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I have fuel leaking from the top front right side of the fuel tank. What could be the cause of this leak?

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You could have a bad fitting or line connecting to the fuel tank leaking over the top of the fuel tank and just dripping down the side. A road hazard (nail, glass, piece of wood could have been thrown up and hit the tank causing it to leak, or you could have gone over something like a curb or parking lot obstacle that could have damaged the tank. Someone will have to put it up on a lift and examine it to find out which. Have it towed, gas leaks are nothing to play with.

Posted on May 01, 2015

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Posted on Jan 02, 2017

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It bogg down on full throttle and gas leak on top of the tank while running


if you have a fuel leak from top of tank then it could be a fuel line or O ring leaking, which can cause a drop in fuel pressure causing it to bog down. if its a steel fuel tank the tank could be rotted out. either way fix fuel leak first and go from there.

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Finding fuel leak options with very little fuel in tank, leaks with addition of $5 worth of fuel?


Surely you can see the fuel on the outside of the
fuel tank or a rusted fuel tube under it

You should be able to find that issue in 10 minutes
IF you get under it

That is only 2 gallons added at a time

Wouldn't you think the fuel tank is the issue,if
it leaks without the motor running

Now you also know we can not guess from here

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Why is the car leaking fuel at the rear passenger side


trace the fuel line coming from the tank going to front of car and look for leaks. With a car that is 15 years old the gas line may be leaking

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I have a 93 Toyota Pickup that has a gas leak near the tank. Cant see where but fuel lines run to the tank and itt is in that area.


I've never had a problem with a sly leak-Usually I lose my gas tank driving over rocks, and you can see the remnants, or it's a cab-mount (No smoking, please!), but here's my advice: No matches! Take some water, add food colouring, and dump it on the tank. That way, the gas will push the water aside so you can see where it goes/comes from. My guess is right at the side facing front, or right up top, at the fuel vent or pickup line. Also check to make sure the fuel level sensor is tight, as is the fuel line entrance.

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1 Answer

When vehicle is running, fuel leaks from tank, if I shut the vehicle off and open the gas cap and release the pressure the leak stops. Could a defective seal at the top of the tank cause this problem.


the pressure in the tanks is not enough to "lift" the fuel up to where the seal is on the top. the tanks usually have the fuel pump and level sensor mounted in thru the top. actually if there was a leak anywhere above the fuel level in the tank it would not leak fuel but leak pressure which you would not see. it most likely is a rust thru spot on the tank, it only needs to be a small pin hole for it to leak and it can be very hard to see.

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I have a gas leak on my 2005 dodge caravan. it's coming from the top of the gas tank at the back, passengers side . i think thats where the fuel pump is ? could it just be a gasket leak?


check the gasket. and return fuel line. or the filter maybe clogged. or u may have a puncture in the tank itselfor something is causing pressure to build up

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I have a 1991 Toyota Corolla and I don't know what is wrong with my fuel hose, it leaks when I make a right, and when I fill the tank to a point. And I can't locate the problem, all there is, is a stench...


you need to get your car to a car shop so they can put it on a lift to see what is wrong. fuel leak can be very dangerous.
there is a fuel pump gasket on the top of the tank
there is a filler hose goes to the side of the tank
there are a pressure hose and a return hose go to the top of the tank
there are evaporation hoses on top of the tank as well.
rubber hoses are getting old and crack easily
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1 Answer

Changing fuel filter .


Just did my 2002 Grand Caravan today,
The filter will come with 3-hoses attached.
Use Safety Goggles to protect eyes from gasoline splash!
1. Disconnect Negative Side of Battery.
2. Depressurize the fuel system.
3. Jack up rear of vehicle. Use Jack Stands to support the vehicle.
4. Chock the front wheels
5. Use Jack with wood and raise up to the fuel tank (just to meet/touch) on the right side (midway portion) of the fuel tank.
6. Loosen and Remove 15mm bolt on middle-right side fuel tank strap-to-body.
7. Loosen and Remove 15mm bolt on rear-right side fuel tank strap-to-body.
8. Loosen and Remove the front 13mm bolt on the front fuel tank strap-to-body.
9. Slightly lower the jack - the right of the tank should begin to drop down 3-4 inches. NOT TOO MUCH: there is wiring connections you may damage!
10: Disconnect the body to fuel tank strap ground from the body.
11. On electrical connections:
a. Slide: Push/Pull back red connector lock.
b. Push on top of release.
c. Pull off the connector.
12. There are three fuel connections/hoses.
a. One on right side - towards the front.
b Two on the top of the tank on the pump. Note how far these are down on the white tubing connections.
13. The fuel connectors are quick connect type. At the top of the connectors are colored protruding tabs. Squeeze those tabs together and pull hose away.
14. If the colored locks remain on the tubes (not the filter hoses) bend the wings away from the tube and this will free them from the tubes.
154 The Filter is connected with a 10mm bolt. Unbolt and remove filter and hoses

When replacing: make sure you fully seat the hose connections. You should hear a click, and observe their position compared to earlier.
Before putting everything back together, reconnect the electrical switch and negative side of battery. Start van and check for leaks.

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3 Answers

Gas leaking from tank


This sounds like you have a leak at the fuel pump and sender unit, either in the unit mount or in a fuel line. Check under your back seat for an access panel if you have one then remove it and look at the pump and sender mount to see what is leaking, you may have to start the engine to get it to leak as it may only leak under pressure, hope this helps, let me know

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