Deve, you were spot on! After I cleaned out the line, the original gauge was fine. Found that the red plastic tube from a can of WD40 would fit the ID of 1/8 line great, so first filled it and let it soak, then used air. Biggest headache was working under the dash. Other option was to remove the whole cluster, but I had just enough room to wiggle the wrench so I did it that way. Going back, the old fittings were stiff and hard to get started by hand. So I learned a trick: chucked up the nut in my cordless drill, careful not to touch the threads (they go around anyway inside the chuck) and let 'er rip for a minute or so. Just like new. Thanks for your help.'
Harry
