Fuel System Vacum

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Jul 30, 2003 | 09:39 AM

Red Ride

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Joined: Aug 2002

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From: Chesapeake, VA, USA

Fuel System Vacum

Whenever I go to fill up my 94 Sol's gas tank and the gas tank level is low, I notice that when I take off the gas cap that the fuel tank is under a partial vacum... is this normal?

Jul 30, 2003 | 09:46 AM

luti

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Joined: May 2003

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From: The Holy City, USA

Re: Fuel System Vacum (Red Ride)

Vacuum, or pressure? It's a pressurised system and should vent when you open the cap.

Jul 30, 2003 | 10:00 AM

Red Ride

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Joined: Aug 2002

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From: Chesapeake, VA, USA

Re: Fuel System Vacum (Red Ride)

Now you have me wondering................. it sounded like it was under a vacum..... and sucking air into the tank..................but................. maybe it was venting air out???????????

Jul 30, 2003 | 11:02 AM

976

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Joined: Jul 2001

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From: Extraordinary Machine

Re: Fuel System Vacum (Red Ride)

It should be pressure being released...

Jul 30, 2003 | 11:21 AM

1_bad_EF

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Joined: May 2003

Posts: 475

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From: Gone Fishin in SE, Wi, USA

Re: Fuel System Vacum (976)

the fuel pump pressurezes the fuel line not the tank.gas is being sucked out of the tank causing a low pressure. When u open the filler cap the pressure equalizes (vaccum) It is normal.