Sentra not starting


#1

I have a 2000 Nissan sentra and I have times when I will drive for couple days and then it won’t start it will just crank over and over but won’t fire I have had it to several people but no answer replaced the fuel pump relay switch but nothing I need help


#2

Has anyone checked for engine trouble codes?


#3

Yes but nothing


#4

It needs to be diagnosed in failure mode. If you can figure out how to replicate the problem on a consistent basis to have it analyzed in failure mode would be the best. Is the maintenance for fuel filter up to date? does it happen on damp or rainy days?


#5

Just random times fuel pump and relay switch have been replaced


#6

The problem might be with the crankshaft position sensor.

http://www.rockauto.com/catalog/moreinfo.php?pk=2413230&cc=1429501

As you can see the thing is made of plastic.

If the computer doesn’t see a signal from this sensor, the computer see’s no reason to operate the ignition and the fuel injection system. So the engine doesn’t start

Tester