I have a 2000 Sierra 1500 PU that broke down on me. Check engine light came on and I have code P0335 Crankshaft Position Sensor Signal error Fault. Any idea what I should look for? Can anyone help me? Any info is really appreciated!
2000 Sierra need help plz!!
- Thread starter SJM0713
- Start date
Molson02536
New member
Replace your crankshaft (CKP) sensor.
4.8 / 5.3 / 6.0 vortec
The crankshaft sensor is a 24X (58X on 2004 and later engines) pulse sensor that controls ignition coil firing and injector pulse. The 24 tooth reluctor wheel is mounted on the back of the crankshaft. This location is known as the "quiet" deflection zone that minimizes any false signals to the pcm that can be misinterpreted as a fault. As with the CMP, the crankshaft sensor is a magnetic sensor that has the field interrupted by the passing the the teeth on the reluctor. This signal is conditioned by the sensor circuitry so I can be properly used by the pcm.
The pcm constantly times the pulse intervals it receives, in conjunction with the CMP to resync the point of the #1 firing stroke. Any changes to the timed intervals at each firing order stroke is read by the pcm as a change in crankshaft velocity. Using the other sensors such a MAP, and TPS, the pcm can determine the changes in crankshaft speed when the engine is accelerating or decelerating, within normal operating conditions, and when the changes are outside the normal parameters, the pcm detects this as a misfire, and the appropriate DTC is set. A loss of this signal will result in a no-start or no run condition.
The location of the CKP is on the right hand side above the starter.
http://chevythunder.com/LS1_crank_sensor_loc..jpg
http://chevythunder.com/LS1_crank_sensor.jpg
On the 4.3 vortec, it's located on the front bank2 of the engine by the crank shaft.
http://www.2carpros.com/forum/automotive_pictures/266999_GraphicCAS371KE_1.jpg
Good luck and keep us posted.
Last edited: