Recent content by 86runner

I will look in my manual on the airflow meter checkouts and send them to you; you will need a digital multi meter. When you start the engine does the idle go up for a bit and then slowly go down, if not you may have a bad aux air valve. One of the problems on mine was that it was hard to...

The Toyota factory service manual has a pretty good trouble shooting guide, and will have you check all of the sensors with a digital multi meter. Have you looked at the spark plugs, do they show signs of a rich fuel mixture? How new are the plugs, wires, etc? The way I found my problem was...

I have an 86 runner that was given to me my mother, and I am just starting to feel the effects of what 20 years of NORMAL use on a computer controlled engine can led to, such as $200+sensors. I only like the 1st gen. runners and think that they are great but unless the seller of the truck you...

when the A/C is turened on the engine needs to be idled up, the valve with the white screw will make the adjustment, as long as the electric switch controling it is functioning correctly. The switch is mounted on the top forward part of the engine valve cover and will have two small vacume...

check the air intake tube and rubber boots, it solved an idle problem on my 86 runner. also make sure that all of the vaccume lines are in good shape, as our trucks get older the rubber lines dry out and crack. i would suggest to get the FACTORY toyota 4runner manuels, they will be most...