Consider it thickened.
Didn't realize the injection or vac pump was different from non ic to ic. Are there functional differences? I'm looking at this thing like someone scavenged it together from scratch one pick and pull at a time. A real you got peanut butter in my chocolate you got chocolate in my peanut butter situation.
The booster was the first suspect for me too-- but im pretty sure the booster is right. Certainly is one of the deepest ive seen.
With all the nonsense she still runs strong an clean (by diesel standards)... God bless America and god bless cummins.