97 7.3L sudden power loss and stall!!! HELP!! - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 08-23-2013, 08:34 PM Thread Starter
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97 7.3L sudden power loss and stall!!! HELP!!

Hey everyone getting to know more about my truck due to lack of maintenance of prior owner it will randomly lose a severe amount of power sounds like **** and eventually stalls. like today i was humming along at 70 in 5th and the idle changed and rpms and speed steadily decreased so i down shifted and ran it at 55 running it back to 3k rpms and yet again kept it up till 2nd gear and then she stalled so i managed to coast home lol any ideas ive been pulling here apart all day and im to the point that idk my head from my arse

1997 F250 HD 260k miles 3.5'' straight pipe, 3'' lift
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post #2 of 3 Old 08-23-2013, 08:51 PM
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Had some issues with a 96 PSD auto running rough then would run great, rough again, on an on 'til one day it just wouldn't crank. Intermittent problems are the hardest to find, especially if there's no check engine light or water in fuel light coming on, or no trouble codes. But mine ended up being the lift pump sticking, leaking and maybe sucking some air along the way. I rebuilt the pump, cleaned the fuel system and replaced the filter, and the '96 was the strongest stock 7.3 I ever had.

2002 F-250 LARIAT CCSB 7.3 AUTO 4X4 255,XXX
2004 EXPLORER XLT 4.0 AUTO 2WD 130,XXX
1966 MUSTANG COUPE 289 4 brl V8

IN-LAWS...
2004 EXPLORER SPORT TRAC 4.0 4X2 100,XXX
2004 F-250 RCLB 6.0 AUTO 4X2 376,XXX
2005 F-250 RCLB 6.0 AUTO 4x2 352,XXX

SOLD... 3 RANGERS, 3 F-150s, 3 F-250s, 96 COUGAR 4.6, 99 EXPEDITION 5.4, 65 66 AND 69 MUSTANGS

RE-ASSIGNED... MULTIPLE FORD POLICE INTERCEPTORS

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post #3 of 3 Old 08-24-2013, 09:44 AM Thread Starter
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Quote:
Originally Posted by AU7POINT3 View Post
Had some issues with a 96 PSD auto running rough then would run great, rough again, on an on 'til one day it just wouldn't crank. Intermittent problems are the hardest to find, especially if there's no check engine light or water in fuel light coming on, or no trouble codes. But mine ended up being the lift pump sticking, leaking and maybe sucking some air along the way. I rebuilt the pump, cleaned the fuel system and replaced the filter, and the '96 was the strongest stock 7.3 I ever had.
okay well i think mine only has an injector pump the mechanical one the POS one! im thinking about going electrical so it will be one less problem down the road i stilll havent found the cause was up till mid night going to town on it and im back at it this morning if i find out what it is i'll post up everything i did so i can possibly help someone else! its more than just run rough it'll just loss power you can slam it to the floor and it still drops to a stall.

1997 F250 HD 260k miles 3.5'' straight pipe, 3'' lift
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