surging idle

68mustang5.0

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THis has been happening for like months now. Whenever my car is warm, and i come to a stop, the idle drops, then comes back up, then drops, as if the car wants to die. IF im in park or neutral and i rev, the motor does the same thing. COuple times the car has died, and in traffic too! So far i have cleaned the IAC, replaced the TPS, cleaned inside the throttle body and plenum, seafomed the motor, and just this morning i cleaned the MAF, and its still doing it! My auto has a shift kit too, and when i shift into gear, it shifts like it normally should, but it feels like it wants to die sometimes. Im going crazy! Any idea what it could be? thanks!
 

DropTopPony

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maybe the IAC is beyond cleaning and needs to be replaced...your symptoms are what mine were before i swapped my IAC and it fixed it.
 

95_302vert

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mine a stantard 95 gt and its doing the same thing i heard that there could be craks in the vaccum line that would do that
 

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