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Thread: HELP! Constant rough idle.. 2003 6.0L

  1. 11-22-2007 12:03 PM #11
    ff_jeff Guest
    57 k when i took it off. granatelle came attached to the kn intake I bought and then nelson tuned it so ....
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  2. 11-23-2007 01:24 AM #12
    Tootall
    Tootall is offline Senior Member
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    Join Date
    Apr 2003
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    League City, TX
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    138
    maybe your IAC valve on your TB ?
    Mine - 04 Crew Cab Silverado 2500, 6.0L - L92 heads/intake - 4L80e - 4wd
    Wife's - 08 Trail Blazer LT - stock - every option - slow !
    Vid of my old Silverado 6L <---
    99 Fountain - 27ft Fever - 502 mag MPI :-)
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  3. 11-23-2007 02:01 AM #13
    ff_jeff Guest
    we will see I might have more, after the wife wrecked it tonight.
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