ChiCampbell

Hi, need some advice - first quick background:
2005 Cayenne 3.2 v6, 127k. Was driving along and then a hard stumble and it was running with no acceleration and would not go over 4000 rpm. No codes! when stopped it would not start but after sitting 20 min it would and run okay for 5 min then the same thing. Did the fuel pump troubleshooting and determined the pass side pump was not working. Replaced both pumps, pressure regulator and fuel filter. Ran okay for 20 min and then did the same thing! this time got a p0336 code: crankshaft sensor. I have a new one and was able to get the old one unbolted (in the oil cooler bracket, what a pain) but for the life of me can not see how to disconnect the wire connection: I can't get my hand on it, can anyone share how to disconnect it and how to fish the new one to the connector? thanks!!

Shawn Stanford

Check your coils, too. This sounds like a problem I was having with my '05 base, which turned out to be a bad coil. I don't remember it throwing a CEL.

ChiCampbell

I made room to get my hand close by removing the air cleaner cover and moving the hoses.. don't know how to get the connector out of the retaining clip, anyone have an idea how to do that? I succeeded in breaking the plastic piece off the top of the connection so I am going to get a long hook to pull up the tab over the notch. Once I get the top of the connection off I am stuck on how the get the bottom out of the retaining clip. thanks

ChiCampbell

Now that I completed the replacement, here is the process for the 3.2L V6:

1) remove the front underneath splash guard; Phillips screw driver and M10 socket
2) remove the drivers side fender engine bay cover
3) remove the front drivers side engine bay cover
4) remove the air filter cover and front piping (drivers side)
5) on the drivers side top of engine the radiator hose and another hose are fastened mid engine, remove from fasteners
6) go underneath, the crankshaft sensor is located on the driver side, to the right of the oil filter/cooler in the oil filter bracket - there is a wire coming from the sensor to the front of the engine
7) using a 27 torx remove the single sensor screw and pry the sensor from the engine
8) still underneath on the front end of the oil filter housing there is a bracket holding the sensor connection. Using a long screw drive push the connection out of the bracket. There is a narrow space behind a pump to reach it.
9) from the top pull up the connection and separate
10) from underneath remove the sensor by pulling towards the magnetic end
11) from underneath fish the new sensor connection behind the oil cooler towards the front.
12) from the top grab the new connection and plug it in.. up to you if you want to put it back in the bracket, I did not
13) from underneath put Vaseline on the magnetic piece and insert into engine.. must do by feel as it is really hard to see it in the bracket, be sure the wire comes from the back of the magnetic end towards the front
14) reinstall the 27 torx screw
15) replace air filter cover, hose fasteners and engine covers

All done!! good luck

dorumac

Shawn Stanford

deilenberger

Great writeup - thanks! It has been memorialized as a DIY in our Cayenne DIY forum: https://rennlist.com/forums/cayenne-...placement.html

Commando Rob

Hi all followed wright up and now my Cayenne 3.2 wont start just cranks, any ideas?

have traced all work and everything has gone back as should only thing, I didn't torque sensor srew as couldn’t find a torque setting, just hand tight and didn’t put Vaseline on magnetic part.

have put old sensor back in and still no start.

please help.

Commando Rob

just to close this question I asked, and maybe help others, as the saying goes buy cheap buy twice!
So I went to my local OPC and bought an oe crank position sensor, at 4 times! the price of the cheap after market one id bought originally, and my Cayenne started up straight away!

thadm

Thank you for the procedure. Just did this and it's a real project. One thing that I was stuck on was getting the bolt out. Mine is 5mm Allen head. After figuring that out the procedure really helped.