bad fuel problems
 

Originally Posted by Mountainman
OK, this is what I have. 2006F 250 6.0 crew 4x4, I have a edge avantage programmer, Airaid intake ,and msrp 4" exhaust. Now the problem, first at 40000 mi I was able to get my first B100 biodiesel for my truck!! the truck gets about 17.6 to 18.2 on the hwy on diesel and 19.2 on biodiesel, great. Now after 20000 miles half of that I have been burning B100, I got some bad B100 at DFWbiodiesel in Dallas tx. Ran about 70 miles and the truck quite pulling!! pulled in to a parts store and changed fuel filters and it ran fine for about another 75 miles . So for every 100 miles I changed filters until there was no more dirt in the filters. Have put about 2000 miles on the truck since then and changed the filters 2 more times and they were clean. Now the other day the truck just died while on a town run. Took about 10min to get it restarted and went to a quick oil change place to have the fuel filters changed again!!!! there was nothing inthe filters , but the truck will not start. If you turn the key on and off several times the truck might start. NOTE since I had the bad fuel I have only been burning diesel. Now I have no Idea on what is wrong with the truck, Does any one have any ideas???? I'm new and don't know who to seed this to so please direct it the right direction. Thanks

Very possible the fuel pump plugged up, or worse the injectors. Might get lucky on cleaning the tank and filling with fresh #2, replacing the module and purging the system.

still not running
 

. that was one of the things that I did first. I drained the tank and flushed it with kerocene, back with diesel and checked to see if the fuel pump waas pumping. The fuel pump is pumping and the filters are clean . which module are you talking about? :argh: