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  1. H

    Feels sluggish but no proof

    So I've tuned the 99 Yukon with new air filter, plugs, oil change, transfer case change, new serpentine belt and tensioner. BUT when I first start driving it just feels like the power isn't being transfer to the ground. I can hear the engine, rpm don't seem high, but just no guts. What should I...
  2. H

    Compression test?

    While I was working on the Yukon today I decided to run a compression test and have a few questions. All cylinders were between 170 - 178 on the dry test. After I finished I realized I should also do the wet test. You guys think it's required? Are there baseline compression numbers for the 5.7...
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    Where is the transfer case drain plug? 99 yukon

    Have a 99 Yukon and I just changed the seals on the transfer case and was going to do a complete flush of the system and add new fluids but even after looking in the Haynes manual can't find the drain plug. I even took the shield off. I can see the fill plug but below that there is no drain...
  4. H

    Oil leak by radiator

    Have a 1999 Yukon 5.7 that is in really good shape but has started sprouting some leaks. I have oil leaking out of the front of the truck by the radiator. Every morning there is a small puddle. I pressure washed and regressed the engine bay and think that the leak is coming from the drivers side...

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