Fixed one thing and now new problem....Help

[12VCrewCab]

So just finished up getting the rear main seal fixed on my 93 ITD with 47RH. Drove fine for around 25 miles or a little better and came home today and let the truck run in the driveway to cool down a bit and noticed an odd noise. The truck started to lope heavily and slowly shut down. When I went to start it back up it wanted nothing to do with it and wouldn't unless I gave a little pedal. Wouldn't idle but does now after running it up for a bit but still has a lopey idle and just isn't running right. No fuel in crank case that I can tell, and does not smoke while running. I'm still new at this whole troubleshooting diesel so I need your guys help please. I just want to enjoy driving my truck.

Thanks for any help you can give.

[ellis93]

How long did it set while repairs were done. Your fuel filter might have stopped up. That would be the simplest thing.

[12VCrewCab]

The truck sat for around 3 weeks before I drove it yesterday when it ran fine then this morning for a bit and then the blahh. I haven't changed the fuel filter yet but I do have a new one sitting here i'll try tomarrow. Thanks for your reply Ellis.

[ellis93]

Reason I asked was plastic fuel tanks tend to build condensation on the inside walls when half empty. You may have sucked up a little water or worse algae.

[12VCrewCab]

Ok thanks for the info. I'll give the new filter a go this weekend. I hope its that simple

[12VCrewCab]

Well thanks soooo much for the advice Ellis. Threw the new fuel filter on and pretty much fired up a ran great. I got alot of learning to do