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Re: 7.3 powerstroke help [Re: cotton] #7243795
04/15/21 05:08 AM
04/15/21 05:08 AM
Joined: Jun 2016
Posts: 8,104
Michigan
T
Trapper Dahlgren Offline
trapper
Trapper Dahlgren  Offline
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T

Joined: Jun 2016
Posts: 8,104
Michigan
mine did this it was the turbo ,

Re: 7.3 powerstroke help [Re: cotton] #7243839
04/15/21 07:40 AM
04/15/21 07:40 AM
Joined: Jul 2016
Posts: 1,048
Ne pa
J
Jerry Jr. Offline
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Jerry Jr.  Offline
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Joined: Jul 2016
Posts: 1,048
Ne pa
I would check the oil level. If that is good I would do as others said and change the oil (unless you just did this). Then I would look at the more expensive things. My money would be on the oil level too low to work the hpop or too dirty to work the hpop.


You can't buy experience, but you'll pay for it.
.... but what do I know, I'm just a dumb farmer. ~ My Dad.
NRA LIFE MEMBER, Endowment Member 5-23-14
Re: 7.3 powerstroke help [Re: cotton] #7243843
04/15/21 07:45 AM
04/15/21 07:45 AM
Joined: Feb 2014
Posts: 7,577
Ky
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jbyrd63 Offline
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jbyrd63  Offline
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J

Joined: Feb 2014
Posts: 7,577
Ky
You said hammering heck I thought that's how diesel motors all sounded.

Re: 7.3 powerstroke help [Re: Ohiowoodchuck] #7243988
04/15/21 12:00 PM
04/15/21 12:00 PM
Joined: Oct 2011
Posts: 609
Idaho
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bearcat2 Offline
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Idaho


I never had that problem personally, but that is why I first pulled the valve covers. Heard of lots of people having that problem. When you pull the valve covers check both the plug ins and the poppet screws.

If the oil level goes up. Don't drive it! It is dumping either diesel or antifreeze in the oil.[/quote]
Iím wondering what you are calling the poppet screw. The only screws Iím aware of are the four that holds the solenoid to the injector. Then there is the small bolt that holds the oil deflector on. Are you talking about the four screws under the solenoid that hold the injector body together? Maybe it was just on the 94 model trucks. Iíve had several of the 99-03 trucks and I swore Iíd never buy another one of the junk pos but low and behold I got a good deal on a 96 crew cab long bed 4x4 so Iíll be in the same boat again. [/quote]


the poppet screw goes through the armature plate (square w/ grooves). The screw head can be tightened with the infamous 'nintendo tool'.



If you take the valve cover off and start the truck, injectors should squirt oil. The inj requires a signal to move oil. The poppet valve is a 2 way shuttle valve-- the solenoid receives a signal and its magnet pulls the armature and valve up, then releases it, pushing the valve back down. The oil you see is the 'exhaust' from the work it does during the injection event.

Re: 7.3 powerstroke help [Re: cotton] #7243990
04/15/21 12:02 PM
04/15/21 12:02 PM
Joined: Oct 2011
Posts: 609
Idaho
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bearcat2 Offline
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Idaho
Aargh! That is in reply to Ohiowoodchuck, the quote work right.

Re: 7.3 powerstroke help [Re: bearcat2] #7244048
04/15/21 01:22 PM
04/15/21 01:22 PM
Joined: Jan 2019
Posts: 249
Southern Ohio
O
Ohiowoodchuck Offline
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Ohiowoodchuck  Offline
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Joined: Jan 2019
Posts: 249
Southern Ohio
Originally Posted by bearcat2
Aargh! That is in reply to Ohiowoodchuck, the quote work right.

Ok I know what screw your talking about. The reason it needs adjusted is because the injectors are wore out and need replaced. People adjust them and get a little more life out of them. Ford will tell you there a 250,000 mile injector but there not. With todayís oil your lucky to get 75,000 out of a set. I quit running rotella oil a long time ago.

