I have a 2004.5 that the vacuum pump started running almost continuously. I tried checking the hoses for leaks, but am having trouble finding anything. If I kink the hose in the soft rubber area the pump turns off. Are there any areas that are more likely to leak than others? I took off the zip ties, but the hose looks good underneath. I cant tell if I can feel a leak under the pump or not.....

 

If you bend the hose and the pump stops, that means there is no leak @ that point to the pump... Try bending the hose a little farther along, away from the pump, till you find it doesn't stop the pump anymore, your leak is between this bend and the previous 1...

 

Had the same problem - shop actually figured the diaphram in the pump was leaking and replaced that with no results. Turned out to be leaking from a rub in the small diameter soft line.

I didn't find the actual leak until we pulled the whole line out and replaced it with tougher stuff.

 

At the "T" right after the pump.

Plug one side no change
Plug the other side no change
Plug both, pump turns off.....

 

That doesn't make a lot of sense. Either the 'T' fitting itself is leaking or you've got more than one leak.