This P0320 code means the crank sensor circuit is malfunctioning. However, on most Chrysler product such as these Jeep models, this crank sensor fault code is actually a misnomer because the problem points to a camshaft sensor problem. Symptoms of this code are no start, stalling and the check engine light coming on. Another feature of this P0320 code problem is the ignition coil starts to overheat which will later cracked. Even if you replaced the ignition coil, they will overheat again after a few hours of operation. It is also noted that the ASD relay will start clicking as soon as this code is displayed in your dash.

When testing, start by checking the crank sensor wirings integrity like short and open connections between the sensor and engine computer. Then do the same on the camshaft sensor which is the normal culprit of this problem. To be sure, you can have a garage monitor the camshaft sensor wirings using labscope method ( a detailed way of graphing the wiring voltage in milliseconds) but the price you will pay for this service might be cheaper if you put a new camshaft sensor yourself.

Tip:

To locate the crank and cam sensor, it is a good idea to get a wiring diagram and installation procedure because this might a need special tool to do the job.

So remember not to rush in replacing the crank sensor yet when you see this P0320 code if you work on Chrysler vehicles like Jeep. This can save a lot of aggravation since you will avoid replacing unnecessary parts. Finally, make sure to reset the code after you replaced the cam sensor.

Thanks!

This entry was posted on Tuesday, March 25th, 2008 at 5:45 pm and is filed under Check Engine Light FIXES. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.