Anyone know what this is?

Junkyard Dog

Well-Known Member
Joined
Mar 21, 2005
Location
Sanford, NC
On a 289 cat skid loader. Looks to be on the return line, has a solenoid in the top of it. Works when I throw power at it. Just curious what it is? Electronic overflow valve? Having some trouble not running correctly sometimes.
 
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Maybe cold start advance according to this diagram, if it's the same pump. I just googled cat 289 fuel pump diagram
g03052730.png
 
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