What’s the hole on the side of the mechanical fuel pump for
01-29-2019, 02:56 PM
#1
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Year: 2001
Model: Cherokee
What’s the hole on the side of the mechanical fuel pump for
There’s a hole on the left side of my fuel pump on my 85 2.5 and It’s spitting oil out but I looked in the Hayes manual and there’s nothing that says anything about it there’s no hoses that lead to there no threds in the hole or anything I’m really confused about it and need help
01-29-2019, 03:24 PM
#2
Senior Member
My understanding is that it's a port that would allow fuel to escape if the diaphragm were to break. Probably also an air hole to allow pressure to equalize. You're sure it's oil, not gas? Is it seeping or rapid and steady?
Either way, sounds like it's time for a new pump.
Either way, sounds like it's time for a new pump.
01-31-2019, 09:13 AM
#5
Seasoned Member
They are future leaks, Get a pump. Really, they are made to do that it is a sign you need a new one. 
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