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  1. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    I just took apart the intake manifold on my 2004 DTS and am planning on replacing all the gaskets and also the TB connector 'plenum'. As you can see there's quite a bit of oil around and on the gaskets and I'm just wondering if that's normal as I've never done this before. I also plan to clean...
  2. SRX 1st Generation Forum - 2004-2009
    Hi all I've replaced throttle body as well as throttle body wiring 6months ago All was good untill today. Car goes into reduced power mode and wants to stall out as well as traction control light on Was wondering has anyone else found a permanent fix for this or used a aftermarket tps? This is...
  3. 2004-2007 CTS-V Performance Mods
    I have a 2006 cts v (LS2 243 heads) and I was looking for advice on supporting mods for a recently done rebuild. The engine was just rebuilt and has a TSP V4 torquer cam in it. The heads are stock as well as the intake and it has kooks long tube headers. I am currently on a base tune until it is...
  4. HT4100 4.1, 4.5, 4.9
    Does anyone here have this engine WITHOUT the Early Fuel Evaporation part? I just got done removing and reinstalling the throttle body. I'd intended to use a new gasket and ordered one from Rock Auto. It was obvious that it would not fit, because the holes for the injection stream were too...
  5. STS Forum - 2005-2012
    Hello! My problem is I’m seeing Reduced engine power come up on my dash and my car will not start now. The gas pedal does nothing when I try to start it so I can rev it up to keep an idle. It’s so close to starting but just won’t and I can’t help it with the pedal at all. So I researched and...
  6. ATS General Discussion Forum
    so long story short, I installed the Zzp large throttle body for my 2018 ats 2.0 Issue I encountered 12 hrs after install -knocking from engine -only once, seen steam coming from the hood -rpm sputtering -let off gas, speed stayed constant, rpm went to 0 - virtually 0 rpms when at stop -hard...
  7. 2008-2013 CTS Performance Mods
    Okay so after I did my research about the vmax iceolator, I heard about the vmax ported throttle body. Well now I cant find anyone that sells it. I found basically the same thing on Ebay, some guy by the name of Greg was selling it. But these are not the vmax throttle body's. I was wondering if...
  8. CTS First Generation Forum - 2003-2007
    What's the small hose coming from the bottom of the throttle body then connecting to a thin plastic line going back between the upper and lower intake manifold on an '03 3.2? I thought it was a vacuum line but it's dripping antifreeze. I've replaced the hose twice but it still drips. 😕
  9. 2008-2013 CTS General Discussion
    So i have a 09 cts base I was getting engine power reduced and so I cleaned the throttle body put everything back on and I’m still getting p0121 p0221 p0223 p2119 p0496 all connectors are fine but I heard about a tb reset but can’t find any info on it. Can anyone help???
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