Replaced the fuel lift pump on my Cummins ISL
On my first day back in the US after three weeks in Canada my ISL started acting like it was starved for fuel... not wanting to make more than 50% power even on small hills. Pulled over and changed th...
Forum Discussion
I'm curious, to have air drawn into the system there must be a vacuum or a lower pressure than atmospheric, to cause this there must be a restriction on the suction side of the pump.
Have you checked the tank venting?
this could cause your 30% low pressure readings of the lift pump.
Have you checked the tank venting?
this could cause your 30% low pressure readings of the lift pump.
