Your responses convinced me that an air leak is the most likely cause, but it still makes no sense. The reason I am saying that is that if the air leak is past the pre-filter than It should not make a difference how full my tank is. It should be there wether I have a full tank or not. On the other hand, if the air leak was somewhere in the vicinity of the fuel tank, than, once I start the car, it should take awhile for the air to make its way to the Injectors. Yet the condition that I described happens immediately after I start the car.

Having said that, and agreeing that a pin hole is the most likely cause, in which section of the fuel delivery system would such a pin hole likely be. Would it necessarily be a visible leak? What is the best way to find it?

Thanks

Phillip

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'95 E300 Diesel, 264,000 Miles. [Sold it]