rear window washer leaks at winsheild onto dash
How can the rear window washer leak onto the front windshield and dash ? 
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Must be quite a system to get from the rear window to the dash.
Fiat sure is inventive.
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Try cleaning the rear window washer
The pump and reservoir are up front so there has to be a way to get the fluid where it’s needed. Some older Acuras ran the supply line up the windshield pillar and along the roof. I suspect the OP’s minivan uses a similar arrangement. There’s a leak in the supply line that needs to be spliced.
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