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04-20-2014, 05:04 PM
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#1
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Senior Member
Join Date: Apr 2012
Location: Fort White, Fl
Posts: 760
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Need diesel expert help
I went out to start my truck we were going to the in laws for dinner. Truck started but was missing like crazy I turned it. We jumped in the Wife'said car and went to the in laws (where I am right now. Truck ran fine the other day. I'm thinking (and hoping) that it is a Cam Position Sensor. I have never had to change one but, have a spare one (was warned to have a spare). So to the experts when one goes bad is this a possible symptom? Truck is 2003 F250 7.3 PS.
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2021 Alpine 3790FK
2021 F-350 SD XLT PS 6.7 Dually Longbed 4wd Crew Cab
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04-20-2014, 05:38 PM
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#2
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Senior Member
Join Date: Dec 2012
Location: Michigan
Posts: 1,440
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prob cam sensor think a 18mm removes it if memory serves me.. always carry a spare as you do or more
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2012 Wildcat 344QB
06 LBZ ,CC 4x
lots of mods
Superglide
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04-20-2014, 08:40 PM
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#3
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Member
Join Date: Jul 2013
Posts: 36
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Have you had the under valve cover wire harness issue yet?
Sent from my XT1032 using Forest River Forums mobile app
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2014 30QBSS - Salem Travel Trailer
2000 Ford Excursion 7.3 4X4
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04-20-2014, 10:21 PM
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#4
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Member
Join Date: Apr 2014
Location: Open road USA Fulltimmers
Posts: 36
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Its on the front of the motor. ...just replaced mine think it was an 11 or12..they cost about 26 bucks at Orielly
Sent from my SAMSUNG-SGH-I527 using Forest River Forums mobile app
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John and Aptil
2013 Sabre 36QBOK
Ford F350 7.3 Powerstroke Crewcab
Full Time
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04-20-2014, 10:25 PM
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#5
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Senior Member
Join Date: Feb 2014
Posts: 1,428
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Could be anything including an injector that bled down washing the cylinder out. I had that happen one time on my truck, it cleared up after a few minutes, hasn't missed a lick in probably 70,000 miles since.
They're known for cam sensors, the harness under the covers as mentioned, and low oil pressure from diluted oil can make them run rough.
I'm hoping for the cam sensor.
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Now-2014 Sierra 346RETS 5er BUB
Then-2002 Keystone Springdale 286RLDS TT
Nights camped in 2014-28, 2015-127, 2016-10
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04-20-2014, 10:35 PM
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#6
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Member
Join Date: Apr 2014
Location: Open road USA Fulltimmers
Posts: 36
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By missing...did it remind u of an OLD hotrod with a 300 stall converter? Vrump vrump vrump kinda thing?
Sent from my SAMSUNG-SGH-I527 using Forest River Forums mobile app
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John and Aptil
2013 Sabre 36QBOK
Ford F350 7.3 Powerstroke Crewcab
Full Time
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04-20-2014, 10:50 PM
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#7
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2007 WildCat 32QBBS
Join Date: Jul 2011
Location: NJ
Posts: 2,349
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A faulty cam position sensor will not start. Also while cranking, the tachometer will not move because the CMP sensor drives the tach.
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*Current: 2005 Ford F350 Crew Cab Dually 6.0 diesel 4x4*
*Retired: 1987 F350 Crew Cab Dually 6.9 turbo diesel
2007 Forest River WildCat 32QBBS
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04-20-2014, 11:44 PM
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#8
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Junior Member
Join Date: Apr 2009
Posts: 2
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probably gonna be the under valve cover harness just dealt with this problem myself. runs rough and the 50 cent mod will take care of it
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04-21-2014, 04:41 AM
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#9
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Senior Member
Join Date: Apr 2012
Location: Fort White, Fl
Posts: 760
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I was in a hurry yesterday as we needed to go to the in laws for dinner. When I got home I remembered that my Bullydog would show diagnostic codes so I checked it out. It had codes
P1316
P1247
P1211
In that order so I don't think it is the CPS anymore thinking and hoping it is a short in the Injector Wiring Harness. I have to go get a MRI this am and will mess with it when I got home from the MRI.
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2021 Alpine 3790FK
2021 F-350 SD XLT PS 6.7 Dually Longbed 4wd Crew Cab
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04-21-2014, 06:26 AM
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#10
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by RickV
I was in a hurry yesterday as we needed to go to the in laws for dinner. When I got home I remembered that my Bullydog would show diagnostic codes so I checked it out. It had codes
P1316
P1247
P1211
In that order so I don't think it is the CPS anymore thinking and hoping it is a short in the Injector Wiring Harness. I have to go get a MRI this am and will mess with it when I got home from the MRI.
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P1316 possible injector wire?
Watch "7.3 Diesel Powerstroke misfire runs rough code P1…" on YouTube
7.3 Diesel Powerstroke misfire runs rough code P1…: http://youtu.be/GHwjEfJtM_g
TURBS
Sabre owners united!
