I need to know under the hood where the fuel pump relay is would that be whats maken the car shut off going down the rd then a few mins it will pick back up?

The fuel pump relay is a small unit covered in a plastic case, which has several sprockets on one side that are clipped onto the ignition system. The fuel pump relay is what turns on the fuel pump when you start your car and powers it down when you shut off the ignition.

The engine control module (ECM) uses the fuel pump relay to control when the fuel pump is on. The fuel pump relay supplies electricity to power up and power down the fuel pump.

It's located in different places on different cars. It could be under the hood, on the firewall, on one of the fender covers or near the steering column, to name a few locations. As for a Nissan Terra (Nissan Terra ?????), it is often found in the fuse box located in the engine bay.

When you turn the key in the ignition forward to crank the car, the "start cycle" begins and fuel pump relay is engaged long enough to turn on the fuel pump. It shuts off again when the engine is running. Once the engine is running, the fuel pump relay shuts off, and the current for the fuel pump is supplied by the oil pressure sending unit. The other time the fuel pump relay is engaged is when you shut off the ignition. It engages long enough to shut off your fuel pump.

There is a fuel shut off switch (inertia fuel shut off-opens on impact) in the wiring between the fuel pump relay (in the under-hood fuse/relay box) and the gas tank. It may have opened. I don't know where it is located, it may be behind a kick panel under the dash. You may have to ask someone where it is.

The fuel pump fuse is a 20amp fuse, also in the engine compartment fuse/relay box. This fuse and it's wire is the power feed for the fuel pump relay.

My cars relay fuel and fan were stolen by a guy was fixing my door. Right?????? So caused my car to be jumped started then hesitate and stop when trying to drive alternator fuse was all tore up cause the jerk didnt know you needed to unscrew it from the bottom. So he cracked it. I am going to pick up the pricy relays today let you know what happens

Under the hood in the fuse box

What were the codes that you based your replacement parts upon? There are few shutdown codes but the obvious ones are vehicle theft detected, collision(air-bag deployed, or roll-over with gas shut-off). 3 fuel pump replacements might mean blocked fuel due to gas tank contaminants, restricted fuel lines(main or return), dirty fuel filter. When it shuts down what are the symptoms? Have you replaced the main and fuel pump relays? What was wrong with the replaced fuel pumps?

the fuel pump fuse and relay should be in under hood fuse box. the reason why it will not start when hot or run the fuel pump. is the fuel pump relay, is getting hot and shuting off fuel pump. good-day !

Hi :) The fuel pump relay is an integral part of the body control module it also houses the Fan relay this module is about 6"x4"x2" and has gobs of wires coming out of it, the module is mounted on a bracket under the hood that is bolted to the top of the driver's side front strut.

You say the jeep won't crank-----do you just mean it won't start, but the engine does spin when cranking the starter motor? Have you had the trouble codes read from the ECU? Do you have spark at the plug wires? It could also be the crank sensor on your jeep that's bad.
If your ECU has gone bad, it won't send a signal to the fuel pump relay to turn on, so no fuel pressure. Just a few suggestions.

sounds like fuel pump relay. next time it want start pull the ecm bat fuse for a few seconds see if it will crank then. knock sensor will not cause this. ecm bat fuse it works the fuel pump relay,fuel pump,injectors,ignition system an the pcm. also the oil pressure switch will shut down the fuel pump if oil pressure drops below recommended pressure . check the connectors on these things that not loose or corrioded.i think you will find the fuel pump relay is what this relay is the problem. this relay maybe in dash or under hood in the relay box.

You need to figure out which one you are losing. You are either losing fuel, or spark. When the engine quits, immediately open the hood, and check for spark. Let us know what you find. Good luck!