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I've installed two (two different cars) in the past couple of years.
Each one had an issue sticking "closed" and not letting hot coolant through the heater core. In one case, I simply disconnected the vacuum line to leave it open, and in the other case (current car) I'm going to see how it evolves. Heat works fine on cold mornings, but doesn't always come back if the interior warms up while parked, and the system calls for the valve to bypass the heater core in "cooling" mode.
I may very well just bypass the whole thing if it continues into the fall when we will need heat regularly.
I do find it interesting that both new valves have had an issue with sticking.
~Peter
_______________________________________
Current:
'03 9-5 Aero Wagon, 5spd, Polar/Black
Past:
'06 9-5 Combi, AT, Polar/Black
'04 9-5 Aero Wagon, AT, Nocturne/Granite
'03 9-5 Aero Wagon, AT, Steel/Charcoal
'00 9-3 Viggen, 5D, Silver/Black
'93 9000 Aero, 5MT, Cirrus/Black (Owned this one twice)
'86 900 SPG, 5MT, Edwardian/Buffalo Grey
Posts in this Thread:
- Anyone else noticed lower quality of heater bypass valves?, NCCaniac
, Wed, 8 May 2019 06:50:52- Re: Anyone else noticed lower quality of heater bypass valves?, Boris Bubbanov, Thu, 9 May 2019 09:34:59
- Thats really saying something....., Itsasaab, Thu, 9 May 2019 07:02:30
- Re: Anyone else noticed lower quality of heater bypass valves?, PGAero
, Wed, 8 May 2019 08:50:58 <-- Viewing This Message - Re: Anyone else noticed lower quality of heater bypass valves?, Justin, Wed, 8 May 2019 08:01:51
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