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Could be your electric fuel pump in gas tank. you can check it by turning the key on and take gas cap off and have someone to check to see if their is a noise saying the fuel pump is working. someone has to stand by where you put gas in your car and put their ear to the hole an listen when you turn key on, do not start the car just turn the key on and if they hear a noise like a pump running then your electric fuel pump is okay, but if don't hear a noise then your electric fuel pump is not working. it is hard to explain about the noise you will hear, but as long as they hear something when you turn key on and their ear is at the opening they will know what I am talking about. I've done 4 electric fuel pumps in gas tanks on different vehicles. good luck ! would like to know if you could hear the pump running when you turned the key on with the gas cap off.
No. it wouldn't keep it from starting. If the engine cranks but won't start, probably gas or spark (ignition) related. Do you hear the fuel pump in the tank turn on for a couple of seconds, when turning key to on, not start? If you cannot hear the pump, better check if you are getting gas up to the engine. Maybe the fuel pump quit, or the pump circuit needs looked at. The pump should briefly turn on with key on to pressurize the fuel system-the fuel line and the fuel rail where the injectors are. Then the pump will turn off, and only come back on again when the engine is cranking, and stay on when running.
Correct fuel pressure is important for easy starting, and good engine performance. Have the fuel pressure checked against the specification for your vehicle. If fuel pressure is good, check the ignition system-check for spark.
It wont start after putting in new fuel pump was that the actual problem to begin with. how about a fuse can you hear the new pump when you turn key to on (not start) if not then check electrical connections fuse, relay, cam sensor, crank sensor. do that in order i listed it as the last part of that is probally not the problem also is there a fuel shut off valve in this car if so try resetting it.
yeah, try starter fluid just to verify if it;s fuel or spark related. If it starts or tries to, then it's a fuel problem. You should be able to hear your pump turn on, when you turn key on, may need to stand by tank, when someone turns key on. it should activate for about 2 seconds, with key on.(that's to pressurize your system with gas) then when cranking, the pump should run(may not hear it then-so just listen when key is initially turned on. No noise: your pump may not be working. If you can hear the pump, it may be another issue.
check your fuel pump or your relay that controls the fuel pump if it turns over but cranks and cranks it's possible you aren't receiving gas . When you turn the key on you should hear the fuel pump pressurise if not i would check it first.
DISCONNECT YOUR BATTERY AND RECONNECT, THIS SHOULD RESET THE BRAIN.
ALSO...WHEN YOU TURN THE KEY, LISTEN TO HEAR IF YOU CAN HEAR THE FUEL PUMP COME ON...IF NOT, GUESS WHAT? HOPEFULLY NOT!... BUT,YOU MAY NEED TO REPLACE THE FUEL PUMP, IF YOU CAN'T HEAR IT WHEN YOU TURN THE KEY, AFTER YOU'VE RESET THE BATTERY!
do you mean the truck won`t start and run or do you mean it won`t turn over with the key.if it won`t turn over with the key the you may have a starter problem.if you mean won`t start then it could be the fuel pump not working.with someone cranking the motor you should hear the fuel pump running with the gas cap off and listening at the filler neck.or hear it running listening under the truck at the gas tank.if you don`t hear it then you can hit the tack sharply with your hand or a rubber hammer,it hear the pump start to run then the fuel pump needs replacing.if not check the fuses under the dash and under the hood.if they are good then it may be the pump relay in the relay box under the hood and it should be marked on the box or lid.
If you turn on the key, and hear the sound of the pump for a few sec then stop before turning the key to ignition position, then fuel pump is still working. However, you need some one hear the pump running while you starting the car. The pump is located below the rear seat on passenger side. If no sound heard while you start then there is a problem with the Fuel relay switch behind the battery and firewall.
If there is sound from the pump then the car needs to have fuel delivery rate checked and fuel filter for possible replacement.
sounds like a fuel pump problem. take off gas cap and have someone sit in the truck and turn iginition key to on. (do not turn key as if you were starting but to "on only") you should hear the fuel pump engage. if you dont hear the fuel pump then check the fuel pump relay. it is located behind the glove compartment. hope this helps...