7.3 LOSS OF POWER - Ford Powerstroke Diesel Forum

 
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post #1 of 7 Old 10-25-2011, 02:35 PM Thread Starter
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7.3 LOSS OF POWER

HAVE BEEN HAVING THIS PROBLEM FOR A WHILE NOW AND CANT SEEM TO BE ABLE TO FIGURE IT OUT

HAVE A LOSS OF POWER AFTER A FULL DAY OF DRIVING TRUCK WILL NOT GO OVER 35 MPH
HAVE CHANGED INJECTORS, FUEL PUMP, SENDING UNIT, REGULATOR, WHAT ELSE CAN I TRY
TOOK IT TO DEALER AND THEY SAID IT HAD A LOSS OF FUEL PRESSURE SO THEY REPLACED THE FUEL PUMP THAT I HAD JUST PUT IN AND IT IS STILL DOING THE SAME THING

HELP
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post #2 of 7 Old 10-25-2011, 02:38 PM
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fuel pressure regulator , the spring may have broken. Been there

2000 F250 King Ranch Crew Cab 7.3L LB 4X4 100% home brewed Biodiesel
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post #3 of 7 Old 10-25-2011, 02:47 PM
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dang thats no good
BUMP for some help!

Jonathan or Jon

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enough for fun!
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post #4 of 7 Old 10-26-2011, 03:49 AM
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When you loose fuel pressure , how much fuel on the tank? Below a 1/4 and you could be picking up air if the fuel tank pickup foot is broken . Been there , did the hutch mod, all good.

2000 F250 King Ranch Crew Cab 7.3L LB 4X4 100% home brewed Biodiesel
ZF6 6SPD trans
Zoo Dad Mod
DP F5 Tuner
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4" straight exhaust with 5" tip
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285/75/16 Cooper ATP on factory 16's
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post #5 of 7 Old 10-26-2011, 04:05 AM Thread Starter
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TANK IS ALWAYS FULL
WAS TOLD THAT YOU CANT DO THE HUTCH MOD ON A VAN
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post #6 of 7 Old 10-26-2011, 04:24 AM
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have you or anyone tested the ipr? Check those pressures when its not making any power.

2008 6.4 f250 lariat 4wd
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post #7 of 7 Old 01-03-2012, 03:13 PM
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have you had the injector harnesses checked on top of valve covers either 2 per side or 1 per side this relays the info on timing and firing to each injector they are known to break down due to thermal and oil wear.. the code on injectors will tell a computer the injectors are bad due to slurry signal. this causes the injectors on either side to fire out of time causing power loss
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