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04-21-2014, 07:05 AM
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#11
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Senior Member
Join Date: May 2013
Posts: 532
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Need diesel expert help
If you have the ability to run an injector buzz test, do so and that will tell ya which side may have the under valve cover harness loose causing the runs rough, P1316 dtc. Or you can just update both sides and be done..... ( the bolt to remove the cam sensor is a 10mm headed bolt - just fyi ) even # bank of injectors are on drivers side and odd # bank of injectors is on passenger side of engine.
Clear the dtcs, p1247 is a boost code, p1211 is a high pressure oil system dtc, that could have been set due to cranking time.... They may not return after the p1316 dtc is fixed.
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04-21-2014, 12:14 PM
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#12
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Senior Member
Join Date: Apr 2012
Location: Fort White, Fl
Posts: 760
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Quote:
Originally Posted by f1100turbo
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Watched that video about 5 am  . I already checked it out it with the laser temp gun. It is the driver's side bank got a new gasket with the harness on the way.
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2021 Alpine 3790FK
2021 F-350 SD XLT PS 6.7 Dually Longbed 4wd Crew Cab
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04-21-2014, 10:12 PM
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#13
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Keep us informed!
TURBS
Sabre owners united!
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04-22-2014, 04:57 AM
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#14
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Senior Member
Join Date: Apr 2012
Location: Fort White, Fl
Posts: 760
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Quote:
Originally Posted by f1100turbo
Keep us informed!
TURBS
Sabre owners united!
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Will do, got the gasket in hand, will get on it once it gets light out. I need to get it running today my 5ver is at Camping World getting the frig fans replaced (was supposed to be done last week but one of the replacement fans was bad outta the box) and I need to pick it up whether or not it it is fixed today or tomorrow morning at the latest. We are heading up to High Falls State Park Thursday morning.
__________________
2021 Alpine 3790FK
2021 F-350 SD XLT PS 6.7 Dually Longbed 4wd Crew Cab
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04-22-2014, 07:16 AM
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#15
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Senior Member
Join Date: May 2013
Posts: 532
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You say you have a gasket in hand, did you get the updated inner wire harness? 9D930 ?? The gasket alone isn't the issue, it's the harness tab will come loose..... Highly recommend replacing the harness under the valve cover.....
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04-22-2014, 07:49 AM
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#16
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Senior Member
Join Date: Apr 2012
Location: Fort White, Fl
Posts: 760
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Quote:
Originally Posted by Dijoeboss
You say you have a gasket in hand, did you get the updated inner wire harness? 9D930 ?? The gasket alone isn't the issue, it's the harness tab will come loose..... Highly recommend replacing the harness under the valve cover.....
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Yeah i got the one with the wiring harness going out right now to get started on it. Hopefully that cures my problem.
__________________
2021 Alpine 3790FK
2021 F-350 SD XLT PS 6.7 Dually Longbed 4wd Crew Cab
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04-22-2014, 10:34 AM
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#17
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Senior Member
Join Date: Apr 2012
Location: Fort White, Fl
Posts: 760
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Well that didn't fix it. Doing some searching I am thinking it may be the IDM. Checked all the wires and the seem good.
__________________
2021 Alpine 3790FK
2021 F-350 SD XLT PS 6.7 Dually Longbed 4wd Crew Cab
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04-22-2014, 10:59 AM
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#18
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Senior Member
Join Date: Jul 2013
Location: BoCoMo
Posts: 2,784
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Is not your CPS
The valve cover gaskets are reusable.
You should have look under the valve cover before buy a new harness as it may have come unplugged and could have fixed it for .25 cent (50 cent mod is for a quarter on each side).
You may have a bad ICP. Drivers side on the head. Is it leaking oil. Unplug it and see if the truck runs better.
Post your question and symptoms on this site.
1999 - 2003 7.3L Power Stroke Diesel - Ford Truck Enthusiasts Forums
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Brother Les
2013 Forest River Salem Hemisphere SBT312QBUD
2001 CrewCab F-250 7.3 PowerStroke Diesel
SuperChip, BTS transmission, 6.0 Trans Cooler
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04-22-2014, 02:14 PM
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#19
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Senior Member
Join Date: Apr 2012
Location: Fort White, Fl
Posts: 760
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Well it lives. It was the IDM. I am $500+ poorer 
__________________
2021 Alpine 3790FK
2021 F-350 SD XLT PS 6.7 Dually Longbed 4wd Crew Cab
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04-22-2014, 03:04 PM
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#20
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Senior Member
Join Date: Jul 2013
Location: BoCoMo
Posts: 2,784
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Quote:
Originally Posted by RickV
Well it lives. It was the IDM. I am $500+ poorer |
Did you change it out yourself or pay someone? You should have been able to buy one a lot cheaper. How sure are you that it was the IDM unit itself and not just bad connections that would need cleaned, adjusted and greased (dielectric grease)?
__________________
Brother Les
2013 Forest River Salem Hemisphere SBT312QBUD
2001 CrewCab F-250 7.3 PowerStroke Diesel
SuperChip, BTS transmission, 6.0 Trans Cooler
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