Thanks for all the replies folks.

I just replaced the Timing Belt, Water Pump and T-Stat about a year ago. Used all NAPA Parts. The truck never runs hot.
Matter of fact, I just changed the oil today, then let it sit and idle for about 30 minutes while I tried to locate that stupid Idle Adjust Screw everyone keeps mentioning and the temp never rose above about 1/3.
Can anyone give me a better idea of where this screw is at?
This is a 3VZE/Manual 4x4.
It's not where my crappy Haynes book says it should be.


1991 4Runner V6(3VZE) 5-Speed 4X4 SR5
349,000 Miles and STILL Running Strong!!!