Plenum in a 1999 Silverado 2500

Discussion in 'Chevy Truck Talk & GM News' started by bluebrick, Feb 21, 2012.

  1. bluebrick

    bluebrick New Member

    Joined:
    May 14, 2008
    Messages:
    29
    Likes Received:
    0
    Hope I have not bored everybody with continuing Sea Foam questions, but the instructions for the vortec engines ( I have the 6.0 ) says to insert the 30" straw into the air intake until you reach the plenum and I am sorry to say that I don't even know what the plenum is when I reach it. Help!
    #1

Share This Page