gas leak

[corollagirl96]

I have a fuel leak. My fuel lines are very rusty at the point where they bend upward, right before the gas tank. Both the drivierside fuel line and the center one are leaking.

Whats the best way to repair these?

The driverside fuel line goes into a connector, which attaches to a plastic line. That connector was seized so I had to cut the plastic line behind it. There shouldn't be any problem with clamping the plastic fuel line down onto a hard metal fuel line with clamps would there?

How much work is it to run all new fuel lines from the engine bay back?

[cipher93]

You need to replace the fuel lines. You're probably looking at somewhere between $250-$400 to have a mechanic bend and install all new lines, given they are not available after market. Ask around here for what people have paid. I was originally quoted $400 on them a year ago, but got them done this year for less than half that with some other stuff (axle boots, brake lines, and inspection namely). I would get brake lines done at the same time as well as they probably aren't far behind and will save you a bit of money on labor to have them done at the same time.

[speedy25]

I've done this job before but I havent had to do any plastic lines on a Toyota.

Replacing all the lines is definitely best. You WILL get more leaks later if you dont.

Use two hose clamps when going from steel line to rubber hose on the pressurized line.

If you have to use the plastic line over, I have bought connectors made for these lines at NAPA. You might have to look around some.

Yeah, and dont forget those brake lines while you are under the car like cjrocker noted.

-SP

[hungt1999]

I did this job last summer, replacing all the fuel lines and the rear brake lines. It is not hard, just awark because you have to work under the car and it takes a lot of time. If you can find a DIY garage where you can rent a lift, it would make things much easier.

The thing is the process of removing only one line can affect or damage the other lines because they run parallel to each other and are hold together by a series of brackets and spacers. The lines cross each other at some point. If your lines are rusted, a slight disturbance or movement can break it, such as disturbance caused by removing one line.

The 5 lines are:

1- Fuel main supply (with arrow on your pic)
2- fuel return
3- Evap canister
4- Left rear brake
5- Right rear brake

All these lines can be bought pre-bent at the dealership but that would cost more (I paid $90 each for the main fuel supply and the fuel return lines). For the brake lines, I bought generic steel lines that I bent myself. If you bent your own lines, you will need to buy a flaring tool for the hydralic connections (be careful, our cars use the double flare type, not the bubble flare so don't buy the wrong tool)

I would highly recommend to buy the 2 fuel lines pre-bent and DIY.

Having this kind of job done at a dealership will be very expensive because of the long labor involved.

Don't go cheap by cutting out the leaking section and replacing the cut out section with a short hose and clamps. It might work for a short term and you don't know for how long.

P.S. from your pic, it appears your 2 rear brake lines are not original and have been repaired at some point by the lazy method (the 2 hydraulic couplings below your green arrow on the picture) If I were you, I would replace the brake lines too.