Results 1 to 2 of 2

Thread: 05 5.3 Vortec stock - Warm Start Issue

  1. #1
    Potential Tuner
    Join Date
    Apr 2014
    Posts
    2

    05 5.3 Vortec stock - Warm Start Issue

    Help. I am new and have been trying to figure out my warm start issue. Tried adding air, fuel, advance, still no luck. Bugging me for months. Just changed my cam sensor- no luck. Warm start issue is only an issue when car sits for several minutes. If I cut off and crank up immediately its fine. If I bump it once then it cranks fine but if its warm and sits a few minutes- long embarrassing cranks.
    http://www.hptuners.com/forum/images.../hpl_thumb.gif
    Attached Files Attached Files

  2. #2
    Potential Tuner
    Join Date
    May 2014
    Posts
    1
    had a similar problem within the past week. i checked battery, alternator and was all set to buy a new fuel pump when i read online about a bad IAT sensor causing this. have you checked your IAT sensor? i replaced that and no more warm start issues.