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PCV system S40-V40 2007

posted by  hammerhead on  Thu Nov 17 16:22 CST 2022
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last visit: Thu Oct 16 10:32 CST 2014
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2007 S40, non turbo, 191,000 miles.

Wife complained of fumes in the cabin, found the hose that connects to the oil filter housing and the top of the engine was torn. Car was bought used, unsure if the PCV system had ever been serviced. Replaced the oil filter housing and hoses.
The engine ports did not seem to be clogged, however there is still pressure at the oil fill cap and smoke coming from the dip stick tube after OFH replacement. Is my next step to drop the oil pan and identify clogs there or is there a process before that?

Thanks
Mike








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    PCV system S40-V40 2007

    posted by  jwalker on  Sat Nov 19 12:30 CST 2022
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    last visit: Fri Jun 6 08:39 CST 2014
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    Did you also replace the oil trap also known as the breather box? Clogged breather boxes have been issue for Volvos since at least the 240 days. Make sure the hose going into the breather box is clear too.
    --
    Will I buy another Volvo??? We'll see....








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      PCV system S40-V40 2007

      posted by  hammerhead on  Sat Nov 19 16:53 CST 2022
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      last visit: Thu Oct 16 10:32 CST 2014
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      Yes, Oil filter housing/ breather same thing, plus All hoses, comes in a kit.







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        PCV system S40-V40 2007

        posted by  jwalker on  Tue Nov 22 07:21 CST 2022
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        last visit: Fri Jun 6 08:39 CST 2014
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        Well, this was educational for me. Didn’t know that the newer 5 cylinder engines have a different PCV than the earlier models. So I read up on it a bit. Just a few thoughts. Does your engine have an EGR valve? If so, was it in the kit? Clogged EGR valves can be an issue in earlier 5 cylinder cars. One more thought. Are there any vacuum lines or hoses that are connected to the PCV system but weren’t included in the oil filter housing kit?
        --
        Will I buy another Volvo??? We'll see....







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