on the 82 FJ40 I had a crazy chirping noise coming from the dash area, it started a few years ago and has gotten worse.....to the point it was driving me mad. It was odd, the it only chirped when it warmed up to operating temp. Has no relation to speed, gear or anything that made since. I thought maybe that might be the speedo cable....so I put a new OEM one on......but nope it still chirped.
I went around time and time, tightened some bolts and stuff.....no love. Lubed the chasis and suspension. Next step was to put it on the rack and start checking from below.
While waiting for the rack to open, I went thru a pile of new parts I had, put on a new inner and outer shift boot, new boot retainer(I had lost the old one) I also put on new rubber the hood rests on(sides and front) as well as new window pads......it was at that moment I found the noise.....when I undid the hood hook it made the same springy chirp. Took it for a drive and no more chirp! so somehow when it warmed up the springs in the semi new OEM hold downs started to make a chirp noise. Amazing.....
also got the bypass hose from Shipmag put on, didnt need it but hey........?