This video explains how the heater core, duct system and cabin air filter works in many cars and trucks. For heater core replacement instructions click here:…
Full flow heater core system for car heaters, Volvo 850, S70, V70, etc. – Auto Information Series
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This video is a gem Robert – thank you very much – a few questions – from
what I understand the only way that outside air is getting in is through
the chamber where the filter is supposed to be – so if I have something
like an exhaust or gas smell in the cabin – that most likely means that
I’ll have excessive exhaust/gas smell outside of the car aswell? Because
the smell must come with the air through that chamber? (given that I don’t
have any leaking doors or something like that) –
Also – if there is ever a coolant leak on the floor – can you really get
that properly cleaned up from the carpet and rubber carpet? isn’t the floor
and carpet always going to be contaminated – feels like you are always
going to sit and inhale those coolant fumes – can’t be good?
Are the heater cores hard to replace?
If you get the heatercore leaking bad enough it does come through the
carpet. ;)