Windhshield/headlights/rear window washers went belly up a few months ago. Went down and bought the little red capped plastic valve that goes under the hood insulation, but it only fixed the windshield. I've heard there are a couple more of these little check valves that control the washer fluid, that they lie buried somewhere between the engine and the front of the car. Can someone please please tell me where to look and what to look for to get my headlight and back washer working again? Dick