Thanks trackrig
My MH has started for years with just the glow plugs (until this year). I turned on the block heater for a couple of days with no change. But that was before I load tested the start batts and replaced them. I can try that again. Should the MH start that way or would a glow plug issue still prevent starting? According to the equipment sheet I have it says 275 HP W/65P. There is a red switch by the drivers window by the jack and trans panels. I'm guessing that is a manual way to turn on the glow plugs - that lights up when I turn it on. Still below zero this morning but it's supposed to be 33 here for several days should give me better conditions to work in, tired of -20!