How To Replace A Crank Position Sensor

[RooTBeeR]

Tools Needed
Rachet Wrench
15mm Socket
Universal Joint
3" extension
10mm socket
Tiny Hands with Long Fingers!


First thing first, get your sensor.
Next, Disconnect the battery.


Then remove the two 15mm bolts in the starter.
(Red)Front bolt is easy to see and remove.
([Blue)Rear bolt is impossible to see and hard to get to.
Get your ratchet + 3" extension + universal joint + 15mm socket(in that order) snake it in behind the starter and the block use one hand(if you can) to get the socket on the bolt by reaching over the top of the starter.
With the bolts removed, pop the starter out of the block(leave all the wires on the starter, if you take them off it will just take you longer to do the job) and move it towards the passenger side of the car as possible.

(Red)Then remove the 10mm bolt holding the sensor in.
(Blue)Unplug the sensor from the harness.


Then just pull the sensor out of the block.

Next unplug the harness from the sensor.
Old sensor on the left(has oil on it), new on the right.

Then do those steps backwards with the new sensor.
Finally do a CASE Learn and your set.

Thanks to Maven for his directions/pointers he gave me.

[Maven]

A stubby ratcheting box wrench will make quick work of the top starter bolt as well.

[rallyracer]

looking at the engine with the hood popped...where abouts is the starter / Crank Position Sensor?

[Maven]

down under the intake manifold to the immediate passenger side of the oil filter housin

[B.rad]

A stubby ratcheting box wrench will make quick work of the top starter bolt as well.

I cannot stress this enough. It was soo much easier with one of these.

[Jn2]

i can change mine w.out taking the starter off, hell with out taking anything off except the CPS pigtail...than i just take the 10mm off and pull the sensor out...

[Maven]

i can change mine w.out taking the starter off, hell with out taking anything off except the CPS pigtail...than i just take the 10mm off and pull the sensor out...

youve got an L61, and probably without ABS.....makes a huge difference in access. This is the "recommended" way though

[Jn2]

I have abs, the module sits right under my intake, I got abs, cruise, side curtain air bags as options

[RooTBeeR]

yeah, i had to look in the gm build book just to find the dang top starter bolt haha and all i had was a long ratcheting+pivoting 15mm(my dads) so i couldn't cut it to fit haha

[Jn2]

the top starter bolt is a bitch to find...there is another bolt close to it that i thought was the top bolt hahahaha, was trying to pull the starter and was like WTF...whats holding it on