Thread: Trouble Code Question
View Single Post
  #2  
Old Fri, May 8th, 2009, 09:58 PM
cleatus12r's Avatar
cleatus12r cleatus12r is offline
F Your Yankee Blue Jeans
  
Join Date: Jan 2009
Location: Somewhere in Montana
Posts: 2,665
cleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to all
Default
Joe,

It's more of a nuisance code. It's no big deal. It has to do with the PCM commanding wastegate operation but the boost still climbing.

The sound you are hearing during the 2-3 shift is turbo stall. It's not good for the turbo at all. There is a lot of boost in the intake tract when under load at high rpm. When the transmission shifts, the need for all of that boost is diminished slightly and the air has nowhere to go but back out of the turbocharger compressor. You will not hear a wastegate open.
__________________
Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.