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Fuel tank


Homeboy 44's Avatar
CF Beginner

Join Date: Apr 2017
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Georgia

April 28th, 2017, 5:20 AM   #1  
Fuel tank

I have developed a vacuum in my gas tank as the level goes down. I am also using more fuel.

 
tech2's Avatar
CF Monarch

Join Date: Mar 2011
Posts: 5,235

April 28th, 2017, 8:32 AM   #2  
did this occur after changing the tank or sending unit? If not, try replacing the fuel cap...older vehicles used vented caps that relieve pressure or vacuum.

 
kevinkpk's Avatar
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April 28th, 2017, 4:21 PM   #3  
Posted By: tech2 did this occur after changing the tank or sending unit? If not, try replacing the fuel cap...older vehicles used vented caps that relieve pressure or vacuum.
Yes, you probably will need a vented gas cap.

 
Homeboy 44's Avatar
CF Beginner

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Georgia

April 29th, 2017, 1:19 PM   #4  
Posted By: tech2 did this occur after changing the tank or sending unit? If not, try replacing the fuel cap...older vehicles used vented caps that relieve pressure or vacuum.
Thanks, I'll give it a try. Would be a cheap fix.

 
Homeboy 44's Avatar
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Georgia

April 29th, 2017, 4:03 PM   #5  
Replaced the gas cap, no change. Do you think the float could be stuck? I've gone from 15 mpg to about 4.

 
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