Where is the knock sensor located on a 2006 Ford Focus? Engine is 2.0L Duratec.

C109 here

https://www.focusfanatics.com/threads/knock-sensor-location.727586/

More here

https://www.google.com/search?q=Ford+focus+1.6+2006+fuel+knock+sensor+location

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I have an '02 model of the same and they are located on either "side" of the block. There are two, one for each side but am not sure if there are others but I believe there are only two. I hope this helps you, Jesus loves you, John 3:16-17 (KJV)

It doesn't have a coolant sensor it has a CHT, cylinder head temperature sensor. This type of sensor is much more precise measuring engine operating temperature.

Clear the code and drive the vehicle. If the code comes back, then you know it's real condition and not a one time event.
Changing the temperature sensor isn't going to remedy the situation. Most likely the thermostat will need to be replaced.

Most likely a worn out battery,if original to car

For exact location and image.Click the link below :---Where is the pcv valve located on 2007 Duratec ford focus xr5? http://repairhelpcenter.blogspot.in/2012/02/where-is-pcv-valve-located-on-2007.html--------This will help.Thanks.

Click the link below :----Where is the pcv valve located on 2007 Duratec ford focus xr5? http://repairhelpcenter.blogspot.in/2012/02/where-is-pcv-valve-located-on-2007.html

Actually, the newer ('05+) Duratec motors have a sealed airbox. There is a meter on the side of it (positioned just behind the driver side headlight.) To qualify as a Partial Zero Emission vehicle all emissions parts are required to last for 100k miles. 100k miles is when Ford recommends replacing it. Yes... you replace the ENTIRE airbox. Often times it's more cost effective to replace the unit with a traditional cold air induction kit (~$150) with a more traditional air filter.

remove the intake manifold ,remove radiator ,remove radiator intake and outake housing, remove fan ,remove all belts: power steering, alternator and if you have a/c, remove harmonic balancer ,remove timing belt covers, remove timing belt remove intake housinng once you have remove all the above, your freaken engine will look naked, you can see the location of the knock sensor is locate in the engine valley

try to clean the throttle body with cleanner. I had this problem with a gm before. Just make sure that there is not a sticker around the throttle body telling you not to clean. Some fords are like this. I fyou clean the ont that tell you not to clean it will start to make a noise