At higher mileages (125,00+) the Engine Coolant Temperature Sensor may intermittently stop working, especially when the vehicle is fully warmed up. This can result in illumination of the Check Engine Light and/or an engine stalling problem.Google+
Car Problem Reports
Toyota T100 Engine Coolant Temperature Sensor May Stop Working at Higher Mileages
Toyota T100 Problem
Engines Affected: 2.7L 4 Cylinder, 3.4L V6
From cold start, after engin runs about 15 seconds the temp indicator in the instrument cluster swings all the way to the peg on the right (high temp) and stays there.
Visitor, 1995 Toyota T100, 2.7L 4 Cylinder, 165,000 mi
current temperature sensor flashes and cut to aselerar and engine power is cut at a pause