I need to know where the crankshaft sensor is?

Tiny
TOWERMONKEY
  • MEMBER
  • 2007 CHEVROLET SILVERADO
  • 4.8L
  • V8
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
I am having the same issue that you had but I need to know where the crankshaft sensor is and how the wiring goes?
Do you
have the same problem?
Yes
No
Sunday, April 7th, 2019 AT 6:48 AM

36 Replies

Tiny
SCGRANTURISMO
  • EXPERT
Hello,

I have included the information that you requested in the diagrams down below. There is the location, connector end view, description of operation, and a diagnostic troubleshooting guide for your vehicle's Crankshaft Position Sensor (CKP). Please go through it and get back to us with what you find out also check out this video

https://youtu.be/sKo7xRWVNqY

Thanks,
Alex
2CarPros
Was this
answer
helpful?
Yes
No
Sunday, April 7th, 2019 AT 7:24 AM
Tiny
BEAVIS1234
  • MEMBER
  • 2006 CHEVROLET SILVERADO
  • 0.5L
  • V8
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
How to tell if crankshaft sensor is bad?
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:33 AM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
I attached the procedure for you for the sensor replacement. The starter must be removed to gain access.

After replacing, it must be programmed with a scan tool.

Roy

CRANKSHAFT POSITION (CKP) SENSOR REPLACEMENT

REMOVAL PROCEDURE

IMPORTANT: Perform the CKP System Variation Learn Procedure whenever the crankshaft position sensor is removed or replaced.

ImageOpen In New TabZoom/Print

1. Remove the starter.
2. Disconnect the crankshaft position (CKP) sensor electrical connector.

ImageOpen In New TabZoom/Print

3. Clean the area around the CKP sensor before removal in order to avoid debris from entering the engine.
4. Remove the CKP sensor bolt.
5. Remove the CKP sensor.
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:33 AM (Merged)
Tiny
STONEDOG 2006
  • MEMBER
  • 2002 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 67,000 MILES
Can you tell me were the crank postion sensor is located on the truck it is a 2002 chevy silverado with a 8.1 gas motor
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
DENNYP
  • EXPERT
It is located at the rear of the engine near the transmission bellhousing.


https://www.2carpros.com/forum/automotive_pictures/102900_300360_1.jpg



https://www.2carpros.com/forum/automotive_pictures/102900_470801_1.gif



https://www.2carpros.com/forum/automotive_pictures/102900_674728_1.jpg



https://www.2carpros.com/forum/automotive_pictures/102900_814961_1.jpg



https://www.2carpros.com/forum/automotive_pictures/102900_814962_1.jpg

Was this
answer
helpful?
Yes
No
+2
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
DENNYP
  • EXPERT
Crankshaft Position Sensor Replacement
Removal Procedure
Notice: In order to prevent damage to the crankshaft position (CKP) sensor reluctor wheel/ring, care must be used when removing or installing this component.

Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Remove the fuel line bracket nut (5).
Remove the fuel line bracket from the bellhousing stud.
Lower the vehicle.

Remove the driver side rear ignition coil bolts.
Reposition the coil.
Disconnect the crankshaft position (CKP) sensor electrical connector.
Use penetrating oil and allow the oil to soak around the CKP sensor prior to removing the sensor.

Remove the CKP sensor bolt.
Prior to removal of the CKP sensor, twist the sensor back and forth.
Remove the CKP sensor.

Inspect the CKP sensor for wear.
Important: The CKP sensor is designed to contact the reluctor wheel of the crankshaft. Wear may be noticeable on the end of the sensor.

Normal CKP sensor wear will be shown on the wear strips (1), and no wear will be shown on the sensor sensing element (2).

Excessive or abnormal sensor wear will be shown on the sensing element (2).
If excessive/abnormal wear is present, replace the sensor.
Installation Procedure

If reusing the old sensor, Inspect the O-rings for cuts, cracks, tears or damage, replace as needed.
Lubricate the CKP sensor O-rings with clean engine oil.
Important: Ensure that the CKP sensor is fully seated against the crankshaft reluctor ring. The upper flange on the sensor MAY NOT seat against the engine block.

Install the CKP sensor.
Important: The CKP sensor bolt has adhesive applied to the threads. The adhesive may have come off during removal of the bolt. Ensure that the bolt hole is clean of any debris before installing the reinstalling bolt.

If reusing the old sensor, apply thread adhesive GM P/N United States 12345493, GM P/N Canada 10953488, or equivalent to the bolt threads.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Install the CKP sensor bolt.
Tighten

Tighten the bolt to 12 N m (106 lb in).

