lexus rx 350 heater
#3
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Could be a few things:
1. Low coolant or air in system
2. Stuck Thermostat
3. Actuator motor stuck/broken
I would check the coolant first, it's fast and easy to add more and "burp" the system. Next would be to look at the actuator itself, if the motor moves while you adjust the temp, you should be in good shape. If not, this could be a hefty fix as some Toyota/Lexus models do not let you just change the motor. I haven't looked at my 330 yet but on my camry the dash has to come apart for repair of that. I find T-stats issues more common then the actuator.
1. Low coolant or air in system
2. Stuck Thermostat
3. Actuator motor stuck/broken
I would check the coolant first, it's fast and easy to add more and "burp" the system. Next would be to look at the actuator itself, if the motor moves while you adjust the temp, you should be in good shape. If not, this could be a hefty fix as some Toyota/Lexus models do not let you just change the motor. I haven't looked at my 330 yet but on my camry the dash has to come apart for repair of that. I find T-stats issues more common then the actuator.
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