what size is the fuel filter flare nut in the fuel line? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-24-2005, 04:37 PM   #1
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Default what size is the fuel filter flare nut in the fuel line?

what size is the flare nut on the fuel line? mine looks rounded alittle and none of my flare wrenches fits nicely, what would be the best way to fix this? would is be ok to cut off fuel line where the flare is at and put a fuel injection hose at the end with a clamp and get a fuel fuel with both ends that stick out?
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Old 01-24-2005, 04:42 PM   #2
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what year and trim do u have... are u changing ur fuel filter...
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Old 01-24-2005, 04:45 PM   #3
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hi my car is a 1995 bonneville SE model
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Old 01-24-2005, 06:49 PM   #4
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Just use the metric crescent wrench. Sorry I couldn't resist and I don't know the size.
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Old 01-24-2005, 07:36 PM   #5
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20 mm seems to ring a bell.I just use the metric adjustable and vise grips if there'* a nut on each side of the filter.Some PB Blaster or other penetrant applied a few times prior to the job doesn't hurt either.A little anti-seize applied to the threads makes the next filter change easier.
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Old 01-24-2005, 08:21 PM   #6
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20 mm is the size of the nut on the fuel filter, whats the size of the flare nut on the fuel line that goes into it?
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