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Old 03-02-2003, 07:43 PM
RKreutzer RKreutzer is offline
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Join Date: Sep 2002
Location: Kingsport, TN
Posts: 375
Hi unkl300d,

the check valve is screwed into the fuel pump on the exit side and the banjo fitting is connected to it (at least on a W126). I guess it is there to keep the pressure up in the line once the car stops, i.e a one way valve that blocks the return of the fuel. I don't think it has anything to do with your problem.
Reinhard Kreutzer
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