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Poor acceleration & strange engine noise??
I am new to the Powerstroke world as I have just purchased a 1999 F-350. I hope someone can help as a few issues arose on my ride home. First let me tell you what I have. It's a 1999 F-350 Dually Lariat trim with the Centurion conversion. It has the 7.3L engine, automatic transmission, 4:10 limited slip rear. It is set up with a K&N cold air intake, a what looks like 4" (maybe 5") exhaust and an Edge Evolution programmer. Slightly oversized tires all around. The truck has 87,000 miles on it.
When I purchased the truck I did a walk around inspection, The truck started fine cold (upper 20's in temp), though it did blow a cloud of smoke (white) after about a minute or two it cleared. The transmission shifts fine through the gears in forward and reverse. The truck also starts fine when the engine is hot, no smoke. As the truck had no plates/tags I could only test drive it a short distance.
Here are my two issues, first once I started on my ride home it felt like there should be more power. Never having a Powerstroke before maybe it is normal. but acceleration is very sluggish. The Edge Evolution Programmer was showing a turbo boost pressure of only a few psi. The highest boost I received accelerating was 9 psi. I think it should be much higher. The programmer is set to stock, I think??? I have no manual and don't now how to adjust it. Could the programmer be keeping the boost pressure down? Or do I have other issues. I have yet to check all the intake boots for leaks (read that they could be a problem).
My second issue is on the ride home when I pulled into a rest stop there is a loud what sounds like a bearing noise. It sounds as if there could be a bad bearing in either the idler pulley or tensioner or water pump or one of the other accessories. the only problem with that is when you change engine rpm the sound stays constant no change in pitch of the sound at all. Now that I heard this sound I was listening for it while driving the rest of the way home. As the engine is fairly loud it was hard to hear in the truck. I have determined that when driving and you let off the throttle and coast the sound goes away completely.Once you slow down and the engine idles the sound is back. The sound is louder when the engine/truck is warm. I did a search and someone mentioned the torque converter ? Would the sound not change with rpm or sound different when in and out of gear?
It seams like a great truck, I hope my issues are minor and that someone can tell me where to look to fix these issues. With only 87K on the truck it should have many years left on it.
Oh and one other unrelated question the truck has a draw-tite remove a ball gooseneck hitch on it. Does anyone know if that can be adapted to a fifth wheel hitch or if that has to be removed to install the rails for the fifth wheel hitch?
Thanks to all who reply.