Gurgling sound in the cab

SOURCE: Blown Head gasket/Affordable repair?

The average sale price for a 91 Lexus in the US, is $3900.00. Used radiator would be around $200.00. Machine shop to machine the head (highly recommended) $500.00 to $1000.00. Gaskets and hoses another $200.00. I don’t know how much you have into it, but I hope this helps your decision.

SOURCE: coolant leaking on manifold, steaming.No hose or radiator leak.

i think its going to be the head gasket duto the way its leaking coolant. one of the water jackets maybe i would have it checked to be sure but it sounds like head gasket

SOURCE: blown head gasket

Look the engine over and see if you can find any external leaks, change the thermostat and make sure that fan(s) are operating.
Check the oil for water...loosing that much, it has to show up somewhere. Blown headgasket usually puts oil in coolant or coolant in oil, causes an external leak from between head and block or goes out through the tailpipe as steam.
look carefully and you will find your problem!!

SOURCE: Oil leaking into coolant -- not head gasket

check the transmission condenser or oil cooler built in the radiator..

SOURCE: Hi, my 2004 nissan pulsar is overheating. has a

Hey there,
I've just had an ongoing problem with my 1990 Pulsar overheating.
Mechanics checked everything: electric fan, airlocks, leaks, etc
Car continued overheating intermittently for months - finally the mechanic put a non standard thermostat in, one which activates at a slightly lower temp that stock.
Problem is now resolved.
Hope this helps,
Michael