cdc is right fill the filer first with clean deisel,don't know about your tranny but fitted a Patent filter had the same probs,put the old seal ring on the new filter and hey presto,different thicknes.You are probably drawing in air from a bad joint/connection,if it aint sealed and air tight it wont work,the end.
Rich
December 2010
would remove the filter again and manually fill with diesel and refit
cdc
December 2010
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