Connect the CKP sensor electrical connector.
Position the coil to the rocker cover.
Install the driver side rear ignition coil bolts.
Tighten

Tighten the bolts to 12 N m (106 lb in).

Raise the vehicle.
Install the fuel line bracket to the bellhousing stud.
Install the fuel line bracket nut (5).
Lower the vehicle.
Perform the CKP system variation learn procedure. Refer to CKP System Variation Learn Procedure.
Was this
answer
helpful?
Yes
No
+2
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
CARLOS RDZ
  • MEMBER
  • 2002 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
I was having problems with my fuel pump. It would have trouble turning on & when it did, barely. It would only stay on for a few seconds with very low rpm's. Changed my fuel filter & was still having trouble. Eventually it was working fine on it's own like nothing happened. Mechanic said my fuel pump was bad. Also, he said my crank position sensor was bad. He said that's why it had very low rpm's. If thus is correct, where is it located & how do you change it?

Thanks,
chevy enthusiast
Carlos Rdz.
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
KEN L
  • ADMIN
Here is a video that shows the crankshaft position sensor being changed

https://youtu.be/sKo7xRWVNqY

Please run down this guide and report back.
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
MICHAELEUBANKS58
  • MEMBER
  • 2001 CHEVROLET SILVERADO
  • 8.1L
  • V8
  • 4WD
  • AUTOMATIC
  • 81,000 MILES
My chevy 2001 silverado 2500hd 8.1l big block vortec, trying to change crankshaft position sensor, its in a bad location, but I have it located and can NOT pull it out, I can spin it 360degrees but will not pull out, I have lubed it with pb blaster, wd40, oil, but nothing, HELP?
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
KASEKENNY
  • EXPERT
I am attaching the process for the manual for your review so that you can review that if needed.

However when these sensors are stuck it is because the seal has fused to the engine. Meaning it got hot enough to melt it slightly and it has cured to the engine. So you just need to use a set of vice grips and lock onto it and pull up. You can also put a screw driver flat on the engine next to it and use it as a leverage point to pry it out. Once you break that loose it will pull right out.

Let us know if you still can't get it out and we will come up with some other ideas however, if you can get pictures of the issue, that would help. Thanks
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
SALLYGARCIA
  • MEMBER
  • 2001 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
Location of Crankshaft position sensor on 2001 Chevrolet Silverado 2500 HD 2WD 8.1L
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
RASMATAZ
  • EXPERT
It is near the starter here is a guide and a diagram below to help you get the job done.

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
OUTLAWLOGISTICS
  • MEMBER
  • 2001 CHEVROLET SILVERADO
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 290,000 MILES
I got some super bad gas and my truck stalled out. Purged fuel system, replaced fuel pump, got good fuel pressure but my truck won't crank. It will turn over and it tried to hit on ether but will not crank. I checked all my fuses in both fuse panels. I don't know what else to do.
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

Okay, so let's make sure that your vehicle is getting spark, though. Here is a link below explaining how to check your vehicle's spark plugs for spark:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please get back to us with what you find out and we can go from there.

Thanks,
Alex
2CarPros
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
OUTLAWLOGISTICS
  • MEMBER
Spark plugs are getting spark.
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

Okay, that's good. So this could be a problem with your vehicle's Crankshaft Position Sensor[CKP]. In the diagrams down below I have included a description of your vehicle's CKP operation, instructions for the removal and installation of your vehicle's CKP along with the CKP relearn procedure for your vehicle from the vehicle manufacturer. Please go through these guides and get back to us with how everything turns out.

Thanks,
Alex
2CarPros
Was this
answer
helpful?
Yes
No
+1
Monday, May 10th, 2021 AT 11:34 AM (Merged)
Tiny
CHERYLSHIRK
  • MEMBER
  • 1999 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 3,000,000 MILES
Replaced crankshaft position sensor and know will not crank.
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:35 AM (Merged)
Tiny
KEN L
  • ADMIN
Was the sensor an AC Delco? if not I would replace the sensor with the OEM unit. Here is a guide to help:

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Please run down this guide and report back.
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:35 AM (Merged)
Tiny
STEVE33NJ
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 111,800 MILES
Where is my camshaft and crankshaft position sensors located?
Was this
answer
helpful?
Yes
No
Monday, May 10th, 2021 AT 11:35 AM (Merged)
Tiny
SATURNTECH9
  • EXPERT
In the one diagram it's number 5 on the distributor that's your cam sensor. The other diagram shows you where the crank sensor is. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Was this
answer
helpful?
Yes
No
+4
Monday, May 10th, 2021 AT 11:35 AM (Merged)

Please login or register to post a reply.

Sponsored links