No power at start up no codes

[nukeem17]

I have a 2003 f-350 4x4 auto with about 128k miles in my shop they have had it at a ford dealer they can't find the problem, at startup it runs rough like it's missing but it doesn't smoke, you can put it in drive, floor the accelerator and it won't accellerate. When it finally warms up it will respond normally but will skip at 55mph and greater. I put a snap-on scanner on it and there were 50+ codes on it so I cleared the codes to try and narrow the possibilities and drove it 50-60 miles to reset the monitors. Afterwards there was only one code, p1000 (that the obd 2 checks are not complete) how far do you have to drive to reset the monitors? Most vehicles are 50- 60 miles. The eng power level at idle is indicating 38 -40 % power which I thought was weird and when the accel pedal is depressed while running I see the eng pwr level flucuatate so I replaced the accelerator pedal, didn't fix the problem. The injection control pressure is normal. I would like to get some idea about where else to look. Cylinder contribution doesn't set any codes either. What do you think?

[DoubleDpsd]

turbo vanes? 50+ codes thats impressive, in a bad way. lol good luck man.

[nsrchofpwr]

Originally Posted by nukeem17

I have a 2003 f-350 4x4 auto with about 128k miles in my shop they have had it at a ford dealer they can't find the problem, at startup it runs rough like it's missing but it doesn't smoke, you can put it in drive, floor the accelerator and it won't accellerate. When it finally warms up it will respond normally but will skip at 55mph and greater. I put a snap-on scanner on it and there were 50+ codes on it so I cleared the codes to try and narrow the possibilities and drove it 50-60 miles to reset the monitors. Afterwards there was only one code, p1000 (that the obd 2 checks are not complete) how far do you have to drive to reset the monitors? Most vehicles are 50- 60 miles. The eng power level at idle is indicating 38 -40 % power which I thought was weird and when the accel pedal is depressed while running I see the eng pwr level flucuatate so I replaced the accelerator pedal, didn't fix the problem. The injection control pressure is normal. I would like to get some idea about where else to look. Cylinder contribution doesn't set any codes either. What do you think?

what engine is it? 7.3 or 6.0? any mods?

[nukeem17]

it's a 6.0 stock no mods thought i would try the egr and the turbo vanes tomorrow

[nukeem17]

tried egr and improved the power and missing looked at turbo vanes have errosion on leading tips guess we will be getting a new turbo soon

[tj1974]

sounds almost like my problem except mine do not miss mine starts up fine and runs fine but will not accelerate over 1000 rpm i did what you did replace the TP sensor witch is the accelerater petel assembilly and did not fix it i think the turbo might be bad i took off the exhaust pipe that connects to the turbo and it is full of oil i do not know if that is wrong with mine just yet still waiting on some one to answear my post