70 Deville fuel pump Q’s

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03-20-2019, 04:54 PM

Deville Dog

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Thread Starter

Join Date: Mar 2019

Posts: 1

70 Deville fuel pump Q’s

Replaced my fuel pump. Most likely orig. had one 3/8” port and one threaded feed . New pump has a 2nd port hanging off that is 1/4”. Noticed when i ran new fuel line that there is another pick up on the tank. Did there used to be a fuel return on these beasts back in the day? Am i OK to cap off the Additional port or run a return?

10-13-2021, 09:21 AM

TomSchaeffer

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Join Date: Apr 2015

Location: Canada

Posts: 14

Quote:

Originally Posted by Deville Dog

Hi! I am not sure about it, but I think that you need to check the vehicle history before and you will find out..

11-28-2021, 03:46 PM

Zx600e93

Junior Member

Join Date: Nov 2021

Posts: 1

Same boat haha

I believe that's the return line that goes back to the fuel tank, I've cleaned both lines out, replace all fuel hoses, and test the fuel pump for our recent buy a 70' Coupe Deville 😀