cold timing advance

  1. thevanbulance

    Cold advance/high idle drop in power when switching to low idle

    Hi guys, Lately I've been noticing my 1990 7.3idi is exhibiting a strange behavior when switching over from high to low idle. Here's the proceedure leading up to and including the symptom: 1.) Cold start the engine and the high idle/cold advance appears to be working normally with my engine...

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