Catbyrd1

Still do not have any heat-but AC is working check fuses heater fuse was blown still no heatcan anyone help

Catbyrd1

I have a 1991 LS400 & 1999 LS400 both R very nice looking car

johnnyg66

Did you have heat before you changed the compressor??

Coolant level or stuck thermostat.

sha4000

iTrader: (1)

If you have no heat you have to make sure your coolant level is right, Thermostat is not stuck open and there are no leaks in the radiator and hoses.

timmy0tool

iTrader: (7)

i am willing to bet there is air in the coolant system. you need to bleed the air out using the following method.

http://www.lexls.com/tutorials/cooling/coolant.html

aomdedude1

You posted this a while ago, but I would also agree with making sure your cooling system is fully bleed. There is a bleeder screw right at the top of the engine. Also check that this valve is working:



Mine was actually leaking when I bought the car. I have since replaced it (cost 114$ IIRC ) and the heat works perfect now! Basically melts your face off.