Hey guys....I'm working on a 67 lesabre 400 convertible for a friend. It has the 340 4bbl in it. Changing the fuel pump and noticed the replacement has 3 connections on it. The one that's on it has only two. It is a A/C car and that's the pump he ordered. My question is....what is the smaller push on connection for? You have your normal inlet and outlet fittings but theres a extra. I can't seem to find anything about this and why is there a difference for A/C and non A/C for a fuel pump? Thanks in advance.
Return line to the tank. Block it off if there is no return line.
Steve B.
67 GS 525 Buick Stage IV
66 GS Convertible
65 GS HT
63 Riv
02 Subaru WRX Turbo
03 Ford Cobra Convertible (Factory Supercharged)
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