What would cause the aux fan to come on late on a 96 jeep Cherokee 6-cylinder - temp gets to 230 before the fan kicks on?
Well the 96 has 2 sensors, one for the gauge and one for the
computer. One of them is obviously wrong, so simply replace them
both. The computer 'sensor' is located on the water outlet at the
front of the engine. The gauge 'sender' is located at the rear of
the head on the drivers side. These systems are also know for
needing to be 'burped' which is another topic all together. Good