Ford F350 7.3 Diesel SES Sensor and loss of Power - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 01-23-2010, 11:04 AM Thread Starter
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Ford F350 7.3 Diesel SES Sensor and loss of Power

My truck is a 1999 F350 7.3 Diesel for a little while my SES light was intermittently flickering and not often, but when it would flicker the motor would choke back a little. We figured it needed a service. Last week on my to school the light came on solid. The truck wasn't the same when I got out of school. I started it up and the SES light remained on the truck would not accelerate above 10-30 and the rpms topped out at 2000-2500. The oil has been changed the fuel filter has been changed the batteries starter and alternator are new it has been treated with diesel 911 and the high pressure fuel pump has been replaced.
The truck is getting fuel to the filter but acts as if it is getting none..

The cam shaft sensor has been replaced a year ago due to the ford recall. Ive seen on some forums that this is a possible problem.. Is it possible for the replaced one to fail so soon?

Ive also been told it is possible for the ses light to be on due to a diesels version of the map sensor??

Im hoping someone will have some ideas as I'm not quite in the money right now. Our business structly operates in the summer time at the moment and winter months are not easy for things like this...
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post #2 of 14 Old 01-23-2010, 02:12 PM
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What codes are coming up?


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post #3 of 14 Old 01-24-2010, 06:34 AM Thread Starter
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What codes are coming up?
No codes yet. I purchased a regular OBD II reader and of course and it doesn't work with the truck..... I need to get my hands on a code reader that will read it, because the cost to do it at a garage is a little out of my range at this point.
By coming here I was hoping to find a few people who have already experienced this issue and could maybe shed some insight in the meantime while I wait to get a code reader..
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post #4 of 14 Old 01-24-2010, 08:06 AM
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its hard to say without knowing what codes are set. once your able to read codes, come back and post them up and we can go from there.
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post #5 of 14 Old 01-24-2010, 04:49 PM Thread Starter
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Originally Posted by fordmasterdieseltech View Post
its hard to say without knowing what codes are set. once your able to read codes, come back and post them up and we can go from there.
Any suggestions on a good scan tool that i can buy for myself that would be fairly cheap ? I've seen that the equus 3140,3150,3160's read diesels??
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post #6 of 14 Old 01-24-2010, 04:55 PM
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Does it feel like its only running on 4 cyls? It could the the under valve cover harness.


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post #7 of 14 Old 01-27-2010, 01:13 PM
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Or ICP sensor...

01 F-350 SD, crew cab, long bed 7.3l
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post #8 of 14 Old 01-29-2010, 09:21 PM Thread Starter
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Originally Posted by fordmasterdieseltech View Post
its hard to say without knowing what codes are set. once your able to read codes, come back and post them up and we can go from there.
p0237 p0340
p1690 p0237
p1670 p1211
p1316 p0732
p0470 p0720
p0340 p1277
p0279
I was told some of these codes may go away though when some stuff is fixed i know that one of these coeds is inj #7 sensor #1 and camshaft sensor code..... The camshaft I had replaced in 08 cause it was recalled.... Is it normal for it to go again?
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post #9 of 14 Old 01-29-2010, 09:26 PM
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Any mods on this truck? Yes CPS can go bad quickly. Do you know the color of the CPS?

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post #10 of 14 Old 01-30-2010, 07:01 AM Thread Starter
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I have no idea what color it is. Unfortunately Ford put it in so I never saw it. If it is outside the motor Ill go locate it and let you know.


As far as the other codes though is it possible for inj 1 to be gone too and the sensor isn't saying, cause its bad?


In some of my friends experiences as well if one injector goes they all should be replaced is this the case in all powerstrokes?

I also run this truck with no mods. When this truck is 100% it is a freakin Beast....
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