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How do you bleed air out of cooling system ls400 lexus 1996?

Anonymous

∙ 12y ago

Updated: 9/20/2023

Remove air intake sound dampener that runs across top of radiator one bolt holds it down near battery.Remove bleeder bolt above thermostat also disconnect top radiator hose.Pour coolant slowly into top radiator hose until it overflows out of bleeder above thermostat.Reconnect top radiator hose to radiator. Now go to expansion tank feed hose top passenger side of radiator and remove from aluminum pipe.Pour coolant into hose watching bleeder for bubbles until they are gone.Reattach expansion tank feed hose.Install thermostat housing bleeder bolt. fill expansion tank to proper level.If you squeeze lower radiator hose you can hear the jiggler valve click this tells you that there is a solid column of coolant good work.Run engine, test heater, watch temp gauge. If you have air in the system you will have poor heater operation at idle and high temperature spikes on gauge at idle.

Wiki User

∙ 12y ago

What else can I help you with?

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Look forward to a bill of over $2000! I had my 92 Lexus LS400 converted for $2,456! :(

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