Loud cackle at 1/4 tank??!!

[seandbl]

Every time I let my fuel get down to a little above 1/4 tank, it starts to cackle loudly. If I fill it up it clears out back to normal. I have done this may times and the results are the same. I was wondering if there's some o-rings that need replacing that would cause this or if I should drop the tank and check the pickup/sender for air leaks etc. Any help would be appreciated.

[2005F250]

More than likley your gauge is broke. Reading 1/4 tank when really empty.

[jngreen]

nope bud, you have air getting into your fuel lines.

Read here, ITP Diesel, L.L.C.

there is alot more info out there you just have to search for it...... there are fixes for your problem.....

[jngreen]

read Number 3 from above link.....

[seandbl]

Thanks , I just ordered the pre-pump kit from ITP, This sounds like the fix for my problem. I thought the gauge may have been off at first, until it only took about 18 gallons to fill it. Thanks again

[2005F250]

Originally Posted by seandbl

Thanks , I just ordered the pre-pump kit from ITP, This sounds like the fix for my problem. I thought the gauge may have been off at first, until it only took about 18 gallons to fill it. Thanks again

Sweet my moms truck is in because her gauge is broke and Ford said everything was fine untill the foreman drove it home and ran out of fuel right below a 1/4 tank.

[seandbl]

This has been happening for about 6-8 months and each time it has taken 17 -19 gallons to fill her up. I know it holds more than that. I was thinking that there may be an air leak in the pickup, and obviously it has happened enough for someone to make a kit to help fix it ( ITP saves me again). I was thinking it was a "sucking air" problem since filling up instantly cleared the loud cackle at idle. Thanks again.

[Lord Tauk]

The cackle is probably there all the time, really listen to your warmed up idle - poke your ears under the front fenders.

My truck has cackle at idle regardless of how much fuel I have, Non-PSD owners wouldn't know, and it's hard for myself to notice it but it's there, I'll try the regulated return someday. I've goten down below 1/4 tank and it still sounded like a normal 7.3 to me, nothing gets louder so I guess every truck is a little different with the issue.

[jngreen]

yes Dave, every psd is different with their cackle problems. It is not really a problem unless you notice a loss of power along with the truck running poorly. If it gets that noticable, then its time to take action.

[Lord Tauk]

Agreed.. but you would surely know if there was a ton of air getting in there.