Crankshaft Position Sensor Replacement [*]

No problem, glad I could help out. Print a copy of that thing out if you got a printer that will do the pictures well enough and save it, share it, spread it around or point people here that need it if you come across anyone.

So my husband and I had to replace this sensor this weekend and I am soo thankful that I had found this thread..... finding the bolts to go into the harmonic balancer was a chore...we got the 4inch ones and they were actually too long.....so we would say maybe a 3 1/2 inch ones if you can find them...but I am soo glad that I had found this or our car would still be sitting in the garage thank you very much!!!!!!

You're more than welcome.

SyntheticShield, I had a question.
I'm a little confused on the step where you said to, "Clamp a pair of good heavy duty vice grips on the flywheel towards the front side of the engine."

I was going to attempt this later today and want to know exactly how and why to do this? thanks in advance.

Originally Posted by Panto911

SyntheticShield, I had a question.
I'm a little confused on the step where you said to, "Clamp a pair of good heavy duty vice grips on the flywheel towards the front side of the engine."

I was going to attempt this later today and want to know exactly how and why to do this? thanks in advance.

You do this to prevent the crank from spinning when you're trying to remove the harmonic balancer bolt.



If you look at this picture you can see exactly where to put it under the car.

Fantastic write up and diagnostic details. I have been chasing this "ghost" for about three years. I must have a short in the wire or a tempermental sensor. Sometimes it does it orten and then will disappear for a while. Any one in the Houston area in for a mod day?

about one year ago my dad was having issues with is '00 GP, I gave him this site and write-up. he used that page and successfully changed the CPS. then I mailed synthetic the bad CPS Car still runs flawlessly

Just did this today - I had to run out to the hardware store and knew exactly what I needed. Thanks for the writeup!

Worked great for me, still had to use 3 sets of pullers to piece mill the exact parts that I needed for this but I didn't have a problem at all working on the wife's 2000 GT.

This procedure made my day. I never thought I would get that bolt to break free, especially after snapping a 1/2 in. drive extention. After reading this write up it all became perfectly clear. Thanks for taking the time to explain step by step.

Just did this today. Handy having the page saved as a favorite on my Droid for a reference!

Well just did this got a Duralast sensor from AZ. could not get my bolt loose with a 36" breaker bar it had a pound of red thread locker on it; so i did the "disable the ICM, wedge the breaker bar on the support and give it crank", it broke free instantly. I used a lisle 3300-3800 puller it came with the bolts that fit perfect as well as the metal rod to protect the crank threads. big thanks for this how-to and TorqueAutoMotiv for helping me out.

Thanks for the how-to. Made this so much easier.

Scotty, Thank you SO much for the write up - My brother-in-law (who is an awesome mechanic and all-around awesome guy) replaced my CPS for me and now my 01 GTP is running like a top again. Of course we had to replace 2 window regulators (total of all four replaced now) and the Multi-function switch in the steering column too. I hope I'm done with repairs for a while. I really can't complain too much this is the first real money I've had to put into it. Much better than a new car payment. Thanks!

Iam new to the forum but this thread talks about replacing a cps,but there is nothing here is the link just no longer active .i need to find and change the cps but i cannot find it ,the is a 2002 grandpriz 3.1liter

Jack and support passenger side front of car.
Remove tire
Remove plastic splash shield in front of harmonic balancer
Untension belts
Remove crank bolt (24mm)
Using a balancer puller and m6 x 1.00 pitch bolts about 60-75mm in length pull the balancer


Disconnect crank sensor electrical


Remove plastic crank sensor shield



Remove crank sensor (2 x 13mm bolts and wiggle it)



Reverse for installation.

Tip, when reinstalling the plastic crank sensor shield. Ensure each of the three nubs have clicked on the bolt ends.

Thank you. If this dont work do you have pics and how to replace a camshaft position sensor and where it is located on a 2002 3.1 L grandprix

where is the camshaft position sensor. the car stall for no reason . i check for spark and there is no spark .i changed the icm and the crankshaft position sensor.any help would be greatly appricated

Will the balancers screw right in? it looks like there are no threads on mine?? anyone have any ideas

The balancer has a keyway on it, see pic above. If you set the balancer on the crank and turn it while pushing toward the motor, it will engage the key way and you won't be able to turn it by hand anymore. From there put the crank bolt back in and torque.