Ford Fuel System :: Small Leak Where Filler Neck Ties Into Rubber Hose That Runs Into Fuel Tank
Jun 30, 2010
I recently purchased a used 1999 F250 Super Duty with about 150k miles on it. The truck runs great and I have no complaints but there are a few things that need to be taken care of. It looks like there is a very small fuel leak where the filler neck ties into the rubber hose that runs into the fuel tank. There is a thin film of diesel along the side of the tank, on the leaf spring, the air bag and various other places. Nothing is dripping. I want to drop the tank and replace the hose. The Haynes manual says to depressurize the whole fuel system--is this really necessary if I don't plan on doing anything to the system aside from dropping the tank?
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I have a 1986 F150 6 cyl, dual tanks, no AC, manual fuel pump. Just recently, I have been having issues with the tanks. At first it seemed like the back tank was siphoning from the front tank. Now I have fuel coming out of my front tank filler neck. When I open the back tank gas cap, there is enough pressure to spray me with gasoline. I am not familiar with the fuel delivery system of my truck ...
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After my accident this summer with the Ex and TT, I have a fuel leak. It appears to be coming from the hoses between the filler neck and tank.
The part # from Ford for the neck and hoses is YC3Z-9034-AA. This part is no longer available! Even NAPA the go to place and pay thru the nose for shows it as obsolete from their vendor.
I am seeing RED at this since I had zero leaks until the body shop dropped the tank to replace the hitch. The BS and INS co told me prove it was not a dry rotted house and they would pay for it. What to do for the hoses?
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The fuel filler neck on my truck is very rusted. I'm very concerned because if it gets a hole in it I think I wouldn't be able to put gas in the tank. It's completely exposed to anything that the tire throws at it. Is there any way to protect it?
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I recently bought a brand new Toyota Camry LE 2014.5 and yesterday I noticed that the Fuel Filler Neck is very loose. It is so loose that I can move it using my little finger. Is this normal Or should I take it to the dealership? The car has 300 Miles on the odometer and yesterday was the first time that I filled it with gas.
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Ever since i have had my car i have had a slight problem re-fueling. The pressure inside the tank doesn't seem to vent correctly and the filler neck seems to back up with fuel and shuts off the pump (too much back pressure) when i'm only ~30% full. I can elevate the problem by re-fuelling slow enough so that the pressure can vent back through the filler neck but it gets rather annoying to sit at the pump for 10 minutes re-fueling.
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I have the dual tank setup & this is my problem.
Last year I replaced both tanks - the front was leaking bad and rear was starting to leak. After replacing both tanks, the rear tank (which I was using before) was unusable - it would idle fine and when applying throttle would stall out. The front tank's gauge did not work.
This week I pulled both tanks. Had new gauge assembly put on front pump unit. Also had the rear pump replaced with a new (rebuilt?) one. Installed both tonight. Now the front tank is running fine with a gas gauge. I Filled up the rear and once I had about 16 gallons in, fuel started leaking from the front top of the tank it looks like (where in-tank pump is). This leak has continued as the truck was turned off too. I think it may have stopped now, but its dark and I am parked on a hill. As another problem, I still have the same "stalling" problem. The rear will idle fine, but start to stall out when a load has been applied.
So to summarize:
- What is causing it to want to & stall out?
- Why am I leaking gas?
It seems to stop dripping gas after (maybe) the pressure is lower from leaking the gas out. Also, when 1st starting it up on the front tank, it wants to stall out...probably from the gas that leaked out while it was shut off? The truck will run for about 1/20th of a mile on the rear tank when initially starting it up before showing signs of stalling.
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Why the frame mounted fuel pump might run after the key is turned off? Then when you turn the key on it may or not run. If it does run it keeps running. shouldn't this shut off after pressurizing the line? is their a pressure switch in the pump that's failing? This has the 3 pump system...
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I have a '77 F250 with a 460. (Under edit) It has a holley 750 carb. (under 2 years old). It ran fine for about 2 years and now all the sudden it seems to not get enough fuel. I have a clear fuel filter on it and you can see that it is full of fuel when I first start it up. Just letting it sit there and idle after about 5 minutes it starts to show air coming through the lines and it gets worst the longer it runs.
If I take it out on the road and drive 55 it will be about 1 or 2 miles and it acts like it's not getting fuel. I stop and open the hood and check the filter and it is empty. What could cause this? I took it to an old Ford machanic and he has checked the fuel pump, fuel lines, sending unit, and gas tank. He is at a loss. I am no mechanic, but I am mechanicly inclined. I can't see it would be that hard to figure out. What do I do?
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It started out w/ my wife swapping from the front fuel tank to the rear tank due to the fuel qty getting real low. Then the next day when I drove it I had bad fuel qty and amp meter indication, I found a blown fuse on my fuel qty/amp meter gauges. I replaced the fuse and got my indications back. Now I hear my front tank fuel pump is running constantly when selected to its position. Its now full of gas and still runs constantly. The rear tank/pump operates normal. I am wondering if I ran that pump empty and lost its prime? What is the best way to burp it?
