Need help identifying a hose

Hello i need help identifying a hose my boot split on the outside of the 90 and now my jeep is running horribly i thought it was the pcv valve hose but online it says part doesnt fit my 2009 jeep liberty and part store telling me they dont carry one to verify in my picture its the ose im pointing at at the rear of the engine with the blue x on it

Thank you for your help

PCV valve hose

While you’re at it replace the PCV valve and the hose. Part numbers below. Not expensive.


The new hose AF is a slightly different design than the old one AD. It will work fine.

The reason it is running poorly is you essentially have a vacuum leak with the crack in the hose.

lfhoward said:

PCV valve hose

While you’re at it replace the PCV valve and the hose. Part numbers below. Not expensive.

53034065AA

53032993AD (AF)

The new hose AF is a slightly different design than the old one AD. It will work fine.

The reason it is running poorly is you essentially have a vacuum leak with the crack in the hose.

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Thank you i thought thats what it was I temporarily taped it up now my jeep is running way worse than before like trying to stall out bad

Any check engine light codes?

When in doubt, disconnect the battery terminals and tape them together for 30 minutes or so. Resets everything.

lfhoward said:

Any check engine light codes?

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My scanner says the check engine light is on due to high idle rpms checked the actual reading with the scanner it idles at 712rpm

Bcottrell said:

My scanner says the check engine light is on due to high idle rpms checked the actual reading with the scanner it idles at 712rpm

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My mpg is way down but i know thats due to the gash in the elbow of the pcv hose i just dont understand why its stalling out with the hole taped up