My brain hurts from trying to solve this problem...PLEASE HELP ME. I am having two possibly related idle problems with my 88 V6 4Runner.
1st) It used to idle at 800 rpms which is perfect and then when winter hit it decided to start idling at 1500 rpm. If I let it idle for about 20 mins it will come down but as soon as I drive, it goes right back up.2nd) when the brake pedal is depressed my idle hunts from 1000-1500 rpms. And for some reason when I engage the 4wd the idle hunting stops.
If anyone can solve one or both of these problems or offer any input it would be greatly appreciated.
Thanks for your help
Cory