I bought an '82 FJ 60 last December. I really love it and it runs great but for one thing. The wipers make a real weird noise when set on intermittant. It's kind of a medium pitched squeal (EEEEH..EEEH........EEH) that comes out near (or from) the the air vent on the far left side of the dash. The noise kind of comes and goes but doesn't seem to have any relation to when the wiper blades are moving. Has anybody else ever experienced this? How can I fix it? It works fine (for now) except for the noise. It doesn't make a noise when the wipers are set to the fast or slow positions.