i have 2000 4.4... i have this problem with faulty sensor over 3 months.. i took it to dealer 3 times. and he changed the left sensor, located under the back seat... 3 times.. every time and after 1 week or so the problem is back.. the sensor.. which is a plastic with level used to be found broken from the middle... i paid twice for the sensor and third time on warranty.. but still its broken.. i am still reluctant to go to the same dealer.. but i also cant go to another one.. since i will pay full price.. i really dont know wht to do.. the installation is so easy so i dont think the mechanic is doing something wrong in assembly.. ... guys.. any idea..