View Single Post
  #7  
Old 01-29-2011, 08:08 PM
DmaxMaverick's Avatar
DmaxMaverick DmaxMaverick is offline
Administrator
 
Join Date: Apr 2001
Location: CA
Posts: 12,025
Arrow

Doesn't sound like the turbo. You may have an issue with fuel delivery, either physical (obstruction or low lift pressure), or a sensor (baro or MAP) is causing the PCM to pull back the fuel. No fuel, no boost, no matter what you do. Without the turbine driving the compressor (either by the WG bypassing, or lack of fuel), the turbo won't whine like you've become accustomed to hearing.

Your vacuum system sounds healthy, with 21/15" indicated. Can't ask for more than that.
__________________
1985 Blazer 6.2
2001 GMC 2500HD D/A
2014 Chevy Cruze Diesel - Fabulous car, no problems at all, but sold Nov. 2016 @ 55K miles.
dmaxmaverick@thedieselpage.com
Reply With Quote