Injector questions..
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New User
Joined: Jan 2007
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From: Alabama
Injector questions..
I have a '99 7.3L Powerstroke, it has 180K miles on it. It recently had the fuel recirc pump, the one under the drivers door mounted on the frame, replaced. The truck runs very rough when cold, smokes and takes 10 minutes to warmup to go anywhere. If I dont wait the ten minutes, it will act like it is running out of fuel on me. Ford says the injectors, not all of them, but enuff to make it costly, need replacing. Any ideas on the problem? Is it realy the injectors?
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Originally Posted by F250-Newbie
How would you check the glow plugs? Forgive my ignorance... just trying to learn more about my engine.
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New User
Joined: Jan 2007
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From: Alabama
The glow plugs, are they inside the valve covers? What about the glow plugs would cause this engineering to act as if it is out of fuel? The truck is far away rightnow, what holds the covers on, its not some silly torqx head or odd fasterner that requires me to buy a drawer full of special tools is it?
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
I have a '99 as well. The valve covers are held down with a bunch bolts with either 1/2" or 13mm heads on them. Some of them have studs coming out the top of the bolts to hold wiring harness brackets, dip stick tubes, etc.
Basically all you need to remove the valve covers is a socket set. Also a 1/2" or 13mm swivel ended socket is very helpful for removing several of the bolts. Nearly impossible to get a straight shot at 5 or 6 of them.
You'll need a 10mm socket to back out the retainer bolt that holds the wiring harness plug to the engine harness. It's in the center of the plug on the port side facing out. Back out that bolt and the whole plug disconnects.
What happens is the wiring harness's disconnect from the inside of the valve cover. If you have a '99 it most likely has some problems with the glow plug wire rubbing on the push rod. I had to buy new valve cover gaskets and new wiring harness's because of the way they were routed, the glow plug wire rubbed through on a push rod and melted the plug.
I made a thread about it a couple of years ago.
https://www.ford-trucks.com/forums/2...or-wiring.html
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Basically all you need to remove the valve covers is a socket set. Also a 1/2" or 13mm swivel ended socket is very helpful for removing several of the bolts. Nearly impossible to get a straight shot at 5 or 6 of them.
You'll need a 10mm socket to back out the retainer bolt that holds the wiring harness plug to the engine harness. It's in the center of the plug on the port side facing out. Back out that bolt and the whole plug disconnects.
What happens is the wiring harness's disconnect from the inside of the valve cover. If you have a '99 it most likely has some problems with the glow plug wire rubbing on the push rod. I had to buy new valve cover gaskets and new wiring harness's because of the way they were routed, the glow plug wire rubbed through on a push rod and melted the plug.
I made a thread about it a couple of years ago.
https://www.ford-trucks.com/forums/2...or-wiring.html
.
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Hotshot
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From: North of Greenville
Hey kwik... didn't you also recently find some injector torque problems under your covers? If so, I can't remember what the proper torque setting should be, and want to make a note for when I go digging inside sometime soon. (I hope I'm remembering this right)
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Joined: Nov 2006
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From: North of Greenville
Hey Dale, we have another thread running along these lines... here's the link.
https://www.ford-trucks.com/forums/5...good-idea.html
https://www.ford-trucks.com/forums/5...good-idea.html
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Originally Posted by F250-Newbie
Hey kwik... didn't you also recently find some injector torque problems under your covers? If so, I can't remember what the proper torque setting should be, and want to make a note for when I go digging inside sometime soon. (I hope I'm remembering this right)
I retorqued everything last time the covers were off and about half of the rocker arm pedastal bolts were a little loose, the others were still ok.
Torque them to 18 FOOT lb.
The injectors hold down bolts, all eight of them took some more retorquing but none of them were actually loose. They just took some more when snugging them down to the factory spec of 120 INCH lb.