let em soak, the longer it soaks the better the chance it will let go!
2006 Chevy LBZ
3 inch MBRP downpipe with 4 inch exhaust.
Edge insite CS 85100, transgo jr shift kit, FASS 150, edge EGT sensor, Egr blocked off with blocker plate that can be removed when testing time comes
just bought truck 11/14 upgrades are coming as the cash gets in the bank account!
Working in a Gm dealership as diesel specialist , and no i don't half *** anything to make flat rate. its always done right and clean.