No Profanity *** No Flaming *** No Advertising *** No Anti Trappers *** No Politics
No Non-Target Catches *** No Links to Anti-trapping Sites *** No Avoiding Profanity Filter


Home~Trap Talk~ADC Forum~Trap Shed~Wilderness Trapping~International Trappers~Fur Handling

Auction Forum~Trapper Tips~Links~Gallery~Basic Sets~Convention Calendar~Chat~ Trap Collecting Forum

Trapper's Humor~Strictly Trapping~Fur Buyers Directory~Mugshots~Fur Sale Directory~Wildcrafting~The Pen and Quill

Trapper's Tales~Words From The Past~Legends~Archives~Kids Forum~Lure Formulators Forum~ Fermenter's Forum


~~~ Dobbins' Products Catalog ~~~


Minnesota Trapline Products
Please support our sponsor for the Trappers Talk Page - Minnesota Trapline Products


Print Thread
Hop To
Page 1 of 4 1 2 3 4
7.3 powerstroke help #7243600
04/14/21 08:54 PM
04/14/21 08:54 PM
Joined: Dec 2006
Posts: 6,925
Piney va. soon be 19
cotton Offline OP
trapper
cotton  Offline OP
trapper

Joined: Dec 2006
Posts: 6,925
Piney va. soon be 19
2000 f-350 7..3
went to town and it was running fine, one time on the way it ran rough for just a bit.
went to wallyworld, and got our stuff. started back home and truck started running real rough and was lossing power. got to thinking fuel filter was stopped up and went to parts store and put one on it.
motor was really hammering bad cut it off and waited a bit the started it back up and tried to pull out of parking spot, no go no power and was hammering worse. call two truck and now i am trying to figure this out.
took filter cap off and had wife turn key on so could see if getting fuel to the bowl, filled up and overran in a few seconds. been told is maybe injector pump and/or injectors.


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] #7243604
04/14/21 08:59 PM
04/14/21 08:59 PM
Joined: Oct 2011
Posts: 1,122
Western Shore Delaware
SJA Offline
trapper
SJA  Offline
trapper

Joined: Oct 2011
Posts: 1,122
Western Shore Delaware
Was she "jumping"? Did you bleed the fuel line? How low was the fuel BEFORE you filled up? . . . one other question, did you smell anything burning?

Last edited by SJA; 04/14/21 09:03 PM.

"Humans are the hardest people to get along with."
Dr. Phillip Snow
Re: 7.3 powerstroke help [Re: cotton] #7243609
04/14/21 09:02 PM
04/14/21 09:02 PM
Joined: Dec 2006
Posts: 6,925
Piney va. soon be 19
cotton Offline OP
trapper
cotton  Offline OP
trapper

Joined: Dec 2006
Posts: 6,925
Piney va. soon be 19
3/4 tank of fuel in it, was filled up the day before, fuel looks clean and dry.
jumped some for sure


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] #7243613
04/14/21 09:07 PM
04/14/21 09:07 PM
Joined: Oct 2011
Posts: 1,122
Western Shore Delaware
SJA Offline
trapper
SJA  Offline
trapper

Joined: Oct 2011
Posts: 1,122
Western Shore Delaware
If you lost "go power" when in gear, possibly a tranny problem. Had a similar sounding problem in a '99 F250.

Last edited by SJA; 04/14/21 09:09 PM.

"Humans are the hardest people to get along with."
