No power.... any ideas?

[DYNAMiTE]

A friend of mine has a 94 CC DRW with the 7.3 and it seems like the turbo never kicks in at any RPM.... You never hear the turbo at all and it just runs like a TURD... If anyone is familiar with the 6.0 it acts the same as my truck with the VGT solenoid unplugged. I am not real familiar with the 7.3 and would like some insight on what could be wrong. He uses this truck solely to pull a race car and will not get above 60 unless going down a mountain.. It doesnt seem to build boost with or without the trailer. Any help would be appreciated.

[jethro]

check the turbo for shaft play a clogged cat can cause a similar problem as well as broken or loose y pipe boots. also check the up pipes for leaks

[DYNAMiTE]

Checked all of that and still... nothing

[lwillson]

Check the tube running from the passenger exhaust manifold to the Exhaust Back Pressure sensor. If that tube is plugged, the PCM doesnt know how much exhaust pressure there is.