Last edited by Ohiowoodchuck; 04/15/21 01:22 PM.

ďIf there must be trouble, let it be in my day, that my child may have peace.Ē
ó Thomas Paine
Re: 7.3 powerstroke help [Re: cotton] #7244088
04/15/21 02:07 PM
04/15/21 02:07 PM
Joined: Aug 2011
Posts: 1,040
IA, WI, ND, IL
M
martyd Offline
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Posts: 1,040
IA, WI, ND, IL
Letís us know what you did to get it fixed. Thanks. MD

Re: 7.3 powerstroke help [Re: cotton] #7244090
04/15/21 02:13 PM
04/15/21 02:13 PM
Joined: Oct 2019
Posts: 228
PA
C
cmj Offline
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Posts: 228
PA
While you are in there looking for stuff dont forget to check the oil and look in the coolant bottle, check coolant for oil or diesel. Pop the intake hose off at the turbo and try to move the wheel in and out. up and down is ok and look at the wheel to see if its messed up. Those trucks had a bad stock airbox that would break and let dirt in. Unless it has an aftermarket or homemade one on it.

Re: 7.3 powerstroke help [Re: cotton] #7244098
04/15/21 02:26 PM
04/15/21 02:26 PM
Joined: Jan 2009
Posts: 3,069
Nebraska
Trapset Offline
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Trapset  Offline
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Posts: 3,069
Nebraska
I run Rotella T6 full synthetic in my 2000 Excursion. It has over 280,000 miles and, knock on wood, I haven't had any injector or wire harness problems. I have always heard it will start being a little harder to start, as kind of a warning they are going bad. Rather than just leaving you walking all of the sudden. I hope that's the case.

Did yours give you any warnings before it shot craps cotton?

Re: 7.3 powerstroke help [Re: cotton] #7244195
04/15/21 04:37 PM
04/15/21 04:37 PM
Joined: Oct 2019
Posts: 228
PA
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cmj Offline
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PA
I bought my new injectors from full force diesel and a chip. They sent me one injector that was bad and knocked out one side of the injectors. talked to them on the phone a bunch of times, replaced a couple parts that they said would fix it because they said it wasnt their injectors fault. They wanted me to have it towed to a shop and get it fixed but they were not willing to pay. I ended up swapping the the injectors from pass side to drivers side figuring out the issue. I also made a high pressure oil gauge and saw no pressure on the bank that wasnt working. I cant remember now how I figured out which one it was but they sent me a new injector after i sent them the bad one back. No call back at all to see if my truck was running good after that and they wouldnt give me any $ for diagnosing the issue or for all the new injector o rings i replaced.
So if it is injectors dont use full force diesel!!!!

With the old injectors it would smoke on startup and not start when its cold. Had to cycle the glow plugs a couple times or keep it plugged in.

Re: 7.3 powerstroke help [Re: cotton] #7244246
04/15/21 05:55 PM
04/15/21 05:55 PM
Joined: Dec 2006
Posts: 7,020
Piney va. soon be 19
cotton Offline OP
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cotton  Offline OP
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Piney va. soon be 19
didn't get to work on it today, will try again tomorrow.
gonna pull all the air cleaner and intake plumbing off then maybe pull the valve covers off and see what it looks like.
did check the oil today and it's right where it should be.
only warning it gave was running a bit rough now and then on the 18 mile trip to town.
dang truck only has 296000 miles on it


John 3/16

ifin your gonna be dumb ya gotta be tough
Proud testosterone charged redneck
www.cotton45c.com
Re: 7.3 powerstroke help [Re: cotton] #7244286
04/15/21 06:49 PM
04/15/21 06:49 PM
Joined: Oct 2019
Posts: 228
PA
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cmj Offline
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PA
Still has some life in it, mine has 480,000

Re: 7.3 powerstroke help [Re: cotton] #7244309
04/15/21 07:26 PM
04/15/21 07:26 PM
Joined: Jun 2019
Posts: 112
Florida
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Hanger Offline
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Posts: 112
Florida
I would check HPOP and lines.

