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hard starting hot

Discussion in 'Chevy Trucks' started by blublzr, Mar 27, 2007.

  1. blublzr

    blublzr Member
    Messages: 35

    having trouble starting my 1999 siverado 1500 when it hot. last tune-up was about 30000
    miles ago. should i try new plugs and wires? the truck has 121000 miles on it.

    wil :)
  2. derekbroerse

    derekbroerse 2000 Club Member
    Messages: 2,377

    How is the crank speed when hot? Is it spinning ok and just not catching? Or slow and laboured?
  3. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    Some GM starters were prone ( in the past ) to slowing down / binding to a stop when warm / hot.
    The radiant heat from the exhaust heats them up and slows them down .
    If it's got a lot of miles and the starter has not been changed, think about replacing it.