Ok so I bought a Chevy s10 1988 4x4 ex cab 2.8 v6 about a week ago. I brought it home to do my usual tune up plug wires oil change ect ect. Anyway I noticed that my back blinkers weren't working but my front ones were. Aside from that my power window on the passenger side wasn't working. Bought new bulbs for blinkers and checked the plug nothing wrong with it however blinkers still not working. Have tested for shorts in the morning system and can't find any. A few friends have told me to check ground wires however cannot find any loose wires and all seem fine fuses are good am starting to lose my mind with it. Also on the power windows I got a new pigtail for drivers side door now passenger side window works but drivers side no longer works. Am desperate for any advice given thanks.