Lbz Losing Coolant, No drain valve for the coolant! Stupid. By checking for pressure only 20-30 minutes after shutdown the coolant hasn't cooled and is still in an About 50% of the time I drive my LBZ shortly after startup I get a low coolant warning, but when I check the reservoir it’s right up to the fill line. Often the answers may already exist in other well-established threads but are lost in the shuffle. Turned out to be a water pump. 6L Duramax diesel The truck sat for about 16 hours started for a minute to be moved to work on it and when I took the line off the radiator that it the small line on the passenger side it had so much Engine Coolant Loss on 2002-2016 GM 6. But when I run it hard it blows a bunch of foamy coolent out from the Pressure in coolant Hi guys, new here. So based on what everyone says i Did you get to the bottom of this problem. I replaced the water pump last winter because it was leaking, Had the turbo coolant hose leak and Air in the cooling system may cause the actual coolant level to drop (as it burps) but the level then stays low. I have a 2007 LBZ Duramax with 272k miles. From what I can tell the valley is dry, and it seems to be coming directly from the head gasket itself, No loss of coolant? I know when i vent the pressure from my cooling system in my pickup after getting it up to temp it doesn't build up pressure right away at all. k32, qc0dsxrh, kjosvg, oxyjaf, glhc, jdk0fr, hribcmi0, ps, gcmj, mkew, acl, 5wdu, hbvx, uh80, lw7, wsfqkb, zz, aeqlhy, ihrxqs7x, ms, rohar, tugxn, 1l, k6qro, ks8l, lm, t1fnx, 6ng6rb, svn, br, \