Problems
#1
Problems
2003 cummins having problems with starting cold weather 35 degrees here leave block heater plugged in all night still no start next morning have replaced relays for grid heaters and also ambeant air temperature sensor cleaned battery connections ground tested heaters do get hot they only stay on for few second then on again few seconds later. also second factory lift pump on fuel filter housing runs for about 30 seconds what do yall think
#2
Banned
I'll bet you have a fuel system issue of some sort. If you have your trucks block heater plugged in you would not need your grid heater to work at all. Your 100% sure your heater is working? Often times your engine itself will be warm enough to not call for the grid heater to turn on.
#6
Registered User
Back to morning brew . . .
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