Out of no where my bronco will just start to have a sparatic idle. Truck will run fine for weeks, then all of a sudden at idle the Rpm will jump up and down a bit. Sometimes it will almost stall out, then a few seconds later everything is fine and it will not happen for the rest of the day. Just before it happened again but the truck died. It started back up but a few seconds later died again. They it took a while to crank over, I had to give it a little gas to get it to turn over. I took it out to lunch right after it started again and it seemed to run fine again. Stopped at auto zone and bought some sea foam, poured a can into the gas tank and 1/2 can into the crank. Going to do the brake boost line when i get home. Going to give it a few days to work and then change the oil.
What could it be? IAC?
What could it be? IAC?