Truck idles erratically upon starting then smoothes out

Discussion in 'Chevy C/K Truck Forum' started by Copperheadcreek, Apr 11, 2014.

  1. Copperheadcreek

    Copperheadcreek New Member

    1993 Chevy c1500 5.7 v8.. 318,702 miles
    Idles super low on ignition ( about 200-300) for maybe 15 seconds or so then shoots to nearly 2k before evening out at about 600 or so. Occasionally will bog down and stall at stop lights ( maybe once a day or so)
    New fuel pump. New fuel filter ( changed it today) new Plug's and wires. New cap and rotor. New CTS. New air filter. Fresh oil change. Checked egr. Checked iac valve. Couldn't locate any vacuum leaks. Feeling pretty stupid at this point. The slightest hint would be so greatly appreciated will post a recording thanks.

    Here's the link to the Youtube:

    https://youtu.be/bK9rFuhbjQM
     
    Last edited: Apr 11, 2014

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