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What is a P0456 error code for a 2004 Dodge Caravan?

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Anonymous

 ∙ 18y ago
Updated: 10/24/2022

It's a leak in your evap system. Causes: *Loose or missing fuel cap. *Evap canister broke, hose cracked or not connected. *Purge or vent solenoid defective *Vacuum leak at engine This is what a diagnostic test told me about my 2003 D. Caravan with the same po456 code.

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Wiki User

 ∙ 18y ago

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