7.3 engine bogs down - Ford Powerstroke Diesel Forum

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post #1 of 19 Old 05-10-2008, 11:03 AM Thread Starter
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7.3 engine bogs down

I have a 2001 F350 7.3 powerstroke with a automatic transmission,My problem started yesterday, I just got out on the road, and around 3rd gear, and out of know where the engine bogs down (no power) could not get over 25mph or so. I changed CPS sensor and new fuel filter, no help!
Any Ideas? and how do I go about pulling codes?
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post #2 of 19 Old 05-10-2008, 11:11 AM
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did your check engine light come on??

if you see a light at the end of the tunnel, it's probably just a photon torpedo
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post #3 of 19 Old 05-10-2008, 11:16 AM Thread Starter
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No engine light, has not come on
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post #4 of 19 Old 05-10-2008, 11:33 AM
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is it a random problem??

if you see a light at the end of the tunnel, it's probably just a photon torpedo
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post #5 of 19 Old 05-11-2008, 03:19 PM
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Could it be?

My 94 had a similiar problem about a year ago and it turned out to be that the cad. converter was plug. May not be but it would be a cheap fix.
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post #6 of 19 Old 05-11-2008, 03:37 PM
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Quote:
Originally Posted by powerstroke10 View Post
I have a 2001 F350 7.3 powerstroke with a automatic transmission,My problem started yesterday, I just got out on the road, and around 3rd gear, and out of know where the engine bogs down (no power) could not get over 25mph or so. I changed CPS sensor and new fuel filter, no help!
Any Ideas? and how do I go about pulling codes?
25mph in 3rd? What happens if you hold it in 1st and 2nd? Does the motor bog at the same rpm? How does the engine sound at idle?

You'll need to pull some codes and if possible watch the data stream. Professional scanners can read the trans data also.

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post #7 of 19 Old 05-20-2008, 06:44 AM
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Did you find the cause i think mine is doing it also
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post #8 of 19 Old 06-23-2008, 06:13 AM
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The 01 F250 that my wife drives has done the same thing. (It's a 6 spd). You'll just be driving along and lose all power: runs, idles fine but NO acceleration. Usually stop, kill and restart truck and it's fine. It used to do it pretty often but after I replaced a bad CPS it quit for several months but it just did it again the other day.

And this may sound strange but when i used to drive it everyday(instead of the wife) 90% of the times it did this was after I cut it off/back on to order at the drive @ lunch.

2005 F-350 CC LB 4x4 XL 6.0
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4" Turbo back exhaust
03 turbo
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Warren Stock+ injectors

1996 F-250 ECLB 4x4 XLT 7.3 Auto



1993 F350 CCLB 4x4 5spd 7.3 NA
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post #9 of 19 Old 06-23-2008, 06:29 AM
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After the engine bogs down, and you get off of the pedal, does it act right again? Could be the EBPV going bad, and closing on you. I'd try unplugging it at the turbo, and seeing what happens. Unplugging it, will set a soft CEL, but wont illuminate the CEL. Hope you find the problem.

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post #10 of 19 Old 06-23-2008, 06:40 AM
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No, getting off the pedal does not help. Only switching truck off and restarting will help.

2005 F-350 CC LB 4x4 XL 6.0
SCT
4" Turbo back exhaust
03 turbo
Studs
Coolant Filter
Warren Stock+ injectors

1996 F-250 ECLB 4x4 XLT 7.3 Auto



1993 F350 CCLB 4x4 5spd 7.3 NA
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