RX - 2nd Gen (2004-2009) Discussion topics related to the 2004 -2009 RX330, RX350 and RX400H models

How do I flush a heater core in a 2008 rx350?

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Old 01-09-22, 10:52 AM
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treydot
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Default How do I flush a heater core in a 2008 rx350?

I am not getting much heat from my 2008 RX 350.
The temperature gage pointer settles in the middle when the engine is run.
The actuators appear to be working.
Where do I find, and how do I access the hoses going into the firewall to the heater core so I can flush them?
Thnx
Old 01-09-22, 01:06 PM
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Mesquite77
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Look just to the left of the brake booster right under the windshield plenum.

Look at post #16, you can see the 2 hoses there going from center of engine to firewall.

https://www.clublexus.com/forums/rx-...nto-car-2.html
Old 01-10-22, 03:36 PM
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Felix
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Originally Posted by treydot
I am not getting much heat from my 2008 RX 350.
The temperature gage pointer settles in the middle when the engine is run.
The actuators appear to be working.
Where do I find, and how do I access the hoses going into the firewall to the heater core so I can flush them?
Thnx
How long has this been going on for? A quick feel of both heater hoses when the engine is warmed up would tell you.
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