I've got trouble with my ford taurus. Sometimes, the dashboard oddometer and speed meter both don't work and the car doesn't shift gear properly. It stays in first gear too long and sometimes doesn't want to go in second even when the engine is spinig at 4000 rpm.
Sometimes, while driving, the problem just go away, the speed meter goes from 0 mph to the correct speed very quick and the gear shift properly.
Sometimes it drives fine, every thing works and it shifts properly. The first time it began to fail, the "service engin soon" switched on.
I took it to a mechanics. He pluged his diagnostic tool and he got the code : speed sensor A, PO500. That means there is a problem with the speed sensor which is on the transmission. He test the car and couldn't find anything wrong because the problem didn't come. He plugged the sensor off and checked it. He told me there is nothing wrong with it, it is useless to have it changed. He just made the "service engine soon" light to switch off thanks to his computer.
The result is that when I took the car back home, I drive aroud the area to see il the problem was fixed. I stopped 3 times and each time I turned the engine and lights off. The third time I turned the engine on, to go, the problem came again and the "service engine soon" light swiched on again.
What can I do?
Thank you if you've got an idea.
PS : prior to that I had trouble with the cruise control, but now it works fine (I don't know why). The dash board lights used to be like dead, but now they work fine.
have the same problem?
Wednesday, November 19th, 2008 AT 11:14 PM