Where is the crankshaft position sensor located?

2006 BUICK LUCERNE
176,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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LAMBERSONDON
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Where are the crankshaft position sensors located on the vehicle listed above CXS?
Apr 18, 2025 at 1:33 PM
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STRAILER
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Wow, you are not going to like this, it is under the intake manifold. Sometimes GM misses the mark when it comes to ease of service. :/
Apr 19, 2025 at 10:57 AM
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LAMBERSONDON
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Is that with the 4.6l v8 NorthStar?
Apr 19, 2025 at 11:24 AM
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STRAILER
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Yep, it sure is. here is an image so you can see. Check out the images (below). Let us know if you need anything else.


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Apr 20, 2025 at 11:07 AM
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JASONBELL
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Ken L, can you tell me where i can find that picture?
Sep 14, 2025 at 4:09 PM
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STRAILER
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It is in the post above you, I got the image from Alldata which we have permission to do.
Sep 14, 2025 at 5:55 PM
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JASONBELL
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Ok, & the website is what I was lookin for so I could get the 1-whatever steps. Is that a licensed mechanic only site?
Sep 14, 2025 at 6:03 PM
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STRAILER
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No, you can get a DYI subscription for it. You need to remove the intake manifold.

1. Remove the intake manifold.
2. Disconnect the crankshaft position (CKP) sensor wiring harness electrical connector (1) from the CKP sensor.

Please let us know what happens.
Sep 14, 2025 at 6:12 PM
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JASONBELL
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Ok, cool. Thanks and will do. I've already had to take the intake manifold off about a month ago to replace the starter, which turned out not even being the problem.
Sep 14, 2025 at 6:41 PM
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STRAILER
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Sorry about that, bad timing, it might be the connector is not fully seated. Let me know when you remove the intake.
Sep 14, 2025 at 6:43 PM
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JASONBELL
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Ok.
Sep 14, 2025 at 6:50 PM
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STRAILER
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Thank you!
Sep 15, 2025 at 7:57 AM
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