Have you checked the electrical connections on the filter head? At least a few of us have had leaks from the fuel heater connection. It is easier to find with the plug removed and the system pressurized by the primer pump.

It's the Heater connection that's leaking. Off to the freaking dealer

Well, just an up-date:

Got the leaking fuel problem repaired today after close to two weeks of waiting for parts.

What was the cause? What parts?

It's all in this thread; basically, the electrical connection for the fuel heater at the fuel filter housing was leaking. I found it through some advice from Goglio704 after complaining of a "No Start" situation that I cured by bleeding the fuel but was continuing to happen almost daily. I never had a problem until I plugged the heater in, which could just be a coincidence, but never the less, causing a solid leak that was also allowing air to seep into the fuel.

From the others this has happened to it looks like another weak link to watch. From now on, as a precautionary measure, I'll just do the quick plug in when it's necessary to warm up the fuel.

It's all in this thread; basically, the electrical connection for the fuel heater at the fuel filter housing was leaking.

Never had to plug mine in yet. Heated Garage. I wonder if RFCRD has plugged his in? I think his was the first to leak.

If you read a little slower, you'll notice that crdmike is talking about the fuel heater which is located on top of the fuel/water separator. This has nothing to do with the 110 AC plug that I believe your referencing along with not needing to plug it in since you have a heated garage.

When facing the fuel/water separator the fuel heater there are two electrical connectors already plugged in by the factory. The plug on the right is the circuit power for the fuel heater.

Just a question. Not really to Blake because I think he has other issues. You who have had the air leaks, is it possible that the leaks were created by over pumping, and bleeding and priming the fuel system? I have read that primer damage can occur if you over do it. Could this higher pressure have cause the seal leak at the electrical conection?

No, the only time you use the primer is to bleed air because the engine wont start. The bleeder diaphragm pressure is designed for that system.

I didn't know if excessive pumping damage was linked to the fuel heat area.

The pressure is working in the same area. This hand pump shouldn't generate enough pressure to cause damage. The leak issue is likely a failure of the ring/casting encasing the heater element but can't tell exactly because I didn't get to inspect the damaged part. Most likely it cracked allowing fuel to flow around the element and out the connector when pressurized. When the engine is running, it's under vaccuum thus air flows in slowly and is slowed even more by the seal on the electrical connector, thus hard to find.