I had an 86 that did this. I found a diaphragm in the carb had worn a pinhole sized hole in itself through use. It happened right around 250,000. You might want to check those. It's on the side and does not require a carb rebuild. Once I found the problem it was easy to fix.


1993 4Runner SR-5 4WD V-6 Auto Trans
1990 Pick-up (Hilux) 2WD SR-5 V-6 Auto Trans