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Port fuel sending unit

LexusA

Member
Joined
Jun 24, 2025
Messages
7
New to the forum and looking for advice on accessing the port fuel sending unit on a 2010 Four Winns 318 Vista. My fuel gauge isnt working, and I'm trying to troubleshoot the issue myself. I removed the fridge under the sink and found a small access panel (10in x 10in), but it doesn't give me access to the sending unit. Has anyone replaced theirs and can share how you were able to reach it?
 
That access panel size suggests you're on the right track, but you migjt need to cut a larger panel or access it through the mid-cabin floor
 
New to the forum and looking for advice on accessing the port fuel sending unit on a 2010 Four Winns 318 Vista. My fuel gauge isnt working, and I'm trying to troubleshoot the issue myself. I removed the fridge under the sink and found a small access panel (10in x 10in), but it doesn't give me access to the sending unit. Has anyone replaced theirs and can share how you were able to reach it?
Hmm, you're probably gonna have to go through the mid-cabin floor or expand that panel a bit. I had to do the same on mine.
 
Okay, that sounds right. First, check the deck opening close to where you fill up the fuel. If that's stuck, then you might have to lift the floor in the main cabin or loosen the fuel tank to get to it.
 
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