Lost Pulling Power
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Joined: Mar 2011
Posts: 9
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From: West Virginia
Lost Pulling Power
I have a 2000 5.4L super duty. It hit 100,000 miles and I changed the plugs, boot, PCV valve and ran some engine cleaner thru it. Over thelast 5000 miles it lost pulling power. Drives in town great but it has no power on the highway and hills I used to pull my camper up 55 mph I'm barely getting 35. Don't know where to start. It has 108,000 on it now.
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Joined: Jun 2011
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I have a 6.8 with 130,000 and I'm totally convinced that I should have had my exhaust mainfold bolts replaced, way before last week (about 2 yrs ago to be honest). Loss of power, gas mileage went in the basket, but no CEL.
If you have no CEL, I would definitely start with that especially if you notice your exhaust seems louder than "normal"
If you have no CEL, I would definitely start with that especially if you notice your exhaust seems louder than "normal"
New User
Joined: Jan 2012
Posts: 16
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From: The Wolverine State
Just had close to the same issue. Replaced the fuel filter and TPS. Still had the problem, checked fuel pressure and it was way down. I had the fuel pump replaced and that seems to have fixed it
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