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cj
cj 2/19/2011
1980 Chevrolet C20 Scottsdale 8Cyl7.4L - Engine
why will my truck idle fine, but lose power when driving?
my truck idles fine, but when i get a half a mile or so down the road it cuts out and loses power like it's losing vacuum. i had the carb rebuilt a year and a half ago, it ran ok after that til now. i have used carb cleaner but that don't seem to help.
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  • Bill
    Bill 2/19/2011
    Ithink you may have answered own question, EGR or hose vacuum leak.
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