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fuel tanl size

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Old Nov 29, 2005 | 11:01 PM
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fuel tanl size

ok im in an argument w/ my mom right now about how many gallons are in a 90 f250 7.3idi non turbo 2wd reg cab long bed w/ dual tanks the things is even if i run a tank dry i cant seem to fill either one over about 16 or 17 gallons and useally on a dry tank i can only get 15 i think the tanks are 15 she says they have to be 20s what are they cause neither one of us can really prove the size of them to where the other will belive it
 
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Old Nov 29, 2005 | 11:42 PM
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When you mean dry tanks are they in fact at the E mark or still at around 1/4 full although they ran out of fuel.....

F250,Pickup,RWD,133 IN. WB,Diesel Front - 20 GALS.

F250,Pickup,RWD,133 IN. WB,Gas Front - 19 GALS.

Son NEVER argue with your Mother.......why ........ask your Dad.
 

Last edited by PLC7.3; Nov 29, 2005 at 11:51 PM.
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Old Nov 30, 2005 | 12:20 AM
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Son NEVER argue with your Mother.......why ........ask your Dad.
lol thats funny but im not worried about sleeping on the fold out when arguing w/ mom like dad would be and when i say run dry i mean the truck shut off out of fuel dry
 
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Old Nov 30, 2005 | 12:31 AM
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There is a known problem with the fuel pickups on our trucks, the screen falls off and you will not get the last 3-4 gallons. The truck will run out of fuel, but there is still a reading on the gage of around 1/4.
 
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Old Nov 30, 2005 | 08:06 PM
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Originally Posted by PLC7.3
There is a known problem with the fuel pickups on our trucks, the screen falls off and you will not get the last 3-4 gallons. The truck will run out of fuel, but there is still a reading on the gage of around 1/4.
ive seem that empty but still reads a 1/4 tank but next tank it will go to past e and still be running for 10 20 miles
 
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Old Nov 30, 2005 | 08:10 PM
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All our trucks have a bypass valve on the fuel pickup at the 1/4 mark its, the reasion for this is if the fuel were to thicken and gel up it would clog the screen at the bottom of the pickup, the suction would open the bypass valve allowing you to burn the thicker fuel. on the older trucks the valve can get weak allowing air in and the pickups are also known to get cracks in them, ford does suggest in cold weather that you dont let the tanks fall below 1/4
 
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Old Nov 30, 2005 | 09:44 PM
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If I let mine get below 1/4 tank it will run out of fuel. I have run it dry on the front tank with a 1/4 tank left on the gauge but I havent tried it on the back tank.

What is involved in fixing this?
 
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Old Nov 30, 2005 | 09:54 PM
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well ive run both tanks to the 1/4 mark and have it die while other times it will go below e before its empty and for the gelling idk if it does that any more which doesn't matter i run conditioner all year
 
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Old Nov 30, 2005 | 10:47 PM
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If there is a big enough drop from normal local temperatures you probably will get to experience gelled fuel even though you are running a fuel conditioner.

Depends on the brand you are using, but say temperatures dropped to 40 degrees below the normal for a few days.
Most fuel is blended for the average local temps these days.
But read your bottle and see how much of your fuel treatment it would take to drop a tank of fuel's "cold filter plug point" or "pour point" 40 degrees. It wll probably be a lot more than you are normally running.

If your normal average temp is say 10 degrees for a low temp and it suddenly drops to 25 below for a week I will bet there are more diesels gelled up than there is running.
 

Last edited by Dave Sponaugle; Nov 30, 2005 at 10:59 PM.
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Old Nov 30, 2005 | 10:54 PM
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well i run power service deisel kleen in the grey bottle and it ca in the valley cold here is like 40 for most people tho for me cold is when it hits 0 so in my case its never cold since the lowest ive ever seen is high teens not cold enough i think tho i didn't have the truck at that time tho i think it would have been fine i have seen 30s w/ this truck and it was not a problem ps works great started right up

on another note off topic that powerservice works great boost in power lowers gell point and cleans the whole system i pulled an injector and it looked new and it runs better w/ it just my .02 in case some one is intersted
 
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