Worked for me ..just throw in a bottle of Chevron Techron in gas tank and see what happens. Cheap way to fix problem(hopefully). Prevented me from buying a new fuel sender on my 85 380SE. My gauge would jump all over the place , then setle down and be ok but then start jumping around again. Now it works fine.

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95 E420 ( 76K) SOLD
85 380SE(125k)
95 SL500(72k)