Reverse Parking Sensor

[fickle]

2006 Ford Explorer LTD

Trying to get to a bad sensor in the back bumper. I get the "Check Parking Aid" on the console and one of the sensors isn't making a clicking sound. The question is - how to replace that sensor. In the videos I've seen most Expeditions or F150's have vacant access behind the bumper. With mine there is a foam block and a hitch in the way (#3 & #9 ) as seen here http://www.silverstatefordparts.com/2006-Ford-Explorer-Limited-Bumper-Components-Par-s/185614.htm in the diagram. The strip (#2) in the diagram is where the backup sensors reside and I'm not sure if it pops out or is screwed in from behind. I gave it a pull yesterday, but it seems pretty snug and I didn't want to break anything.

Anyone have any ideas or suggestions on easily replacing these backup sensors?

Thanks!

 

[fickle]

UPDATE - I was able to fix the sensor by removing the back bumper entirely. You "might" be able to just remove the 3 metal washer nuts holding the foam piece in the bumper, but taking the entire bumper off really isn't that difficult and made getting the sensor out easier. I followed the instructions here - http://www.ford-trucks.com/forums/1127670-02-05-factory-tow-hitch-info.html to remove the bumper. The sensor had a couple of clips holding it on and didn't twist out as many YouTube videos suggested.

Thanks.