Dr. Phillip Snow
Re: 7.3 powerstroke help [Re: cotton] #7243614
04/14/21 09:11 PM
04/14/21 09:11 PM
Joined: Oct 2011
Posts: 419
Idaho
B
bearcat2 Offline
trapper
bearcat2  Offline
trapper
B

Joined: Oct 2011
Posts: 419
Idaho
Likely injectors. A little tip for a cheap fix. Take the valve covers off, on top of the injector there is a poppet screw. This has a funky looking head like a reverse torx head, I can't remember the actual name of it, but it is often called a "Nintendo screw" because apparently the only thing that uses them are Powerstroke injectors and Japanese video games. It can be a bit of a pain to find a bit to fit it, probably have to order it, or you can grind the walls of 4.5mm socket real thin so they fit in the recess and sometimes get enough of bite with them to tighten the screw. But these screws have a habit of backing off when the injectors get some mileage on them, and when they do the injector doesn't pump fuel. tighten those down and it will inject fuel again. Had to do this to several of my injectors a couple times on my 94 7.3 It'll run on 7 cylinders, just a little rough and losing a little power, on six it gets great fuel mileage but it doesn't hardly have enough power to climb a hill and is real rough. Let me tell you on five cylinders it will about rattle you right out of the cab, and that is if you can get it to start!

A $.50 bit to tighten them poppet screws is a lot cheaper than $1500 for new injectors.

Re: 7.3 powerstroke help [Re: cotton] #7243621
04/14/21 09:17 PM
04/14/21 09:17 PM
Joined: Oct 2011
Posts: 1,122
Western Shore Delaware
SJA Offline
trapper
SJA  Offline
trapper

Joined: Oct 2011
Posts: 1,122
Western Shore Delaware
Sorry BC2, can't resist . . . "but it is often called a "Nintendo screw" because apparently the only thing that uses them are Powerstroke injectors and Japanese video games.

Is that the same thing as a knuter valve? crazy


"Humans are the hardest people to get along with."
Dr. Phillip Snow
Re: 7.3 powerstroke help [Re: cotton] #7243625
04/14/21 09:27 PM
04/14/21 09:27 PM
Joined: Jan 2019
Posts: 248
Southern Ohio
O
Ohiowoodchuck Offline
trapper
Ohiowoodchuck  Offline
trapper
O

Joined: Jan 2019
Posts: 248
Southern Ohio
Check the plug ins under the valve covers. The original design of the plug ins were notorious for coming unplugged just a bit and loosing a whole bank of cylinders. Also check the plug ins on the outside of the valve covers also. The 99-03 trucks have a high pressure oil pump that relies on high pressure oil to fire each injector. Also check the oil level and let me know if it has went up on the dipstick. Check those items outs and report back and we can go from there.


If there must be trouble, let it be in my day, that my child may have peace.
Thomas Paine
Re: 7.3 powerstroke help [Re: Ohiowoodchuck] #7243644
04/14/21 09:46 PM
04/14/21 09:46 PM
Joined: Feb 2021
Posts: 174
Wisconsin
M
Mad Scientist Offline
trapper
Mad Scientist  Offline
trapper
M

Joined: Feb 2021
Posts: 174
Wisconsin
The valve cover gaskets have wires running thru it for glow plugs and injectors or plug ins could be bad.$50.00 per side at rockauto

Re: 7.3 powerstroke help [Re: Mad Scientist] #7243653
04/14/21 09:53 PM
04/14/21 09:53 PM
Joined: Jul 2011
Posts: 452
Custer SD
A
arcticotter Offline
trapper
arcticotter  Offline
trapper
A

Joined: Jul 2011
Posts: 452
Custer SD
Originally Posted by Mad Scientist
The valve cover gaskets have wires running thru it for glow plugs and injectors or plug ins could be bad.$50.00 per side at rockauto


This

Re: 7.3 powerstroke help [Re: cotton] #7243662
04/14/21 10:00 PM
04/14/21 10:00 PM
Joined: Jun 2018
Posts: 3,626
Beatrice, NE
L
loosegoose Offline
trapper
loosegoose  Offline
trapper
L

Joined: Jun 2018
Posts: 3,626
Beatrice, NE
Diesels are such wonderful fun. First things first......don't start replacing things on a hunch, that'll get really expensive really fast. Dish it properly, and replace what's broke. You'll need proper tools, including a scan tool, to dish it properly. Check fuel pressure from the left pump, and check fuel pressure in the high pressure system....you'll need a scan tool for that. If it runs fine after sitting a while and gets progressively worse, you may have a torn o-ring on a fuel injector. It's a bit of a process to figure that out though. If it runs like crap when cold but gets better as it warms up, you may have a "sticktion" issue. They get gooped up, and there are various lotions and potions that you can run in your oil to try to fix it, the best did is to replace all the injectors though. You'll need a scan tool to perform a "buzz test", it clicks each injector and you can tell by the sound if they're okay or not.

