Originally Posted by crashz

I've never opened mine up to that point, so I'm just speculating here. But something doesn't seem right. I didn't think the cups directly sealed the coolant, oil and fuel. Could this be a head gasket issue instead? Personally I'd try a compression test to see what happens.

Originally Posted by Jkeeling99

ust got my 1999 f350 7.3, 6speed, 4x4 KC stage 1 truck.
after 24 hours of owning it, the radiator began leaking. I replaced it, truck then began to run kinda rough. Almost like it wasn’t getting enough fuel. Checked my fuel filter and it was in absolute pieces.
truck still had a bad miss to it, so I took it home, pulled it in the shop, and disconnected my injectors one by one until I found the one that didn’t change the idle of the truck. Had a parts truck sitting, pulled an injector out of it, all was fine, ran like a champ. While I had the injector out, I noticed fuel was leaking down into the bore through the cup wall. upon further inspection I Noticed I had some fuel in my coolant. Did some research and figured it was my injector cups. I have worked endlessly on this truck since owning it. I pulled the valve covers off, and pulled all my injectors out. Then pulled all glow plugs as well as cups. Placed new cups in place after removing all fluids from the truck, and placing a good amount of the loctite in the cups, and put them back in place with a buddy’s tool. Reseated my injectors after putting new o-rings on them, turned the truck over to try to expel any fluids in the cylinder, put new motor craft glow plugs in it along with new valve covers harness. Took me approximately an hour to get the truck started. Crank for 20 seconds, let it set for 60/120 seconds. It finally built good oil pressure, and started. It when it initially fired, it puked more oil out the exhaust. Was concerned but chalked it up to being some more fluids that didn’t come out. Truck runs absolutely horribly. Drove it approx 10 miles, and it shutoff. Get out of the truck, check fluids, no oil. My coolant is now black. I’m so tired of working on it, I’m so tired of paying for it, and not being able to drive it any. I need help.

Originally Posted by Jkeeling99

ust got my 1999 f350 7.3, 6speed, 4x4 KC stage 1 truck.
after 24 hours of owning it, the radiator began leaking. I replaced it, truck then began to run kinda rough. Almost like it wasn’t getting enough fuel. Checked my fuel filter and it was in absolute pieces.
truck still had a bad miss to it, so I took it home, pulled it in the shop, and disconnected my injectors one by one until I found the one that didn’t change the idle of the truck. Had a parts truck sitting, pulled an injector out of it, all was fine, ran like a champ. While I had the injector out, I noticed fuel was leaking down into the bore through the cup wall. upon further inspection I Noticed I had some fuel in my coolant. Did some research and figured it was my injector cups. I have worked endlessly on this truck since owning it. I pulled the valve covers off, and pulled all my injectors out. Then pulled all glow plugs as well as cups. Placed new cups in place after removing all fluids from the truck, and placing a good amount of the loctite in the cups, and put them back in place with a buddy’s tool. Reseated my injectors after putting new o-rings on them, turned the truck over to try to expel any fluids in the cylinder, put new motor craft glow plugs in it along with new valve covers harness. Took me approximately an hour to get the truck started. Crank for 20 seconds, let it set for 60/120 seconds. It finally built good oil pressure, and started. It when it initially fired, it puked more oil out the exhaust. Was concerned but chalked it up to being some more fluids that didn’t come out. Truck runs absolutely horribly. Drove it approx 10 miles, and it shutoff. Get out of the truck, check fluids, no oil. My coolant is now black. I’m so tired of working on it, I’m so tired of paying for it, and not being able to drive it any. I need help.