gas problem

Reply Subscribe

Thread Tools

Search this Thread

Aug 17, 2014 | 02:29 PM

dcerjr

Thread Starter

1st Gear

Joined: Aug 2014

Posts: 1

Likes: 0

gas problem

I am new but looking for help. Ihave a 1971 corvette that all of a sudden poured all its gas on the ground but about to gallons left in tank. when i went to open the gas cap it seamed to have pressure or vacum. has any have an idea.

Aug 17, 2014 | 04:50 PM

71 Green 454

Le Mans Master

Joined: Jun 2006

Posts: 6,399

Likes: 1,226

From: Tampa Florida

Quote:

Originally Posted by dcerjr

I just replaced my gas tank yesterday, along with all associated rubber hoses at tank and fuel pump.

If the gas leaked out at the gas tank location, I would first look at the connection at the fuel sending unit. There is a short 3/8" hose that goes from the sending unit to the metal fuel line. How old is the gas tank and hose?

It could also be a leaking fuel tank, leaking sending unit, or a defective o-ring at the sending unit.

Aug 17, 2014 | 05:19 PM

MajD

Racer

Joined: Apr 2008

Posts: 406

Likes: 46

From: Lebanon OH

Quote:

Originally Posted by dcerjr

So where is the leak, and does it leak when sitting or when the engine is running? In the rear, the lines run from the fame to the top of the tank, and a rubber hose connects the line to the tank. If the leak is in the rear, then it's most likely the tank. If one of you fuel lines rusted through at a point lower than the tank, then there may possibly be som siphoning action that would drain the tank as well. I would not look at the rubber connecting hoses at the top of the tank as the cause because if they are compromised, then the siphon would be broken. There should be a large dark spot on either the frame or tank where ever the leak is.

If the leak is in the front, I would look at the rubber lines first, and then the fuel pump.

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last

Forum Jump