Where is the crankshaft position sensor located?

Tiny
NONSTOP
  • MEMBER
  • 1999 TOYOTA 4RUNNER
  • 3.4L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
I would like if possible, some sort of engine diagram pointing out where the crank shaft positioning sensor is located on my vehicle listed above Limited model.
Sunday, May 12th, 2024 AT 4:42 AM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Sure, the crankshaft position sensor is located on the front part of the engine on the driver's side, here is what it does:

Crankshaft position sensor (NE signal) consists of a signal plate and pickup coil.

The NE signal plate has 34 teeth and is mounted on the crankshaft. The NE signal sensor generates 34 signals for every engine revolution.

The ECM detects the standard crankshaft angle based on the G signals, and the actual crankshaft angle and the engine speed by the NE signals.

Here is how to test the sensor as well, but keep in mind this test does not always determine if the sensor is good or not. Check out the images (below). Please let us know what happens.
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Sunday, May 12th, 2024 AT 1:22 PM
Tiny
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Thank you very much. So, I swapped out the crankshaft positioning sensor, but my car is still just cranking but not starting. It turns over just fine, but it will not start. I thought it might be the crankshaft sensor because I wasn’t getting any movement on my RPM gauge but now that I swapped it, I’m still not getting movement on the RPM gauge, would you know if the camshaft sensor would keep my car from starting? It’s strange. I was just driving home and came to a stop at a red light. It shut off and it hasn’t started since I pulled the fuel line off past the fuel filter and it seems to work fine when I crank the car over it has very strong pressure, I pulled out one of the plugs and grounded it and it seems to have spark. I just don’t understand what else it could be any possible way you can help me figure it out.
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Sunday, May 12th, 2024 AT 2:34 PM
Tiny
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Thank you very much so I swapped out the crankshaft positioning sensor, but my car is still just cranking but not starting. It turns over just fine but it will not start. I thought it might be the crankshaft sensor because I wasn’t getting any movement on my RPM gauge but now that I swapped it I’m still not getting movement on the RPM gauge, would you know if the camshaft sensor would keep my car from starting? It’s strange. I was just driving home came to a stop at a red light. It shut off and it hasn’t started since I pulled the fuel line off past the fuel filter and it seems to work fine when I crank the car over it has very strong pressure, I pulled out one of the plugs and grounded it and it seems to have spark. I just don’t understand what else it could be any possible way you can help me figure it out.
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Sunday, May 12th, 2024 AT 2:35 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Yep, I can help you, but can you please start a new thread? This one is for the crankshaft sensor location, also in the new question upload a short video of the engine cranking over so we can see if the engine is hurt or not.
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Sunday, May 12th, 2024 AT 4:07 PM

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