Just (trying) to finish up this LIM gasket job on a 96 Lumina 3100 motor, thought I had the system all bled out and all, but when it actually runs (drives, road test) the SOB throws a low coolant light and eventually gets up to a hot light being on. Let me be clear here, I have replaced:
LIM gaskets UIM gaskets fuel injector o-rings every single coolant hose under the hood water pump thermostat (tested before install) power-flushed out the radiator, flowed 100% clean with a pressure washer (straight water, no chem, did a radiator swap too, didn't help) heater core
Been trying to bleed out the system (with heat on high and blower on
1). What seems to be happening is the coolant is backing up into the overfill reservoir, as if there's some sort of restriction somewhere or air is somehow getting into the system?
I'm about ready to put bullet in this thing and put it out of its misery, unless someone has some suggestions for me. Thanks.
-GV