Hey fellas, an old friend of mine has a 99' F-350 4x4 and a little probelm.
The truck has 75K on it and is mainly a distance hauler of one person and air.
The truck has an intake, exhaust, VB
mods and chip.....get's almost 18MPG @ 75 MPH.
Ok, here's the problem. When he first got the upgrade, just over the 40k mark, the truck would belch smoke and run like a rabbit. And now, 30k later @ 75k it's just not performing like it did. There isn't as much smoke, it doesn't "peel" @ take-off, and it tends to kick-down a gear a little more. The truck was taken to the Ford dealer and they said everything was fine. Heck the dang oil is changed every 3,000 miles! The oil never seems to burn...but changing every 3k miles, how could ya tell?
Anyone care to guess what the problem might be? :shrug: