Heater issue-passenger has no heat 07 TriLtd - Page 4 - SB9T.com

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Old 11-01-2018, 11:12 AM   #61 (permalink)
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I thought I would add to this thread as I had something very similar happen to our 2008 Tribeca recently. Turned out to be our radiator was failing and I think it also had a partial blockage inside the heater core. Purchased a new radiator and ran a flush before removing the old radiator (no sense in flushing trash into the new unit) and like magic the heat works just fine now.
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Old 02-21-2019, 04:37 PM   #62 (permalink)
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Default Heat after flush

my wife has been complaining about no heat on passenger side so I did this and hoped for the best. pulled both heater hoses from engine blew air through until all coolant was out. raised rubber hoses and filled with CLR and let sit for 30 min. blew it out in reverse flow into a clear container with the compressed air. then filled with water and did the same several times. once water was clear. the bucket had brown water with several bits of rust and crud. reconnected hoses and I have great heat on both sides now. hope this helps out
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Old 02-22-2019, 09:46 AM   #63 (permalink)
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Your lucky! Many have had to replace the heater core due to this exact issue. Something in those heater cores from 06-07 is corroding and creating a blockage in the core.
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Old 01-02-2020, 04:33 PM   #64 (permalink)
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New to Subarus...had to rush replace my radiator and now no heat on passenger side. The heater hoses come off the rear driver's side of the motor correct? I want to try to flush the core before replacing it. Thanks in advance.
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