Hard starting, cranks but no start

L0919

MEMBER
2006 NISSAN TITAN
5.8L
V8
4WD
AUTOMATIC
163,000 MILES

Hard starting, cranks but no start at first then I replaced the cam sensor everything seem to be running fine. On the way to work twice it stall had problems starting it, cranked but no start finally both times it started and got into work and the check engine light hasn't come on. My reading I kept coming back to the cam sensor that's why I replaced it. The first time before it stalled I got a hesitation and the 4wd light flashed and not to long after that it stalled out.

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,755 POSTS

Hi,

The idea that it is stalling and has a delayed start, leads me to believe the crankshaft position sensor may be going bad. They are known to both fail when they get hot and it's possible for them not to set a code.

Take a look through this link and let me know if it seems to mirror what you experience:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Here is what to do. When it stalls and then doesn't want to restart, see if there is spark to the plugs. Or, if you have a live data scan tool, see if there is an RPM signal. If there is no signal, suspect the aforementioned sensor.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Here is a link that shows in general how one is replaced:

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

On your truck, the crankshaft position sensor (POS) is located on the A/T assembly facing the gear teeth (cogs) of the signal plate. It detects the fluctuation of the engine revolution.

I attached a pic of what it looks like and one showing the location. Let me know what you find or if you have other questions.

Take care,
Joe

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