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John Deere 5320 will not start. HELP!
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Posted by ClemBert on May 05, 2007 at 19:26:47 from (188.8.131.52):
I'm sorry if it was inappropriate to post this here but I've always posted implement problems here. A number of you experts have helped me out in the past so I didn't want you to miss this. This is also posted in the John Deere forum too. Please remove if this too specific as a tractor issue. Now my problem....
I have a year 2003 John Deere model 5320 with 600 hours on the engine. It is a 3-cylinder turbo diesel.
Today I attempted to start her up. She instantly fired up but only ran for 2 to 3 seconds then died. Numerous attempts to restart her were unsuccessful.
This tractor has faithfully started up for me the last 3+ years in the first second or two of cranking the starter. I last had her running two days ago without problem. The fuel filter was changed 5 weeks ago and I have put approximately 100 hours on her since. The fuel tank has a fresh 8 gallons of Mobile fuel station grade diesel. I added another 5 gallons today to increase the downward gravity pressure on the output line going to the fuel filter. I opened the water drain valve on the bottom of the fuel tank to verify good gravity feed of fuel and no water in system then closed the valve.
The diagnosis thus far:
The first thing I checked was for fuel at the injector pump. I loosened the bleed screw then operated the priming pump on the fuel filter a few hundred pumps. No fuel came out. The next thing I checked was fuel flow at the fuel filter. I loosened the bleed screw at the fuel filter then operated the priming pump a few hundred pumps. No fuel came out. Next, I removed the fuel tank cap to check for a cap vacuum problem and rechecked the fuel filter. Still no fuel came out. Next, I removed the fuel filter and noted that the fuel filter was 99% empty. I hand filled the fuel filter then reinstalled it then tried to bleed the air once again by operating the priming pump. Again, it appears as though the priming pump wasn't doing anything.
Possible conclusions thus far:
1. Priming pump is not drawing fuel from the tank to the filter.
2. Maybe the tank is somehow clogged where the fuel is supposed to leave the tank and go to the fuel line to the filter.
3. Maybe the rubber fuel line has a crack in it allowing air to enter the system.
1. Even if the priming pump on the fuel filter was inoperable this doesn't explain why the fuel filter emptied.
2. If the rubber fuel line has a crack in it I would have expected to either see fuel dripping or "wetness" near the crack but I observed none.
Has anyone experienced this problem before or know what the next step is in solving this mystery?
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