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  1. Question: Blow By Questions

    6.5L Diesel Engine
    Background: 1995 GMC C3500 Crew Cab Dually 6.5L TB with the 4L80E with 248,xxx miles on it I have a question about blow by, if the truck has a lot of blow by (i dont know what deams as alot of blow by but its kind of puffing out of the filler neck and the oil dipstick tube) does that mean that...
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