Question about 2001 Buick Century
The only hoses that should go from engine through the firewall, are the Heater and Air con hoses.
If the hose has been replaced, the heating settings may have been mis-set. The PCV valve is nothing to do with them - it regulates the oil sump pressure and engine emissions.
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Posted on Jun 17, 2008
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Posted on Jan 02, 2017
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