Sep 092015
 

My Jimmy will start, run for about three minutes, then after idling from aboutv1200 rpm until warms to idle at 750 rpms, the engine shuts off.

  One Response to “1992 GMC S 15 Jimmy 4×4”

  1. Does it start right back up?

    Possible IAC – Idle Air Control
    Possible vacuum leak
    Is the check engine light on – Check Codes Yourself Here

    Will it stay running if you give it a little gas? Clean the throttle body

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