How do I bleed the cooling system on a 1992 Isuzu Rodeo?
engine cooling not A/C cooling of humans...
fill it slowly at rad.
with the hightest hose removed at one end.
not put it back. (hose)
repeat with rad cap off. filling,,, AF. (antifreeze is AF)
get the rad full of 50% AF
cap off, start engine and stop it when the coolant starts to overflow.
if the coolant drops add some now. running.
if it overfills. good, that normal (hot AF expands pure physics)
then cap the rad.
drive around block.
come back park .
let it cool, and check cap level at rad neck
add AF to fill
then drive around block again. and check cold again.
is it now stable, its ready to rock. (drive)
if it is not , there is a problem.
if now good, put the correct level in side overfill tank.
make sure all hoses there are good.
this is an art form , no engine stated, here, just Rodeo
there are 4 engine here, in uSA. for one car.
but my answer above covers most engines.
but there are some exceptions on some...
the thermostat must have the bleed (jiggle pin,etc) on the up hill side. on all engines. or it will be hard to bleed.
just dont drive a long ways until, the cold rad proves (cap off)
that it is really full.
then get the side tank working, with the hoses good so it
can suck back AF when cold, or it will drop each day. driven.