fass issue
#1
fass issue
I have a fass 150 thats a few months old. I just replaced filters and everything worked fine for the last 400 miles.
The problem is When i false start the truck my Fass will not build pressure. When I start the truck my fuel pressure comes to 15 psi. IT seems like the pump is getting air locked if the truck sits for more than a few hours and is hard starting.
I have two gauges and they both have the same reading.
During my tests I checked all of my connections electrical and hoses.
I had a code P1689 come up then went away. It only appeared once. and has not come back.
Does anyone have any ideas on why i can only build pressure when the truck is running?
The problem is When i false start the truck my Fass will not build pressure. When I start the truck my fuel pressure comes to 15 psi. IT seems like the pump is getting air locked if the truck sits for more than a few hours and is hard starting.
I have two gauges and they both have the same reading.
During my tests I checked all of my connections electrical and hoses.
I had a code P1689 come up then went away. It only appeared once. and has not come back.
Does anyone have any ideas on why i can only build pressure when the truck is running?
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