Quote:
Originally Posted by davepl
It only really take 4-7 psi to float a bearing and the general "race" guideline is 10psi per 1000 rpm, but if you're getting 20-40 warmed up that's fine in my book! I'd expect to see a little more when cold though. Unless the bypass is opening at 40.
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Since I’ve first noticed this it seems to only happen when the truck has sat for more than a couple days at a time. I can get it warmed up bring it home and let it set for a couple hours and get in it and it will jump straight up and hold a steady 40 lbs at idle. What is the bypass supposed to open at? I’m no mechanic and don’t know a bunch about these but I’ve had a lot of Ls trucks and never noticed this before. I’m just wondering if it’s something that’s usually ok or if I need to be taking it to a shop and where to even start.