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  #1  
Old July 18th, 2008, 05:57 PM
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Brad Harris
1994 d90 300tdi "Nola"
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tdi fuel issue?

I searched and couldn't find this anywhere so after 5 days I'm posting...

300 tdi runs like a champ, starts immediately every time but if it's been sitting a while since the last time it ran it will die after about 1 second and has trouble re-starting. It really seems like a fuel issue but I'm not sure what to check. If I park it on even a slight hill and face downward, the problem doesn't occur at all (so of course the immediate sollution is to only park on hills).

Any suggestions on what/where to check?
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  #2  
Old July 18th, 2008, 06:23 PM
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Langdon Hill
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fuel issues

Have you replaced your fuel filter and cleaned and primed the water seperator? I always run with a second fuel filter and a small 1 gallon tank of diesel or biodiesel blend to prime the filter and water seperator. Do you notice any stains from parking? If you are parking on the street it is more difficult to notice. I recently saw spots and replaced my fuel injector overflow lines. The fact that the event is less when on a slope makes me think there may be an issue with the water seperator as it seems to me to be more effected by gravity and slope.
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  #3  
Old July 18th, 2008, 06:28 PM
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Brad Harris
1994 d90 300tdi "Nola"
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I ordered a new fuel filter just in case but didn't think the symptoms really made sense for that to be the problem... the water seperator I didn't think of however.

I'll check that too thanks!
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  #4  
Old July 19th, 2008, 06:33 AM
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oil soaked filter
95 RRC 300tdi
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I not the above, I'd guess that you it is sucking air somewhere on the low pressure side probably in a loose connection somewhere bettween the tank and the lift pump.

Also crack the bleed screw on the fuel filter and check for a good healthy flow at idle. If not then suspect the lift pump itself. Seem to have seen several of these go bad recently. Junk pattern parts.
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