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idle surging

  1. 1991 Idle issues

    5.0L Tech
    So, i'm new to this forum and I know that this question has probably been answered a million times but, what would be causing my 1991 5.0 to have surging idle (700-1250 Rpms) to the point where it dies or dies with the slightest touch of the pedal. The first i thought it might be was the IAC...
  2. A9P to A9L after a aod to 5 speed swap?

    5.0L Tech
    I have a odd idle issue ever since I swapped to a 5 speed and I don't know how to resolve it. I idle surge (occasionally but enough to want it to stop) after I come to a stop light from driving. Sometimes it will drop to low idle perfectly, others it will drop straight to dieing, AND sometimes...
  3. 89 5.0 running problems

    5.0L Tech
    hello, to begin with i just got my mustang back recently from a mechanic, swapped the block because mine was cracked due to an idiot who didnt put antifreeze back after flushing radiator, anyway i get the car back and its running very rich, so rich it burns your eyes cant stand to drive the car...