Hello everyone..I am new to this forum and in need of some assistance. My parents own a 03 F-150 4.6L and have recently come into some problems with it. They were told that the problem is the CYLINDER HEAD TEMPERATURE SENSOR. I went to the autoparts store and bought the sensor..WT-5059. The problem is..I can't find it anywhere on the truck and I was told that this is the place to come for help with an F150..can someone please help me. Thank you in advance.

 

There is one for the computer and one for the gauge. The gauge one is under the intake manifold rear of the engine, the computer should be in the side of the block or could be somewhere near the thermostat.