Here's a good one for u 129 owners. the valve down inside your windshield washer reservoir can fall apart with age. there is hot water coming from the engine cooling system to heat the water inside the reservoir. well for months I've cursed the wiper system. with coolant leaking into the washer water,needless to say, it doesn't clean windows wortha ---t. I never would have caughtit save for never having to fill it. No matter how often I used it wouldn't go down, which was often, didn't do any good but I kept trying. but when It started gaining gound on the level, even I could figure it out. why they have a valve there is beyond me. so this may be a help to someone. use only CAR window cleaner in your reservoir, no ammonia.I replaced valve and the wiper works great now and it's cool to have one wiper again.[8D]