Thanks Dave..

What are they symptoms of a bad check valve? Say intermittent?

Every time I have checked it, it seemed OK and I have never seen fuel in that line either. I have changed everything but this at this point.

I know loss of pressure in the tank, but if the tank had pressure and was full and somehow fuel was allowed back to the engine. Would it get back to the crankcase?


Thanks for your help and valuable insight..