the thing is I cant get my fuel blead to my fuel filter. I did at first it started and ran good for a sec. then died cause it is getting air in the system. I tryed and tryed bleading it at the fuel filter. could the fuel heater be the cuase of the air in the system

yes, the fuel heater can be the cause of air in the system - thats why people remove them.

Have you ever replaced your rubber fuel lines? There are 4 in total - 2 supply and return at the tank and 2 supply and return at the front of the truck.

Well I by passed the fuel heater. oh besty purring and running like never before. Thanks everyone for the info. dam fuel heater

:U:

how did you bypass the fuel heater ? I am having the same problem it was -5 this morning truck started ran well then act like it ran out of fuel. I put some 911 in the tank and it did not seem to help so I believe I may have an air leak as well. It is up to 10 degees now with the 911 in it should be fine. It starts runs well then quits 4 or 5 minutes later.

i also eliminated mine beacuse of air leaks. is very simple just change your fuel lines to bypass the heater

ha that thing is a heater? ha I thought those were little on block lift sumps lol I heard, on ole 12v the they had lil pusher pumps on the block. well that makes sense now lol ya those rubber hoses have a tendency to leak I got an old 12v on a stand and im tryin to fire it up before I put any money into it lol how long does that heater run for? just start up or continuously?

I thought I had a geling problem with the cold Put a quart of DFS in system did nothing put 8 oz of 911 in tank still same . It would start and run out of fuel could not get over 1000 rpm. I removed filter expecting to find ice filter looked fine. changed it anyway and put half 911 in with the diesel fuel that was in there. bled and same problem. It was not getting fuel to injectors . Took hair dryer to the injection pump. Truck started and is running well now so blockage was in the injector pump. probably crappy fuel . I will be more diligent where I get my fuel. Since the temp has risen above 40 the dfs I previously put in is well mixed. I drove the truck an hour expecting another deep freeze tonight . We will see if I have cured the problem.:jump::jump: