: What is wrong with this fuelie 460?


masterbeavis
04-15-2007, 01:08 PM
http://i14.photobucket.com/albums/a315/Masterbeavis/th_P1010096.jpg (http://s14.photobucket.com/albums/a315/Masterbeavis/?action=view&current=P1010096.flv)

It ran great when I got it, put it in storage, somebody messed with it. When I got it back, it ran like ass. I get no codes, but the motor wont run steady. Nothing else appears out of the ordinary, engine sounds fine, no squeals, knocks, pings, nothing. It is tough to start when it has been sitting now. When I got it, it would start right up, even with a weak battery. Once started, it will fire right up. Let it sit for a few hours, it wont start easy again.

This is a 9 second or so clip, motor at about 3K, pedal being held steady. It dogs when you give it gas, almost like the secondaries opening up on a 4V when the motor isnt ready.
'
The truck is a '92 F350, 460FI, ZF 5 speed, Speed density. 200K on the rig, unknowm miles on the motor. It looks newer than the truck, or at least well maintained.

AERONUTT
04-15-2007, 09:06 PM
How long was it in storage? Could just be bad gas if it sat for a year or more. If that's the case, drain the tank, get some fresh gas, run a Sea Foam treatment through the injectors, and see what happens. New plugs and wires are an easy, cheap, and quick thing to try too.

If it's only been a few months you shouldn't have these problems from stale gas. You'll have to start looking for the "somebody messed with it" stuff like spark plug wires out of order, vacuum lines disconnected, sensors unplugged, etc...