Keeping tank full vs refueling on E

KRS

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Re: Keeping tank full vs refueling on E

because the fuel needs to cool it.
 

michael-lagrange

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Re: Keeping tank full vs refueling on E

Waterinthefuel;<br /> one of these days your gonna learn to listen to your father!
 

ZmOz

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Re: Keeping tank full vs refueling on E

Originally posted by Xcusme:<br /> While we're on the subject of fuel ,tanks, and pumps, can someone for the love of Christ, please explain to me why auto makers put the pump inside the tank??
Same reason they put the oil filter sideways between the oil pressure sender and starter solenoid, causing broken senders, sparks, and a huge mess at nearly every change. They want you to get mad, say "F this", and go to the dealer to have it done. (where you have to pay them several hours of labor because it's so difficult)<br /><br />
Originally posted by KRS:<br /> because the fuel needs to cool it.
There are plenty of aftermarket external pumps and even a few stock units that have no cooling problems.
 

Xcusme

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Re: Keeping tank full vs refueling on E

Originally posted by ZmOz:<br />
Originally posted by Xcusme:<br /> While we're on the subject of fuel ,tanks, and pumps, can someone for the love of Christ, please explain to me why auto makers put the pump inside the tank??
Same reason they put the oil filter sideways between the oil pressure sender and starter solenoid, causing broken senders, sparks, and a huge mess at nearly every change. They want you to get mad, say "F this", and go to the dealer to have it done. (where you have to pay them several hours of labor because it's so difficult)<br /><br />
Originally posted by KRS:<br /> because the fuel needs to cool it.
There are plenty of aftermarket external pumps and even a few stock units that have no cooling problems.
Thanks,I just wanted to see if I was the only one here that thought that this stuff was just plain nuts. Take something that should be simple and make a complete mess out of it. When I'm King Of The World, I'm going to mandate that every engineer/designer HAS to work on what they design...period. :mad:
 

Ron G

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Re: Keeping tank full vs refueling on E

I'm going to mandate that every engineer/designer HAS to work on what they design...period. <br /> <br />
Best idea and theory yet :D
 

one more cast

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Re: Keeping tank full vs refueling on E

And I thought the "F" was for "Forget it, you don't have that much money" :D I almost always run my vehicles near empty before refilling. My '02 truck at 71,000 miles still has the original fuel filter. I do try to keep them full in the winter months.
 

BoatBuoy

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Re: Keeping tank full vs refueling on E

Originally posted by Xcusme:<br /> please explain to me why auto makers put the pump inside the tank??
Whenever I've worked on vehicles, I've always believed that location/method/design consideration was primarily for the expense of manufacture and ease of assembly. Repair is always secondary or not considered at all.
 

markvan

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Re: Keeping tank full vs refueling on E

I agree boatBuoy - it all comes down to cost. and the mfg's biggest concern when designing a vehicle is "how much it will cost to produce on an assembly line"
 
D

DJ

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Re: Keeping tank full vs refueling on E

In tank fuel pumps are indeed "cooled" by the fuel.<br /><br />While noise is a major factor in determining pump health, it is also deadened by a tank more than half full.<br /><br />The MAJOR contributor to fuel pump health is the fuel filter. Since they are out of sight and out of mind, nobody services them anymore.<br /><br />I've silenced more than one in tank pump by changing the fuel filter.<br /><br />BTW, I rarely ever let my tank go below 1/2. What's the point? It costs the same/gallon to fill it from empty or 1/2.
 

ZmOz

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Re: Keeping tank full vs refueling on E

Originally posted by DJ:<br />The MAJOR contributor to fuel pump health is the fuel filter. Since they are out of sight and out of mind, nobody services them anymore.
Nobody services them anymore because most aren't meant to be serviced. According to the factory service manual on my Jeep, the recommended change interval is exactly never. For slightly newer jeeps I believe the filter is a permanent part of the pump and they have to be replaced together.
 

Gary H NC

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Re: Keeping tank full vs refueling on E

I have noticed on my chevy Tahoe the pump sounds like its making a high pitch humming noise.It has been doing it about a year now.So a filter change could help?
 

ZmOz

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Re: Keeping tank full vs refueling on E

Originally posted by Gary H NC.:<br />So a filter change could help?
Possibly, but more likely it's time for a new pump.
 

tommays

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Re: Keeping tank full vs refueling on E

:confused: All my GM cars still have them and they get changed KINDA of expensive to let the fuel injectors be the filter :eek: <br /><br />tommays
 

sloopy

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Re: Keeping tank full vs refueling on E

Originally posted by rwise:<br /> besides what Dad says, most newer vehicles have fuel pumps in the tank and need fuel around them for cooling purposes. No it wont go up in flames if it overheats, but it could die. Besides they can be hard to change and costly to boot!
TRUE! Just ask me about my $2000 dollar repair to the fuel system in my suburban. All because I used to run it to E then fill it up all the way! Now I take it to half tank and fill it.
 

KRS

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Re: Keeping tank full vs refueling on E

Partially filled tanks collect condensation.
 

phatmanmike

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Re: Keeping tank full vs refueling on E

i usually put 4 or 5 dollars in when it gets to E cause im a cheap azz baztard~
 

youngboater

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Re: Keeping tank full vs refueling on E

I run my tanks down to the E almost every time. Why do I do this? Because If I have a big tank I'm gonna use it. If I wanted a 10 gallon tank I would have one. I've owned several vehicles over the years and have never had a problem. Some people just seem to paranoid about getting the last drop of energy out of your fuel pump. So it dies a little early, big deal by then it already has over 100k anyways and then you don't have to worry about another one until the engine goes. I say your dad is being on the safe side of things but in the end it barely makes a difference.
 

heycods

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Re: Keeping tank full vs refueling on E

I try to keep the tanks full on all my tractors and trucks, cuts down on condensation. I sure top my vehicles off every time Im in town. Im a good ways out in the country and dont kep gas on the farm any more. ( it dosnt store well) Besides Im to lazy to walk 5 to 10 miles because I was stupid and ran out.Sometimes it is hrs. befour a car passes out here in the sticks.
 

BF

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Re: Keeping tank full vs refueling on E

Woman my wife works with had to get her new (1 week old) van towed into the shop when it died... service manager calls her to say it's out of gas... she says "But the light never went on!!"... Turns out the van didn't have an idiot light for fuel. <br /><br />So, some people (probably lots), drive until the little light tells them they need to think about buying fuel (and a latte) :)
 

waterinthefuel

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Re: Keeping tank full vs refueling on E

Hey guys, how do you put the "originally posted by" label in your reply? I know how to do a regular quote, but what do you do for that nice neat label?<br /><br />Nevermind I just figured it out. You click on that little person with a thing coming out the side of his head next to the post you want to quote.<br /><br />Oh, by the way, I certainly appreciate all the replies and ideas on this. I never expected so many opinions about this. Thanks again.
 
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