Discussion in '5.9L 12 valve Cummins' started by braboy, Jan 22, 2012.
a friend has a 12v and is getting fuel in the oil what can cause this
The pump is cam driven, and fuel can leak past and get in the oil there (though more of an issue for the VE pumped trucks with diaphragm lift pumps).
The fuel injection pump uses engine oil to lube the cam and governor mechanism.
Cracked and leaking fuel injector body
thanks will start to look at this stuff
Mechanical lift pump is the issue. Get a FASS or an AirDog 150 and bypass the mechanical pump.
You must be new here.....
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