Low fuel level- Normal behavior?

[Ajax MD]

If I understand correctly, the HMMWV fuel tank (especially the old style) has no kind of baffles in it.
The fuel gauge oscillates quite a bit during acceleration and braking.

When you get down to 1/4 tank or so, is it normal that you might occasionally grab some air as the fuel sloshes around or should you be able to drive it down further before any bad behavior starts?

 

[Coug]

There is a baffle around the fuel pickup to prevent that from happening.

If it does happen, it's likely that the baffle around the pickup has separated from the bottom of the tank.

 

[Ajax MD]

Great, thanks for the info.

 

[Coug]

Basically just a box around the pickup that lets fuel in from the side to trap fuel during uphill/downhill/acceleration/stopping so you don't run out quickly.

The below links show images of it.

A2 fuel tank question

What's with the extra port on top makes by the orange circle (shipping plug) Sent from my iPhone using Tapatalk

www.steelsoldiers.com

https://i1.wp.com/www.hummersurplusparts.com/wp-content/uploads/2015/07/HMMWV-Expanded-Fuel-Tank-Assembly-Hardware-12460105-5717437-2910-01-447-3911-1.jpg?fit=2592%2C1301&ssl=1