In most injected vehicles, the computer determines whether the engine is actually running or being cranked before engagning the fuel pump. Once the fuel is up to pressure many pumps are turned off. You'll need to find an electrical diagram of the vehicle, find the wire that powers the fuel pump and make certain that power isn't comming on briefly when you first turn on the key switch. The diagram will also help you identify the relay that runs the fuel pump and any other relevant information. Good luck. hers a hint that could help ya out..the inertia switch in trunk on left side behind covering is a relay.might need reseting or check to c if its getting power on both wires..it should ..also just behind front passenger headlight you'll see a large blackish module the fuel pump relay is integrated in that..there should be a data link connecter on firewall of passenger side you will see 6 point holes 2 on top 4 on bottom..looking at it with the 2holes on top your gonna want to ground the left one.with a jumper wire if the fuel pump starts to operate with it only being grounded by link connector your most likely defective component is the pcm..power control module..main computer of car.....dont forget to check fuel pump fuse and all main fuses in engine compartment.....when grounding the data link connecter all it does is bypass the pcm itself.and checks the whole fuel pump circuit..relays etc.fuses.so if it does work by doing that and only when doing that the pcm is defective.good luck
Yes this is a safety feature found on some cars that is an inertia switch. Power is cut to the fuel pump whenever the car is in an accident. You push the switch to reset it and restore power to the pump. There is also a fuel pump relay, that is sometimes called a switch, although it is not actually a switch. This relay closes and turns the fuel pump on when the ignition is turned on. It will stop the pump if the engine is not started.
check fuel cut off switch make sure its not triggered. check fuel pressure if none see if u hear fuel pump going on if not check for blowen fuse,check for power at fuel pump if u have power at fuel pump replace fuel pump. also make sure ur fuel filter is not plugged it sounds like a fuel pump to me. you will have to drop the fuel tank to replace pump.
My first thought would be a fuse or relay. ------------------------------------------------------------------ Don't forget to check the fuel pump inertia switch ( shut off switch ) located in the front passenger footwell behind the kick panel . If the button on the top of the switch has popped UP , then no power is going to the electric fuel pump
There is none. Ford uses the inertia switch on many of their vehicles. If you are not getting fuel pressure the most likely cause is a faulty fuel pump. First scan for trouble codes, if there are no codes. Spray starting fluid momentarilary in the air intake to see if the vehicle will start with fuel present. If it runs a few seconds on starting fluid, check for fuel pressure when the key is first turned on and listen for the relay and the fuel pump itself. If no sound from fuel pump check to see if it is getting power before replacement.
One: Make sure that the fuel pump has electrical power. Two: Check if fuel is flowing in, through, and out pump. Three: Check fuel line to filter for blockage. Four: Fill fuel tank with gasoline. Electrical power is a crucial and easy one. Open up your main relay box inside the car next to the steering wheel and test the switch that feeds power to the fuel pump. make sure there is current running through there. If not, then replace the switch.