific amount of fuel pressure to operate correctly. Low fuel pressure can cause rough idle, misfiring, reduced power or may cause the vehicle not to run at all.

Where is the fuel supply on a Nissan Titan?

Find where the fuel supply line connects to the Titan’s fuel rail inlet tube on the driver’s side of the engine and locate the cylinder-shaped plastic cover. Pull the cover upward to expose the connection point between the supply line and the fuel rail.

What kind of engine does a Nissan Titan have?

Its entry was the 5.6-liter-powered Titan, and with a name like that, Nissan was certainly calling its shot. The 2006 Titan came equipped with the same 305-horsepower, 5.6-liter V-8 engine that its debut model had and this engine, just as all internal combustion engines, requires a specific amount of fuel pressure to operate correctly.

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.