Help! My front bags are slammed, the pump is pumping and I hear a hissing. I took the wheel off this morning, oh I replaced the pump a few months ago, and resealed the lines with non hardening sealant. No joy, then I took the wheel off one more time and resealed the selonoid still no joy. Here's what's been going on, I normally keep my bags off, and only turn them on to get some air every few weeks, because the bags have a VERY small leak. Last night I turned them on when I was moving some stuff, and the front bags slammed to ground. the pump is new, healthy and pumps! I know the selonoids work because they were holding air, and opened to let the air out. I've tried a bunch of stuff, and really need some help. Some one please provide to me an answer, I love to drive my Mark!