After install my ground was not neutral when the lights were turned on. This resulted in a backflow of veggie oil into the diesel tank. A more appropriate ground was established, electrical issues seem to be worked out, but now I'm still seeing the original fuel gauge slowly moving up after running a lot of veg oil through.
I believe as a result I have had gunk come loose in my tank, have had to clean filters more frequently, and am about to clean out the fuel tank. I am wondering if maybe some of that gunk has gotten into the valve and is preventing full closure. Is this a reasonable possibility to examine, or should I start elsewhere?
Also can anyone send me to a good source related to chasing down vacuum leaks with a mityvac? I think I have several, but most obvious is the dreaded door lock and engine kill symptoms.
Thanks in advance