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:
fuel injector o-rings
every single coolant hose under the hood
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)
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.