How do I change the cylender head temperture sensor on a 2006 ford expedition 5.4L engine

SOURCE: location of CHT sensor

It is located at the back of the passenger side cylinder head close to where the intake manifold and head meet.It will have a YE/LG and GY/RD wires to it.

SOURCE: I changed EGR valves, selinoid, sensors, and even

go to auto zone or someone with a scan tool to find out what codes are stored on the computer in the car

SOURCE: reset ems (check engine light) on ford expedition

Try to remove positive baterry terminal for 20 minutes and install it nack. That will reset your ECU and it will run little rought tilll learn new change in 02 sensor.

SOURCE: how to change a camshaft position sensor on 2006 ford expedition

give these websites a try www.alldatadiy.com and www.autozone.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car wish you the best of luck Michigan Man.

SOURCE: 2006 Ford Expedition fail safe

ETC Failsafe?

Electronic Throttle Control

Clean the throttle plate with
CRC Throttle Body Cleaner

Still have problem--meter out
TPS Sensor on throttle body

It is replacable. You can do that yourself
Get from auto parts
About $80.00 -- 2 T-20 Torx Screws,
no adjustment