92 Ford f250 7.5 Would both fuel pumps go out at the same time?
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Was driving just fine, no issues. Stopped to get a bite to eat. Came back, started up the truck and it was sputtering. Turned it off then back on and was barely able to keep it idling (by playing with the gas pedal) flipped the switch to the other tank. No change. Turned it off. And then it wouldn't turn over. It turns over with starter fluid. Checked the fuses. All good. The relay clicks when you turn the key, but I couldn't hear the fuel pump come on (in the front or the back (gas tanks) . The only thing I didn't do was check the line to see if I was getting fuel pressure. Just didn't know how. I've never had two fuel pumps go out at the same time which leads me to believe that it's electrical. But I really dont have a clue. And yes I even banged on the gas tank. Lol. Not that I knew where to hit, but it did ease my frustrations abit. Getting it towed now, but any help would be greatly appreciated. (side note the engine size is 7.5 but it wouldn't give me that option) .
What makes this problem better or worse?
Starter fluid
How long has your 1992 Ford F-250 had this problem?
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Google > 92 F250 inertia switch .... I'm pretty sure you'll find the switch needs to be re-set.
It cuts off power to the fuel pumps in case of an accident - sometimes just the slightest jar will trip the switch to off .. Pushing the button down in center of switch re-sets the switch ..
This switch receives its power 'FROM' the relay - therefore the relay would indeed still click on but the inertia switch terminates the circuit when it is tripped to off.
This is listed in the owners manual.
Finally found the inertia switch and yes. It was tripped. Your awesome. I pushed it down, But... It still won't start. I couldn't confirm that it was getting power. Trying to see if power is leaving the relay. I heard that you could just switch out a different relay (one of the ones next to it) to see if it gives you power. Is that true? And can you poke the sharp part of the tester into a wire anywhere to see if the light comes on?
First > IT would be 'very unusual' to have TWO problems at same time!
Using a 12 volt test light - TEST for power at the inertia switch wires .. There should be voltage present on BOTH wires for a couple seconds as the key is cycled to the on position ..
The key must be cycled to off and then back on again to test the next wire at the switch.
IF no power is present at the inertia switch wires - it's very possible that during 'whatever' was tried before re-setting the switch (?) needs to be corrected now.
Good luck with it!
Finally found the inertia switch and yes. It was tripped. Your awesome. I pushed it down, But... It still won't start. I couldn't confirm that it was getting power. Trying to see if power is leaving the relay. I heard that you could just switch out a different relay (one of the ones next to it) to see if it gives you power. Is that true? And can you poke the sharp part of the tester into a wire anywhere to see if the light comes on?
First > IT would be 'very unusual' to have TWO problems at same time! Using a 12 volt test light - TEST for power at the inertia switch wires .. There should be voltage present on BOTH wires for a couple seconds as the key is cycled to the on position .. The key must be cycled to off and then back on again to test the next wire at the switch. IF no power is present at the inertia switch wires - it's very possible that during 'whatever' was tried before re-setting the switch (?) needs to be corrected now. Good luck with it!