engine smoking after swap
Cargo Master
Joined: Aug 2009
Posts: 2,137
Likes: 13
From: Glendive, MT
No need to pull the turbo off or apart. Just pull the intake hose off the inlet and check it.
White smoke I would suspect is fuel pressure or sticking injector. Chances of it being head gasket or almost none.
White smoke I would suspect is fuel pressure or sticking injector. Chances of it being head gasket or almost none.
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Junior User
Joined: Oct 2017
Posts: 72
Likes: 1
From: Oklahoma City
It is white smoke and it idles perfect. Would low fuel pressure cause the white smoke. I would think that it is too much fuel to cause the smoke. I could certainly be wrong though. I will hook up the fuel pressure gauge this weekend and verify the pressure.
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Junior User
Joined: Oct 2017
Posts: 72
Likes: 1
From: Oklahoma City
So I took the truck for a drive down the street. I got about a block away and it shut down to running on 4 cylinders. I checked the codes and it says the left bank is high. I have already replaced the UVCH on that side with new FORD parts. Will the IDM shut down all 4 cylinders if one injector goes bad? IF so how do I get it to reset? Will clearing the codes reset the IDM? What would be the recommended way to figure out which injector it is?
Cargo Master
Joined: Aug 2009
Posts: 2,137
Likes: 13
From: Glendive, MT
A buzz test should tell you which injector is causing the problem.
My bet is on a loose connector. Check the plug at the valve cover. Same thing happened to me on the same side. The connector to the valve cover on the outside was not clipped in tight.
My bet is on a loose connector. Check the plug at the valve cover. Same thing happened to me on the same side. The connector to the valve cover on the outside was not clipped in tight.
Elder User
Joined: Jul 2012
Posts: 575
Likes: 1
From: Eastern KS
Am I the only one that read that line? There was a guy on here awhile back having issues with his boost gauge going negative off idle, ended up being a clogged intercooler. I’m sticking with a clog somewhere...
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Cargo Master
Joined: Aug 2009
Posts: 2,137
Likes: 13
From: Glendive, MT
That's what I'm thinking too. That's about the only way to ever see negative pressure on the map line.
Freshman User
Joined: May 2019
Posts: 25
Likes: 0
From: KC
I bought a 2001 7.3PS 4WD and pulled the engine out of it. It ran and drove great before I pulled the engine. I put that engine in a 1999 F250 7.3PSD 2WD. Now the engine starts and idles great but it billows white smoke when I rev the engine and it does not seem to be developing any boost. I pressure checked the inlet side of the turbo and it holds around 20 psi. I cleared all the codes and then ran it and checked again. Here is what I got.
P0603,P0720.
RPM=2000 EBP=28.1 MAP=-.7 HPOP=870 IPR=15.5 EOT=127.8
Am I right that the MAP should be much higher than this? What would make it not build boost if there are no leaks on the intake side? It did not smoke like this before the engine swap.
P0603,P0720.
RPM=2000 EBP=28.1 MAP=-.7 HPOP=870 IPR=15.5 EOT=127.8
Am I right that the MAP should be much higher than this? What would make it not build boost if there are no leaks on the intake side? It did not smoke like this before the engine swap.
Freshman User
Joined: May 2019
Posts: 25
Likes: 0
From: KC
so which is it? we know the piston rings didnt go bad, we know the injectors didnt suddenly take a crap... but that turbo... I would swap and see what happens. i have an obs turbo in my garage I would give you but that does a wastegated man no good
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
This thing grew so long I started to skim. I haven't seen any driving mentioned, so this is all in the driveway in neutral? If so, no boost can build there.
If the truck hasn't been driven at least 100 miles, we don't yet know what the engine will really do. 99 PCM or 2001 PCM? I think the E99 is different than the rest.
If the truck hasn't been driven at least 100 miles, we don't yet know what the engine will really do. 99 PCM or 2001 PCM? I think the E99 is different than the rest.
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Junior User
Joined: Oct 2017
Posts: 72
Likes: 1
From: Oklahoma City
You are correct that most of this is in the driveway in neutral. I realize it will not build much boost there but it had very little power to drive. I did drive it down the street and it shut down and is now only running on 4 cylinders. The left bank (drivers side) is shut down. I have a new FORD UVCH on that side so I am now thinking the IDM has shut down that side and I cannot get it to reset. I am thinking that whatever caused it to shut down to 4 cylinders could have been causing my smoke to start with. How do I get the IDM to reset so those cylinders will not be shut down. I unplugged the injectors one at a time and cleared the codes in between. Still won't run on more than the right bank.I am using Forscan and Torque Pro to do all this with the codes. This is also a new E99 IDM.
