87 B2 MYSTERY PROBLEM! HELP NEEDED

[B5150]

k so my bronco has always ran great. until one day i came home randomly came home to move it one day an it would not start! i feel like ive tryed everything. it has spark. 40+ lbs of fuel pressure. tested injectors and they pulse. it will run and rev on either/carb cleaner. replacements started with battery, fuel filter,fuel pump, pump relay, inertia switch. idk were else to go its all i got so i have to get it going!

[Ranger Dave]

injectors may pulse, but anything commin out of them. check for water. i went through the same thing with a full size

[101btp]

dose it have a gas cap on it

[B5150]

well when i tested them i put two testers on it. a fuel pressure gauge to the little valve. an an injector tester to the clip that go's on top on the injector. how can you tell if gas flows. an how do they come out without me breaking somthin cuz im good at that..


an when i tray an start it sounds like it almost fires the first time then just will crank n crank

[Ranger Dave]

what year is this rig?

[B5150]

1987. well 9/86 so its a 87.

[Ranger Dave]

cycle the key on/off(dont start) for say 10 times, see if it runs longer

[Ranger Dave]

k, it has 2 fuel pumps, see if there both commin on

[B5150]

notta. an after i put my tank an everything back in i noticed it had a gergling like bubble sound in my tank when i cycle. an i have plenty of gas. both fuel pumps are pretty loud an i have great fuel pressure.

[drofman]

don't know if this will help you

[drofman]

might want to test your fuel pressure regulator. if it runs on spray can, then it's gotta be a fuel problem. just throwing stuff at you

[B5150]

idk i know my pumps are good. it runs on either like it used to sound! but i don do it long .

[B5150]

weres that

[Ranger Dave]

whats the FP while cranking it over? mine is at 40 but fluctuates,then once runnin drops to 30,step on the gas,up to 40

[Ranger Dave]

weres that

on the fuel rail with a vac line goin to it, next to the port where you tested the presuure