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Q: strange maybe pressure release sound from right rear sounds like on inside

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strange sound coming from back inside right it sounds like pressure release i think kinda really hard to describe i do have a EGR code from engine light could that be from that

My car has 97000 miles.
My car has an automatic transmission.

A: Hello, thanks for writing in about your Dod...

Hello, thanks for writing in about your Dodge Grand Caravan. From what you’ve described, the noise is most likely from the A/C system being low on refrigerant. If you decide to get this fixed, have a certified technician, like one from YourMechanic, inspect your A/C issue firsthand and also diagnose the EGR codes that have appeared.

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