All of a sudden my 3B is taking three or four attempts to start. The starter cranks fine. The busbar has 12v dropping to 4v during the first stages of the glow cycle. Three of the four glow plugs have continuity, and one does not, which sucks because it is only a year old. I will be replacing that when I can get one, i.e., not today. I didn't adjust the valves, but dry compression on the warm engine is 400, 415, 405, 440 from front to back. There is no smoke of any color during starting attempts. Earlier when I was having glow problems I did see a lot of white smoke.
After a few tries the truck does start OK and then runs normally with no apparent loss of power. When I first experienced this problem my fuel gage was low so I assumed the tank was empty. I filled 3 gal in there and then pumped through and bled the injector lines at the injectors. No bubbles from the fuel filter, but when the engine is running and I crack the injectors they kinda spit all over the place, hard to tell if any air is coming out or not.
Could an air leak or trapped air cause hard starting that goes away after 3-4 attempts? I run biodiesel, B99 or B50 (winter mix) exclusively and have for seven years using the original fuel lines. The hoses appear fine, no sponginess. Could it be a fuel pump problem? Is one bad plug enough to cause this to happen?
Thanks for looking. Happy New Year.
After a few tries the truck does start OK and then runs normally with no apparent loss of power. When I first experienced this problem my fuel gage was low so I assumed the tank was empty. I filled 3 gal in there and then pumped through and bled the injector lines at the injectors. No bubbles from the fuel filter, but when the engine is running and I crack the injectors they kinda spit all over the place, hard to tell if any air is coming out or not.
Could an air leak or trapped air cause hard starting that goes away after 3-4 attempts? I run biodiesel, B99 or B50 (winter mix) exclusively and have for seven years using the original fuel lines. The hoses appear fine, no sponginess. Could it be a fuel pump problem? Is one bad plug enough to cause this to happen?
Thanks for looking. Happy New Year.