Billy DFW

I have a 2003 Dodge with 168,545 mi on it. it has a 5.9L Diesel. I'm having a hard time starting it when the tempture gets below 50 degrees. I can start it easy if i can plug in the block heater , if i don,t it will not start. I can't always plug it in when i'm out and away from home. I'm fixing to go out of town and need to find out some things. I have chacked the two selonde's to the intake manfold heater and i have 12 v on the battery side and not on the manfold side , when the key is turned on . I did check the power to them and i have 3.69 v when turned on. I don't know if it should be 3.69v or 12v. I would like to find out what other things to check out. Help
Billy

bighornram

Sounds like a grid heater issue to me but i'm not to sure on how to tell you to go abbout checking them. If it were me I would wait till it was cold and then jump the solenoid for a few seconds then start it and see if it is any easier but that's probably not the correct way...

Hot Rod 4

My truck started this issue about two weeks ago. It is hopefully injectors and should find out from Don M sometime today or tommorrow. But these trucks will start even without grid heaters well below 50 F. The conculsion I came to about starting after being plugged is that the starter can spin the engine faster getting rail pressure at a higher level. Time will tell for me.