limp home mode

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Northstar Engines and System Technical Discussion Discussion, limp home mode in Cadillac Engine Discussion; I was wondering what the limp home mode does on the N*, how are you able to drive back with ...
  1. #1
    Night Wolf's Avatar
    Night Wolf is offline Cadillac Owners 10000+ Posts
    Automobile(s): Unicycle
    Join Date
    Mar 2003
    Where I park it

    limp home mode

    I was wondering what the limp home mode does on the N*, how are you able to drive back with coolent loss, and how long can you drive it like that for?

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  3. #2
    AKPsiMC03's Avatar
    AKPsiMC03 is offline Cadillac Owners Enthusiast
    Join Date
    Feb 2003
    Middlebury, CT
    limp home means just that. get it home, then fix it before driving again. When mine was in that mode, as soon as i hit the gas it would stall.... but in the cool note, it sounded like a SBC with a really lumpy cam.

  4. #3
    Katshot's Avatar
    Katshot is offline Cadillac Owners Master
    Join Date
    Jan 2003
    Newtown, PA
    The PCM rotates between cylinder groups firing some and not others. The ones that aren't firing, it allows the air that's being pumped through to cool the engine.
    In theory, it works but several customers have just "roasted" the engines when trying to "limp" home.
    The best bet unless the car's under warranty is to shut it down ASAP and get it towed.

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