Fuel Filters change ISC Cummins
My 2005 Cummins ISC has 2 fuel filters. One has the water sensor and drain which Cummins manual says is the suction filter and the other is the pressure filter. I changed both filters but according to...
Forum Discussion
ScottG wrote:
Do the cycling of the key about 10 to 12 times. Makes all the difference for me.
Listen for the fuel pump running. cycle the key after it stops - if it stops. There was a s/w update to some Cummins platforms that causes the pump to continue running rather than stop. If it continues to run, you can hear it change pitch once the filters are full.
Maybe that was it, I only cycled the key 4 times but the manual said I only had to do 3. I did hear the pump running for about 30 seconds each time.
