Crankshaft sensor does not fit ?

2007 JEEP LIBERTY
130,000 MILES • 3.6L • 6 CYL • 4WD • AUTOMATIC
Avatar
PJM333
  • MEMBER
  • 30 POSTS
I tried replacing the crankshaft sensor I got from AutoZone. The sensor would not fit, figured it was wrong part, so I ordered from a different store. Same thing happened, the old one goes right back in. I am on my fourth sensor, but they do not fit. I compared old and new and they look identical. Any ideas what is wrong? Thanks
Mar 7, 2025 at 5:58 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Can you upload an image of the old and new crankshaft sensors so I can see? To be clear this is the sensor you are replacing, correct? Check out the images (below).
Image (Click to enlarge)
Attached Media
Mar 7, 2025 at 11:16 AM
Advertisement
Avatar
PJM333
  • MEMBER
  • 30 POSTS
That is the correct sensor, and I will take a picture on my next attempt. Thanks!
Mar 7, 2025 at 1:39 PM
Avatar
STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
What doesn't fit? Check the old one for the O ring, is it on it? Is it the O ring that blocks it from fitting? They tend to fit very tight as the ring has to compress, I generally apply a bit of silicone grease to the O-ring then rock it a bit to get it started.
Should take a Mopar 56044180AC or an NTK0395.
Mar 7, 2025 at 3:17 PM
Avatar
PJM333
  • MEMBER
  • 30 POSTS
I am not sure why, first time changing this sensor. The old sensor has o ring and look identical to new sensor. Thank you for the grease suggestion, first time hearing this. Before I do any damage, I am asking, my first thought was to bang it in. Thanks again!
Mar 8, 2025 at 4:30 AM
Avatar
PJM333
  • MEMBER
  • 30 POSTS
Greasing the sensor worked, still took a while but I got it in. Better safe than sorry, ignorance on my part but I learned something new. Thanks for everyone's help.
Mar 8, 2025 at 8:12 AM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
STEVE W. is one of our best! Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.
Mar 8, 2025 at 10:21 AM
Avatar
PJM333
  • MEMBER
  • 30 POSTS
Thanks again Ken L and Steve W.
Mar 8, 2025 at 10:22 AM
Avatar
STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
You are welcome.
Mar 8, 2025 at 11:11 AM