Found the headlight relay. It's inside the electrical junction box under the hood, passenger side, behind the battery. The legend sticker is missing on my box. Searched and found this diagram:
Lately, my headlights have been turning themselves off for a couple of seconds then turning back on. And, now I notice there is a delay for about 10 seconds before they light after I turn the switch on. It seems like it might be the headlight relay. I want to look at that relay but I can't tell...
I had a similar problem. Although the truck rode fine and steered straight I eventually discovered that the idler arm bushings (plastic) were totally shot. I replaced the bushings only for under $6.
1987 Pickup 22R. The fuse box is on the passenger side wheel well just behind the battery. The label on top of the fuse box is missing. Could someone provide me with a description of theirs so I can make a facsimile? Thanks.
You won't need to replace the entire pulley, just the bearing. Remove the pulley, pull the bearing out and read the bearing code stamped on the outer bearing race or simply measure the id, od and width. It's a common bearing available at your local bearing supply or on eBay for cheap.
Sorry for the late reply ... computer problems. The problem has been resolved. It turns out that when both the CHARGE light and BRAKE light are lit it is an indication of an alternator problem.