some of these bad boys have a magnet in the timing cam gear must remove timing cover on these models
Its the gear that connects the speed sensor shaft to the transmission
no it;s behind the timing belt near the front timing gear o on the crank shaft
There are two parts to the speed sensor, one is located at the bottom of the timing chain cover, this is the sensor that has the electrical harness plug into it and is on the outside of the timing chain cover. The other part is more complicated and this is the sensor located inside the timing chain cover and is like a magnet and its plugged in a hole on the lower timing chain gear. I replaced the magnet sensor on a 1988 buick riviera, the one that is located inside the timing belt cover, it is a pain to get to it, once you remove the timing belt cover you have to remove the timing chain and the timing chain sprockets,, the sensor is located behing the timing chain lower gear so you have to remove the gear and the sensor plugs into a hole on the gear itself. The way it works is like this,,,the magnet that is located on the lower gear inside the timing chain cover turns and when it turns it passes trough the sensor located on the outside of the timing gear when they meet it creates a electrical pulse read by the computer and it tells it the speed of the engine.
Its in there all right Runs from the crank shaft and operates camshaft and balance shaft
There are two timing marks on a 350 chev one for the cam shaft gear and one for the crank gear. The timing mark on the crank or the on on the bottom of the motor should be facing straight up and the cam shaft gear should be facing straight down this will put you lined up and top dead center.
yh
Before you replace timing gear or belt check codes with code reader, may be a crankshaft position sensor. Sensor is very easy repair and L300 isn't going anywhere if that sensor is malfunctioning.
The cam sensor is located behind the camshaft gear. The timing belt and cam gear should be removed to properly gain access to this sensor, but it can be done if you zip-tie the belt to the pulley, and carefully remove the pulley, suspending it with a bungie cord from the hood, so that the belt does not jump timing on the crank gear. There are two bolts holding the bracket that the cam sensor is mounted to. Remove the bolts, and the sensor can now be removed, and replaced. Be sure the keyway in the camshaft remains inplace while re-installing the cam gear, and lock tite the cam gear nut. We have done these in under an hour. Book time is 3.5 hours. Good luck!
the cam sensor is located in the timing cover usually the magnet the cam sensor senses comes out of the timing gear the fix is replace the timing chain and gear take the sensor out and look through the hole with a mirror while turning the engine over slowly by hand and see if the magnet is gone
The crankshaft position sensor is located behind the timing cover and above the crankshaft gear. the timing belt my have to be removed to access the bolts on the sensor.
the sensor is behind the timing belt cam gear.
The small hole in the larger gear is the timing mark. The smaller gear should have a dot marking the tooth two left of the shaft key.align this dot to dot the hole pointing to the dot