I Smell Gas!!!! - Club Touareg Forums
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post #1 of 36 Old 2 Weeks Ago Thread Starter
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I Smell Gas!!!!

Another bug to fix. REad about the fuel pump gaskets, etc. failing and leaking gas.

I'm 90% sure I have that problem.
Underside of fuel tank is wet in large areas.

You can smell gas by the rear tire fender, etc.

Does this sound like what I have?
Is there a CHEAP solution?
Thanks.

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post #2 of 36 Old 2 Weeks Ago Thread Starter
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No one??? hmmm...

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post #3 of 36 Old 2 Weeks Ago
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Sorry about not replying. I was waiting for Nooby to chime in as the master mechanic of the group. There is no cheap solution aside from patching the refuel port, and still have to replace the hose later. I did a patch using fiberglass shroud and resin, but after awhile (2 years), the detergent and heat caused the bond to come off, and the same issue again. Cheapest is to replace the hose, if it's cracked, with a bit of time to access the hose. Make sure the seal between the hose, gas tank, and gas cap housing is nice and sealed during installation.

- Leo

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post #4 of 36 Old 2 Weeks Ago Thread Starter
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Refuel port is on the right. I have smelled gas on that side at first. Now I usually smell it by the driver's (left) rear wheel.
Are there fuel pumps and seals and filters on both sides of the tank?

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post #5 of 36 Old 2 Weeks Ago
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No. It sounds you may have a bad leak/seal on the driver's sides pump. Remove your rear seat, and access the pump(s) below the rear seats. This will show you the possible condition of the seal for your pump(s). If there's no scent of fuel inside the cabin, and not ponding fuel above the pump(s), you may have a cracked fuel line. I'm surprised the system didn't throw you a code for a fuel line vacuum.

Order that I tend to inspect:

1. Check for crack(s) on the refueling hose and sealing/connection point that lead to the tank from the fuel port. Bad crack tends to meander based on the crack. If there's a crack near the fuel tank entry point, the gas may pond and flow to the passenger's side.

2. Check the fuel pump area since you're already there in checking the refueling hose connection to the tank. Check for any crack, or bad seal.

3. Check the tank itself. Oh, this is a biggy. The boys that I hang with tend to puncture their tanks from debris going off-roading, or just driving wildly through the city's streets. You'll be surprise how rocks and metallic object can do damage to the tank during the Mad Max driving style. This is quite true for those who work in construction fields, who love to do donuts during break times on loose gravels the size of marbles. We sent our work vehicles in for repair on the fuel tank and mufflers before our boys like to do stupid stuff in the field at construction sites.

- Leo

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So, to inspect number 1...the fuel filler hose,
Do I need to remove the rear seats?
Can it be inspected from below the truck or other?

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post #7 of 36 Old 2 Weeks Ago
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Sorry the delayed. Got called to prep a presentation. Photo of an Audi. Similar design. Hose connection to tank is on the bottom of the seat. The quickest way to access/view the connection is from the bottom of the vehicle.
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post #8 of 36 Old 2 Weeks Ago
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Garage
I had the same situation within a month of buying mine. Ended up being a crack in the plastic dome of my fuel pump. You access from under your seat and taking off the chrome covers. I had a friend do mine and it took him about an hour to complete. The part was a little pricey even after a discount but and it's a easy fix. If you youtube it there is a video on how to do it.
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post #9 of 36 Old 2 Weeks Ago
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As T'reg owner, or any vehicle, we need to learn, understand, and be ready to get our hands dirty in performing light and easy repairs. This is considered as a moderate repair, which is doable by any vehicle owner. Proper tools are needed of course.

We are so dependent on specialists that we've become complacent. We all need to be jack of all trades to a certain level. With that being said, who says you can't have a bit of dirty fun while you're learning...that goes for fixing the car too

- Leo

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post #10 of 36 Old 2 Weeks Ago Thread Starter
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Fun is fun...
Gasoline is something different.
We'll get her looked at tomorrow I reckon
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