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This van has had a couple of fuel pumps, no surprise there, and i need to look through my paperwork and find out how many miles the current one has on it, but it has the STRANGEST habit I've ever had on any vehicle. Starts fine, runs fine, no fuel pump noise when van is running, and when you turn it off, the fuel pump creeks on and off for several minutes.
I mean a strange creaking noise almost like a shorted electrical device or a vehicle's brakes when you park it on a hill and the breaks creak as it settles into place. I'm probably doing a lousy job of describing this but i don't know how else to describe it!
ALSO, if you lay under the van and wait til it stops creaking, you can tap the bottom of the tank and it will creak for a few more seconds. You can tap repeatedly and make it creak more. Is it about to explode? Can i trust it on a road trip?
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My vehicle:
1976 F150 2wd Extended cab
390 4bbl
c6 transmission
4BBL Edlebrock Carb
Dual fuel tanks, only rear main tank connected
My problem: For the first year I owned the truck, everything ran fine and it started up really quickly even after it sat for a few days or a few weeks. I have since, for about the last year or so, had to crank it for 30-45 seconds to get it to start. This all started around the time my fuel pump went out. I replaced it with an Airtex fuel pump from Autozone. I also installed a glass in line filter before the carb in front of the distributor.
I noticed that after about 4-6 hours, the fuel had drained out of the filter and that's when I would have to crank it forever to get it going. It also seems like there is no fuel in the carb as it doesn't even try to start when it first gets cranked. I thought this was a bad pump, so I bought a new one last week and tried it again. Sure enough after about 4-6 hours, everything is empty again and it takes forever to start it. So it's not a bad pump, or so I think.
The other day I backed it into my driveway and left it, something I never do. I checked about 4 days later and there was still fuel in the filter. This makes me think that gravity is making it drain back to the tank.
Is there something that would cause this? Also I have found a one way fuel check valve online that is supposed to remedy this type of problem. Do they work for this situation? Or is there something else I should be doing to fix this? It has taken a bit of a toll on my starting system having to crank so long all the time. I have so far had to replace my starter, starter solenoid, and all the battery cables, starter cable, terminals, etc. due to excessive wear.
The valve I found is here : [URL] .....
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1990 f150
I have a leak in my rear fuel tank, the front tank has been blocked off and is not used, The leak is at the seam of the two part tank, once removed is there a way to seal this? or should I just replace it?
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I have a tank that's been out of my truck for a couple years. I want to clean it up real good inside before re-installing. Are there any products you can recommend that will give a deep clean on the inside to remove any gunk and some slight rust? Also, is there a product that should be used to coat the inside of the tank after it's been deep cleaned?
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I am unable to get fuel delivery from tanks to engine in normal operation. I can however get pumps working with jumper wire to them. It will start with ether but not stay running on it's own. Could this be a relay or something in tfi thing ?
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I just changed my fuel tank and now when I try to fill it up it keeps blowing back it never did this before.
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Just drove home a 2000 Limited from a used car dealer in NH to MA. Half way home, I stopped to gas up and noticed I was losing a small amount of fuel while pumping. It appears to be leaking from the filler pipe just before the tank, but there was too much splatter to tell for sure. No leak when not pumping, but the tank was only half full.
The dealer "guarantees" that the truck will pass MA state inspection. I'm sure a rusted out filler hose would result in a failure. The "guarantee" really means that he will buy the truck back should it fail, which is not really doing me any good b/c I'll have to start looking for a new truck all over again.
I'm unable to find a part # or pic of a filler neck for the Excursion. Is it the same as other Super Duty necks? Is this thing welded to the tank? That sounds like an involved, difficult fix.
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This is on my sig truck. I can hear the pump running, and a sound like fuel spraying around inside the tank, but not getting any up front to the carb. What is the most likely culprit for this? Can't get the bed off, or get the strap bolts loose, so I haven't been able to "eyeball" anything, yet.
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I'm dripping fuel on top of the engine at the fuel filter . Where the line ties into the filter canister, there is a small plate that's attached with small Allen screws its dripping between this plate and the canister .... I assume there is a gasket/oring that is causing it ...... What is the part number or correct description so I can go to ford dealer and get one. It's a 2007 Ford 4x4 6.0 diesel.
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I have a 77 f-250 with a 460 engine and a 4bbl Motorcraft carb and its leaking a substantial amount of fuel out of the newly replaced filter that is attached to the carburetor. The fitting is tight and I even tried buying some small gaskets to seat it, but that didn't work either.
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I have a 1999 Chevy Silverado 6.0 Ltr C2500 Auto tran Large Gas tank 120,000 miles. My gas tank filler tube vent hose has come off of its attaching point. It is still connected to the filler tube. I can not see where it connects on the other end. The small hose is long enough to reach the rear bumper on my truck noticed it hanging over the differential on the ground. Where to reconnect it to. I do have a check engine light showing. I fear my truck is falling apart slowly.
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