How do you get a crank position sensor out?

**Matt Gertsch** · 03-30-2005, 04:25 PM

How do you get the crank position sensor out of a 4.0 XJ with auto trans? It looks like the easiest route is from the bottom, but I've tried every wrench and socket combination that I can come up with and I just don't have the room to move.

All help is greatly appreciated.

**coppertop71** · 03-30-2005, 05:51 PM

I got mine out wile the intake was off but I would guess that using a 2-3 ft 3/8 entension and maybe a swivel socket you should be able to access it from the back of the transmission. Other wise use a floor jack under the transfer and lower the transfer to get a little tilt while using the same 3/8 socket set up. The should get the bolts out and then you might have to reach from the top to pull the sensor out. Use some masking tape across the top of the socket then push the bolt into the socket to hold the bolt in place when you want to reassemble.

**Matt Gertsch** · 03-31-2005, 11:25 AM

As much as I hate to do it, I'm having the beast towed to the dealership. A lot of my sensors' grounds are testing at 11 ohms rather than the specified 5 ohms. The wiring tests okay, no shorts, good continuity. I hope they can figure it out for me. I'm getting tired of having a rig that runs like crap. I haven't been in the mud at all this winter and I don't plan on going all summer without seeing rocks.

mikejwil · 03-31-2005, 11:28 AM

Quote:

Originally Posted by mgertsch

How do you get the crank position sensor out of a 4.0 XJ with auto trans? It looks like the easiest route is from the bottom, but I've tried every wrench and socket combination that I can come up with and I just don't have the room to move.

All help is greatly appreciated.

The secret is a "wobbler"...aka "universal joint adapter" for your socket wrench. I used that, plus a 4" extension to get mine out/in.

**Matt Gertsch** · 03-31-2005, 11:57 AM

Yeah, I just don't have the room to move the ratchet. I'm even using a 1/4" socket set. Its gonna' be the dealers headache now. I just hope they know how to deal with all of the bolt on goodies, MSD crap, etc. It looks like an air ratchet would be very useful in there though.

anony91xj · 03-31-2005, 02:31 PM

I use a long 1/4" drive extension with a 10mm (I think) swivel socket on the end. I go at it from the bottom.

882drxjwheeler · 03-31-2005, 11:19 PM

i just did it today and i used about 12 inches of extension and a swivel and it came out easy from the bottom

03-31-2005, 02:31 PM	#6
anony91xj Registered User Join Date: Dec 2004 Location: North Jersey Posts: 2,742 Profile Gallery Classifieds My Jeeps	I use a long 1/4" drive extension with a 10mm (I think) swivel socket on the end. I go at it from the bottom. __________________ 1997 VW Jetta - Daily Beater <---Totaled, seeking replacement DD 2004 GMC Envoy - Wife's Ride

03-31-2005, 11:19 PM	#7
882drxjwheeler Registered User Join Date: Mar 2005 Location: RI/CT Posts: 7 Profile Gallery Classifieds My Jeeps	i just did it today and i used about 12 inches of extension and a swivel and it came out easy from the bottom