Re: 7.3 powerstroke help [Re: cotton] #7244329
04/15/21 07:45 PM
04/15/21 07:45 PM
Joined: Feb 2012
Posts: 974
Tazewell/VA
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bandy Offline
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Cotton pull value covers and remove all glow pugs and crank it look for fuel in a mist injector is good liquid its bad. Start there some good videos to watch is diesel Ron on YouTube.

Re: 7.3 powerstroke help [Re: cotton] #7244489
04/15/21 10:53 PM
04/15/21 10:53 PM
Joined: Dec 2006
Posts: 11,165
Central NC
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traprjohn Offline
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Cotton, check your PMs.


www.sevenoakstrappingsupplies.com for trap mods and gear
The 10 Commandments are not suggestions.
Buy a soldiers meal EVERY chance you can.

Re: 7.3 powerstroke help [Re: bandy] #7244506
04/15/21 11:49 PM
04/15/21 11:49 PM
Joined: Nov 2017
Posts: 47
maryland
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dirt trapper Offline
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maryland
might be the cam shaft senor

Re: 7.3 powerstroke help [Re: cotton] #7244524
04/16/21 04:33 AM
04/16/21 04:33 AM
Joined: Oct 2019
Posts: 228
PA
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cmj Offline
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PA
Cam sensor going bad on mine made it die and then possibly start up again and then die.
But they are $30 and go out often. Buy one and throw it in the glove box, i think u need an 8mm socket. front of the engine, 5 min job along side a busy highway rush hour pulling a camper!

Re: 7.3 powerstroke help [Re: cotton] #7244604
04/16/21 08:05 AM
04/16/21 08:05 AM
Joined: Feb 2021
Posts: 276
Wisconsin
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Mad Scientist Offline
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Posts: 276
Wisconsin
Originally Posted by cotton
didn't get to work on it today, will try again tomorrow.
gonna pull all the air cleaner and intake plumbing off then maybe pull the valve covers off and see what it looks like.
did check the oil today and it's right where it should be.
only warning it gave was running a bit rough now and then on the 18 mile trip to town.
dang truck only has 296000 miles on it

Is the check engine light on?

Re: 7.3 powerstroke help [Re: Mad Scientist] #7244652
04/16/21 09:07 AM
04/16/21 09:07 AM
Joined: Dec 2006
Posts: 7,020
Piney va. soon be 19
cotton Offline OP
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cotton  Offline OP
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Posts: 7,020
Piney va. soon be 19
Originally Posted by Mad Scientist
Originally Posted by cotton
didn't get to work on it today, will try again tomorrow.
gonna pull all the air cleaner and intake plumbing off then maybe pull the valve covers off and see what it looks like.
did check the oil today and it's right where it should be.
only warning it gave was running a bit rough now and then on the 18 mile trip to town.
dang truck only has 296000 miles on it

Is the check engine light on?

No sir it never came on.


John 3/16

ifin your gonna be dumb ya gotta be tough
Proud testosterone charged redneck
www.cotton45c.com
Re: 7.3 powerstroke help [Re: cmj] #7244676
04/16/21 09:39 AM
04/16/21 09:39 AM
Joined: Oct 2011
Posts: 609
Idaho
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bearcat2 Offline
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Posts: 609
Idaho
Originally Posted by cmj
Cam sensor going bad on mine made it die and then possibly start up again and then die.
But they are $30 and go out often. Buy one and throw it in the glove box, i think u need an 8mm socket. front of the engine, 5 min job along side a busy highway rush hour pulling a camper!

This.

I think it is a 10mm though. Course it is possible the size of the bolt head changed on different years smile

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