Re: 7.3 powerstroke help [Re: Ohiowoodchuck] #7243663
04/14/21 10:00 PM
04/14/21 10:00 PM
Joined: Dec 2006
Posts: 6,925
Piney va. soon be 19
cotton Offline OP
trapper
cotton  Offline OP
trapper

Joined: Dec 2006
Posts: 6,925
Piney va. soon be 19
Originally Posted by Ohiowoodchuck
Check the plug ins under the valve covers. The original design of the plug ins were notorious for coming unplugged just a bit and loosing a whole bank of cylinders. Also check the plug ins on the outside of the valve covers also. The 99-03 trucks have a high pressure oil pump that relies on high pressure oil to fire each injector. Also check the oil level and let me know if it has went up on the dipstick. Check those items outs and report back and we can go from there.

will check it out in the morning

thanks guys


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: Ohiowoodchuck] #7243672
04/14/21 10:09 PM
04/14/21 10:09 PM
Joined: Oct 2011
Posts: 419
Idaho
B
bearcat2 Offline
trapper
bearcat2  Offline
trapper
B

Joined: Oct 2011
Posts: 419
Idaho
Originally Posted by Ohiowoodchuck
Check the plug ins under the valve covers. The original design of the plug ins were notorious for coming unplugged just a bit and loosing a whole bank of cylinders. Also check the plug ins on the outside of the valve covers also. The 99-03 trucks have a high pressure oil pump that relies on high pressure oil to fire each injector. Also check the oil level and let me know if it has went up on the dipstick. Check those items outs and report back and we can go from there.


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.

Re: 7.3 powerstroke help [Re: bearcat2] #7243680
04/14/21 10:17 PM
04/14/21 10:17 PM
Joined: Jan 2019
Posts: 248
Southern Ohio
O
Ohiowoodchuck Offline
trapper
Ohiowoodchuck  Offline
trapper
O

Joined: Jan 2019
Posts: 248
Southern Ohio
Originally Posted by bearcat2
Originally Posted by Ohiowoodchuck
Check the plug ins under the valve covers. The original design of the plug ins were notorious for coming unplugged just a bit and loosing a whole bank of cylinders. Also check the plug ins on the outside of the valve covers also. The 99-03 trucks have a high pressure oil pump that relies on high pressure oil to fire each injector. Also check the oil level and let me know if it has went up on the dipstick. Check those items outs and report back and we can go from there.


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.

Im wondering what you are calling the poppet screw. The only screws Im 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. Ive had several of the 99-03 trucks and I swore Id 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 Ill be in the same boat again.

Last edited by Ohiowoodchuck; 04/14/21 10:54 PM.

If there must be trouble, let it be in my day, that my child may have peace.
Thomas Paine
Re: 7.3 powerstroke help [Re: cotton] #7243700
04/14/21 10:37 PM
04/14/21 10:37 PM
Joined: Dec 2006
Posts: 9,527
Oakland, MS
Drifter Online content
trapper
Drifter  Online Content
trapper

Joined: Dec 2006
Posts: 9,527
Oakland, MS
Low on oil will shut em down as well. Those valve cover gaskets suck and go south when unplugged part way from arcing.


�Still, if you will not fight for the right when you can easily win without bloodshed; if you will not fight when your victory will be sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than live as slaves. � � Winston Churchill








Life member NTA , and GA Trappers assoc .
Re: 7.3 powerstroke help [Re: cotton] #7243715
04/14/21 10:50 PM
04/14/21 10:50 PM
Joined: Nov 2014
Posts: 1,164
Texas
J
jtg Offline
trapper
jtg  Offline
trapper
J

Joined: Nov 2014
Posts: 1,164
Texas
On top of the motor block there is a yellow valve handle to drain water. I would try that first.

