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  1. General Discussion
    I bought my 3500 LT 4x4 the last day of June 2021, unbeknownst to me it had not had the CP4.2 pump replacement done I drove it daily until October and it took a huge crap of sorts. Now, all of you awesome people know what I am talking about and I only have 2 questions; 1. Does GM do...
  2. General Discussion
    Does anyone know where I can buy the short metering device extension cable and the temp sensor holding block, see the two items circled in red in the attached photo.
  3. 2011-2016 (Non Powertrain)
    I'm embarrassed to admit that I live in Southern California, but it's true, at least for a little longer. My 2012 GMC CCSB LML is approaching 100,000 miles and I tow a 5th wheel on both short and long family road trips several times a year. I've decided to go ahead and address the faulty CP4.2...
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