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  1. 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...
  2. Escalade, EXT and ESV Forum - 2007-2014
    hi new here and could use some help I have a 2008 escalade I have replace the cats after previous ones clogged put in new oxygen sensors as well and can't keep the check engine light off just came back from mechanic said the car need new injectors 3 of them where clogged put 8 new ones in and...
  3. CT4-V Series Forum - 2020+
    Driving home tonight just got a random evaporation emissions system - immediate action message?? Has anyone experienced this? Checked fuel latch ( all good ) Checked everything in the engine seems normal.. Any suggestions?
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