2001 Disco won't start
 

The other day, I was out driving and stopped for lunch. Came back out a hour later and car wouldn't start. It would crank, but not start. I tried for a few minutes, but nothing. Left the car there and came back later that day, it fired up first try. Stopped by auto zone to get battery tested, and it ok, not great. Drove around for a few days with no problems. Then I was out running another errand and this time, i was stopped at a light and the car just died. Tried to start, but same thing. It would crank, but not start. Got the car pulled off into a parking lot, went and bought a new battery and replaced. Same thing. Came back the next day, and car fired up first try. Drove it home without any issues. I then replaced the negative cable and terminal, and cleaned the positive. Later that day, tried to start, and same thing.

Any ideas as to what might be going on? I read on other threads where people were mentioning the crankshaft position sensor.

Having the same thing. It seems like the crankshaft position sensor. Be prepare to have some fun replacing it. It is really hard to reach.

That's what I keep reading:)

There is a test to see if it is in fact the CPS (Crankshaft Position Sensor), tha tinvolved pouring cold water on the sensor. You can search for it. I decided to just replace mine becuase it would go out sooner or later anyways. I ordered mine from a local autoshop (NAPA I believe) and it was around $62. Try a few spots, because several had it for over $200!!!

There is a lot of info about other owners doing it on the forum and a great write up in the HOW TO section. Good luck!