Won't start til 2nd try and lost 2mpg

Discussion in 'Technical Department' started by keithfa, Apr 20, 2017 at 1:18 PM.

  1. keithfa

    keithfa New Member

    Posts:
    3
    Likes Received:
    0
    Joined:
    Jul 16, 2009
    Location:
    Orlando, FL
    I don't have to post here much since my truck is a little older and I can normally find an answer with the search but not this time. 2007 NNBS Sierra crew 4x4 with the 5.3 flex that just hit 100k.

    For 6 months now I turn the key, let it go and the starter spins for the 6 or 8 seconds it's supposed to but it doesn't start. Second crank it starts. 95% of the time this is what happens and 5% of the time it will start on the first crank like it's supposed to. It's not the fuel pump or fuel pressure. I can cycle the key on and off 12 times before I try to start it and the same thing happens.

    Since this has started happening I have lost about 2mpg in addition. The truck does everything else like it should. No power loss or hesitation in the motor. Any insight would be much appreciated!
     

Share This Page