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Questions about replacing fuel pump

Jerry Bransford

TJ Guru Moderator
Staff Member
Supporting Member
Joined
Nov 9, 2015
Messages
24,963
Location
Fleming Island Florida
What happened to manual fuel pumps on our Jeeps?
They were just too hard to crank while driving. :ROFLMAO:
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For mechanical engine driven pumps, they didn't work nearly well for engines once we went with electronic fuel injection. At least they were easier to change lol.
 

pagrey

TJ Guru
Supporting Member
Joined
Apr 10, 2018
Messages
7,726
Location
Los Angeles, CA, USA
High pressure mechanical pumps are way more expensive than electric. Diesel trucks have engine driven pumps that work at pressures high enough but they are very expensive compared to a dinky electric pump in the tank. Diesel injection pumps are well over $1k and ours are a small fraction of that. Like almost everything, cost is what put the pump at the bottom of our tank.
 
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MonkeyMike

TJ Enthusiast
Joined
Aug 13, 2018
Messages
108
Location
Arizona
High pressure mechanical pumps are way more expensive than electric. Diesel trucks have engine driven pumps that work at pressures high enough but they are very expensive compared to a dinky electric pump in the tank. Diesel injection pumps are well over $1k and ours are a small fraction of that. Like almost everything, cost is what put the pump at the bottom of our tank.

Yea…easy to forget carbureation….