Re: 7.3 powerstroke help [Re: Drifter] #7243722
04/14/21 10:58 PM
04/14/21 10:58 PM
Joined: Jan 2019
Posts: 248
Southern Ohio
O
Ohiowoodchuck Offline
trapper
Ohiowoodchuck  Offline
trapper
O

Joined: Jan 2019
Posts: 248
Southern Ohio
Originally Posted by Drifter
Low on oil will shut em down as well. Those valve cover gaskets suck and go south when unplugged part way from arcing.

Ive had it happen on everyone of the 7.3s Ive owned. International/Ford re-engineered the new ones to solve this problem. The last set I bought was about 85.00 a side buts its been a few years. Never tried the aftermarket ones.


If there must be trouble, let it be in my day, that my child may have peace.
Thomas Paine
Re: 7.3 powerstroke help [Re: cotton] #7243755
04/14/21 11:41 PM
04/14/21 11:41 PM
Joined: Jun 2008
Posts: 3,282
SW Pa
W
wr otis Offline
trapper
wr otis  Offline
trapper
W

Joined: Jun 2008
Posts: 3,282
SW Pa
Have somebody turn key on while you listen to the injectors cycle. If one side cycles and the other side is quiet, then the quiet side has come un plugged.

Happened to mine two weeks ago. My driver's side was shut off, driver's side is the easier of the two to fix.

Gaskets you can get at napa or advance, with wires or without.

Re: 7.3 powerstroke help [Re: cotton] #7243774
04/15/21 12:41 AM
04/15/21 12:41 AM
Joined: Mar 2013
Posts: 77
Interior Alaska
G
GUK Offline
trapper
GUK  Offline
trapper
G

Joined: Mar 2013
Posts: 77
Interior Alaska
Change the oil, new oil and filter. Power stroke is a HEUI engine. It uses high pressure oil to accomplish the injection. Dirty oil and they will run rough. May not solve the problem, it many times it does. Get a infrared thermometer and look at the exhaust manifold runners where they bolt to head. A bad/not firing injector will show cold compared to a properly running cylinder. Same can be done with welders heat chalk on the runners. 250degree chalk will work. Try to identify where the problem is before tearing things apart.


GUK.....it's the sound they make when they hit the end of the cable
Re: 7.3 powerstroke help [Re: cotton] #7243782
04/15/21 01:21 AM
04/15/21 01:21 AM
Joined: Aug 2020
Posts: 767
Alaska
T
Twolines Offline
trapper
Twolines  Offline
trapper
T

Joined: Aug 2020
Posts: 767
Alaska
Sounds like the problem could be the ford part u mentioned. Ive heard those things go bad and need replaced often. Buddy of mine has fords he has to replace all the time....lol just kidding..kind of.

Re: 7.3 powerstroke help [Re: GUK] #7243788
04/15/21 04:29 AM
04/15/21 04:29 AM
Joined: Jan 2011
Posts: 124
NE Mississippi
G
GRP Offline
trapper
GRP  Offline
trapper
G

Joined: Jan 2011
Posts: 124
NE Mississippi
Originally Posted by GUK
Change the oil, new oil and filter. Power stroke is a HEUI engine. It uses high pressure oil to accomplish the injection. Dirty oil and they will run rough. May not solve the problem, it many times it does. Get a infrared thermometer and look at the exhaust manifold runners where they bolt to head. A bad/not firing injector will show cold compared to a properly running cylinder. Same can be done with welders heat chalk on the runners. 250degree chalk will work. Try to identify where the problem is before tearing things apart.

I have a 2000 7.3. Lost track of miles hauling hay in last fall. Started knocking and acting up. Checked shop books and it was way overdue. Changed oil, doing perfect again. Also, I use nothing but Rotella 15w40.


For by grace are you saved by faith, and not of yourselves, it is the gift of God.
Page 1 of 4 1 2 3 4
Previous Thread
Index
Next Thread