The new sensor unit didn't come with a large o-ring, go figure. So I ordered one for $.75, good thing that didn't come with the assembly, wouldn't want to break the bank. I should know tomorrow if it's still leaking.

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1987 300SDL 167k
1992 Volvo 740 140k
1990 Volvo 740 250k
1989 Volvo 240 269k

Anyone want to trade an old Volvo for an '87 300sdl?