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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-04-2007, 08:38 PM   #1
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i need to install a gas tank and i noticed to remove the old one i need to unscrew the 4 screws that hold up the 2 straps. what else do i need to take off to remove the gas tank?
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Old 07-04-2007, 08:41 PM   #2
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I've never done a Bonne but typically you'll need to lower the tank a bit and then reach in and disconnect the pump wiring before lowering it the rest of the way.

Same goes for the fuel filler neck if you can't get to it before you start dropping the tank.
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Old 07-04-2007, 09:27 PM   #3
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2 bolts. Only the front two. Then the straps pivot out of the way.

Disconnect the two fuel lines on the passenger side.
Lower the tank a little and disconnect the pump/sender wiring.
disconnect the filler hose and vent line on the driver'* side.

Blow off all the dust around the sender. NOT a VACUUM or any other electrical device.

Turn it counterclockwise with a screwdriver and small hammer. You'll need a new seal to put it back.
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Old 07-04-2007, 09:29 PM   #4
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Please, disconnect the battery first.
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Old 07-04-2007, 09:46 PM   #5
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That'* a good SAFETY but not actually much of a hazard. The tank is still sealed when you pull the connector at the tank, and that connector has no power to it with the key off.
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Old 07-04-2007, 10:04 PM   #6
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thanks alot prob gonna work on that tomorrow
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