dmax surge tank bubbles

[tx dave]

hey guys, new to forum, long time gm diesel owner. I own an 01 dmax, injectors changed @ 175K. last june 07. oct 07 started gettin bubbles in surge tank, changed t-states (no help), told by dealer I had blown head gaskets( like I said, long time diesel owner, told the dealer he was full of it) hydro carbon test proved me right. anyway I don't want to go on and on over stuff that has been stated before BUT my water pump started leaking so i had it changed, system flushed and now no more bubbles in surge tank. water pump had a broken fin (stated by dealer mechanic). just thought I give the information. it might be of some help out there.

[Kennedy]

That's an interesting one. Keep us posted as to if/when it comes back. Myself, I think that it will. You might have to run it hard, but it probably will. I've seen injector cups re-sealed thinking it was the cause. It seemed to fix it for a while, but it came back.