FORD TARUS 1998 the fuel pump is good and there is good fuel when I shoot gasoline in the carb my self it run for a few seconds then dies it wont start on it sown
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Check for fuel at the carb fuel inlet if it has fuel lightly tap on the fuel fitting to unstick the needle from the seat. If I remember right there's a booster pump under he left side of the truck check to see if it's running and pumping fuel.
If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, check fuel system. If this is a carbed engine, usually the fuel pressure isn't very high. You can take fuel line loose from carb, aim into container, bump the starter a few times, see if gas comes out. If nothing comes out, check fuel pump and fuel lines.
5--7 psi is fuel pressure spec I've seen for 6 cylinder 1980 ford, carbed engine.
fuel pump is gone for sure. it ran until the fuel in engine burnt then died. poor 1/4 cup gas into intake. if it starts and dies a couple seconds later then 100% fuel pump.
sound like you need to purge the air out of the system if it's fuel injected there should be a looks like an air valve on the fuel line at the rack
just use a flat screw driver to depress and let the air out but watch out if you are doing this while trying to start the truck fuel could go everywhere
be carefull
If you replaced all of the hoses as they were & the wires the same as befoere repair then you may just need to operate the ignition switch back & forth a while to prime the system again. You did drain it when removing the pump & lines.
The pump will only kick on for a few seconds at a tiime prior to starting & if you turn the key to on for 3-5 seconds & off for the same & repeat this several times, you should be able to hear the fuel pump run each time and as the fuel system gets pressure, the pump will have a sound of building pressure that you can notice.
Helps sometimes to listen through the fuel filler neck to hear the pump, with the fuel cap removed, having another person to turn the key just to the ON position & OFF each time. Only attempt to start once you have pressure built up
No pump sound, there is a problem & you should double check the installation process, then begin troubleshooting if that isn't the problem.
ok I had same problem with my 1996 Isuzu npr 5.7 gas burner. on top of fuel tank are wires and cant remember if it was 3 or 4 but anyways one of those wires is your ground wire to the fuel pump its self. make sure the wire has a good ground on the frame and/or the bed body of the truck. wish you the best hope I could help you
The mechanic should check on the idle .Because the Idle of the truck is adjusting by it self . That causes the truck to stop .check the Idle then lock it up to so that it will not adjust until it will make the truck stop .the main reason why the truck stop and pressure guage going down steadily is that no fuel enters the fuel pump when it adjust Idle by it self . It adjust by closing way or blocking the fuel to pass and go to the engine.then the engine dies .
if this is a 1980 F150, emissionwiz is correct in saying it has a carburetor, if your engine runs on ether, you do not have fuel supply to the engine. Check fuel delivery at the front of carburetor, should be a line screwed into the carb, may be connected by a rubber hose, remove this line and crank engine, look to see fuel is gushing out of the line, if no fuel the pump is bad, check fuel lines back to pump for leaks, replace leaking lines if necessary. If you get fuel then your float inside the carb is stuck, and the carb will need some attention, hope this helps, let me know
recheck spark by putting a plug into one of the plug wires and place on valve cover, crank engine and see saprk in that plug. check fuel pressure during cranking to verify fuel supply. If you have no fuel pressure check fuses and fuel pump relay, in fuse box and power distribution box under the hood. If all are good check for power at the fuel pump connector with the key in start position, in run position the power will only be there for about 5 seconds, you are correct with fuel and spark it should run, let me know what you find
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