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I have a 1993 CTD W250 that was sitting for about a month due to a problem with the battery. I have now solved that problem, but the truck will not crank. It doesn't seem to be getting fuel. I have tried hand pumping the lift pump & tried the bleed screw & cracked the lines. I have fuel coming from 4 of the 6 lines, but can't get fuel to come out of the last two. I have spent the past 6 hours trying everything I know to get fuel so the truck will crank.
Can anybody give me any other advice to help? I'm sorry I don't know a lot about these engines, so if there is any other information I need to post please let me know.
The truck was running great when parked & has a little over half a tank of diesel in it.
I was only able to get air bubbles out of the bleed screw. The 4 injector lines that were getting fuel had a good stream of fuel, but I never did get fuel to even seep out of the other two. The FSS had a good connection & voltage was good. I still don't think I was getting fuel pressure since I was only getting air from the bleed screw.
Just to be clear. I first tried cracking open the bleed screw and manually pumping the lift pump. After about 200 pumps it started to blow bubbles. Then after about 200 more pumps it quit, but no fuel ever came out. I continued to pump it until I had pumped 1,100 times total, and yes I counted. At this point I had not noticed any change (no air bubbles and no fuel leaking from the bleed screw).
Right or wrong, I moved to the injector lines and cracked them open 1 at a time and was able to get fuel out of 4 of the 6. I then decided to open all of them and got the same result as opening one at a time.
While 4 of the 6 were squirting fuel, it definitely did not have enough pressure to spray to the fender as someone above stated it should.
I was off work yesterday afternoon and spent about 6 hours doing all of this. I'm not sure when I'll get another chance to work on it. But when I do where do you suggest I start back? Should I go back to the bleed screw and pump until fuel comes out of the bleed screw?
I appreciate the help and will post any changes to the situation.
That was what I was afraid you would say. I was just hoping everything was ok since it was running fine when I parked it.
Since I know the fuel tank has over a half a tank of diesel in it, is there a way to narrow down the other four items on your list?
Should I just change the fuel filter to eliminate it?
This is my first diesel, much less 1st Gen Cummins so I'm learning as I go. I've had the truck a little over two years with very few problems, but I was able to solve them by reading these forums. This time I finally joined the forum and I appreciate your patience with me.
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