Hi all
I never had the return hoses run diesel when i changed them before. As i changed the hoses diesel just ran like it was under pressure. Changed two other cars this year and never saw this before. The car had been run about 2 hours before. Is there a vent in the tank? When i take off the cap there is a sucking sound.
Looked at the hanes manual no clue. what do you guys think?
car runs fine. This is my 1983 300sd. thanks Bill

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94 dodge cummings,86 ford 6.9,75 mbz 240d[ sold], 82 mbz 300sd,83 mbz 300sd