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My impala stalled out and won't restart. Code P0335 crank position sensor. My question is where is the crank position sensor? I can't seem to find it. Has anyone ever changed one of these sensors?
 

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My impala stalled out and won't restart. Code P0335 crank position sensor. My question is where is the crank position sensor? I can't seem to find it. Has anyone ever changed one of these sensors?
Being how old this post is, I'm HOPING you've already figured it out!

But just in case someone else finds the post....
It's on the firewall side of the block, very close to the bell housing, roughly pointing at the crank (go figure?!). Has an angled connector, with 3 wires.
 

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[QUOTE="RobertoMugabe, post: 3714012, member: 184076" Looks like I have to remove quite a few doodads to get it, is that right?
[/QUOTE]

The cam sensor isn't so bad - depending on your hand/arm size.
The crank sensor on the other hand... seems that many people pull the rear exhaust manifold. Or the transmission. :D
(I literally had my trans out to swap it for a totally built one - regretting not doing it then!)
 

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Followup to the cam sensor - the whole job can be done in about 10 minutes with two tools.
If you follow a certain person on Youtube, you can also spend 1/2hr or more doing it. ;)

  • Take off the 2 nuts (11mm) holding the fuse holder down. Carefully lift it up, and rest it on the belt.
  • Stand at the front, reach down (use left hand) with a deep 10mm socket and take off the hold down bolt.
  • Gently twist the sensor a few degrees back/forth while extracting.
  • After it's out, undo the connector. <--- WAY easier than trying to undo it first!!
  • Apply some silicone grease to the o-ring of the new one, and insert. Make sure it's fully seated!
  • Reinstall the hold down bolt (about 10-15ft-lbs).
  • Reattach the connector.
  • Reposition the fuse block (make sure to get the tab into the holder of the inner fender).
  • Reinstall the 2 nuts (tiny post - don't over tighten or they will break!)
Done.
 

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Followup to the cam sensor - the whole job can be done in about 10 minutes with two tools.
If you follow a certain person on Youtube, you can also spend 1/2hr or more doing it. ;)

  • Take off the 2 nuts (11mm) holding the fuse holder down. Carefully lift it up, and rest it on the belt.
  • Stand at the front, reach down (use left hand) with a deep 10mm socket and take off the hold down bolt.
  • Gently twist the sensor a few degrees back/forth while extracting.
  • After it's out, undo the connector. <--- WAY easier than trying to undo it first!!
  • Apply some silicone grease to the o-ring of the new one, and insert. Make sure it's fully seated!
  • Reinstall the hold down bolt (about 10-15ft-lbs).
  • Reattach the connector.
  • Reposition the fuse block (make sure to get the tab into the holder of the inner fender).
  • Reinstall the 2 nuts (tiny post - don't over tighten or they will break!)
Done.
Awesome write-up, thank you!
 
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