E99 7.3 issues

[diesel22s]

I've had the truck for a few years, but ever since I bought it I have had issues with it starting in cold weather and extended cranking pretty much all the time. It puffs some grayish blue smoke when it starts in colder weather. I've pulled the oil fill cap off and no pressure comes out just some white smoke. The truck only has the tymar intake and 4 inch exhaust. I'm curious if you guys think I have a compression issue or injector issue or hpop issue? The truck has 240k on it and to my knowledge the injectors and hpop are factory. Thanks for any help I get.

[HVAC SuperTech]

Have you tried seeing if your glow plug relay is working properly? It is most likely your cause. To test your hoop or injectors you need a good quality scan tool such as a autoenginuity or the like.

Is your oil level in the resivior at the top when you take out the inspection plug up top?
It should be within a half an inch from the top.

[diesel22s]

Yes, I've checked the glow plug relay and also checked the reservoir on the hpop and it is full.

[tankf2008]

Anyone figure this one out cause my truck is doing the same thing it has a new relay and hpop is full but if I plug my block heater in for a bit it will fire up with a jump, this is my first diesel and its fun when it runs but it's really hard to start now the temp here in St. Louis is like 30 degrees n this is the warmest it's been

[HVAC SuperTech]

Its either the glow plug relay or your glow plugs....could be the wiring going to the glow plugs but not likely

[jesilvas]

Batteries, cables, terminals, glow plugs, glow plug relays, under valve cover harness to glow plugs, oil weight, time since last oil change. Just the basics.

[justinlogue5_0]

And when all those have been checked out its probably the injectors since its an E99. I have an E99 as well and went through this same problem with cranking it UNLESS it was already warm. Checked and/or replaced everything with no change. Then I installed my new injectors and on 12* morning with out it being plugged in I can let the glow plugs run there complete cycle(takes about 2 minutes total) it will fire right up and run perfectly. That is also with regular Rotella oil not the thin synthetic stuff.

[diesel22s]

Originally Posted by justinlogue5_0

And when all those have been checked out its probably the injectors since its an E99. I have an E99 as well and went through this same problem with cranking it UNLESS it was already warm. Checked and/or replaced everything with no change. Then I installed my new injectors and on 12* morning with out it being plugged in I can let the glow plugs run there complete cycle(takes about 2 minutes total) it will fire right up and run perfectly. That is also with regular Rotella oil not the thin synthetic stuff.

Thanks. That is the direction I was leaning but wanted some other opinions after checking the other possibilities.

[tankf2008]

Originally Posted by justinlogue5_0

And when all those have been checked out its probably the injectors since its an E99. I have an E99 as well and went through this same problem with cranking it UNLESS it was already warm. Checked and/or replaced everything with no change. Then I installed my new injectors and on 12* morning with out it being plugged in I can let the glow plugs run there complete cycle(takes about 2 minutes total) it will fire right up and run perfectly. That is also with regular Rotella oil not the thin synthetic stuff.

did you also have to swap out the idm? ive also been thinkin if it was the injectors swapping up to the newer/better injectors n idm.

[justinlogue5_0]

I had already swapped that out with Bean's one about a year earlier.