I need to know where the crankshaft sensor is?

Tiny
COREYLEO
  • MEMBER
  • 9 POSTS
  • 1997 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
I took the crankshaft sensor out and if I hold the bracket the sensor moves in the bracket should it move of should it be stationary
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Monday, May 10th, 2021 AT 11:37 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
It should not move. If it does, it will mess up engine timing along with other things. Check out the diagrams below to see the sensor location and how to remove it.
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Monday, May 10th, 2021 AT 11:37 AM (Merged)
Tiny
COREYLEO
  • MEMBER
  • 9 POSTS
Thanks for the answer I have replaced everything ignition wise but the camshaft sensor and crankshaft sensor can one or both of these caused no start. Thanks for the help
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Monday, May 10th, 2021 AT 11:37 AM (Merged)
Tiny
ZACKMCBRIDE
  • MEMBER
  • 1 POST
  • 1997 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 18,000 MILES
Where is my crank sensor located?
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Monday, May 10th, 2021 AT 11:38 AM (Merged)
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I am attaching the procedure for the crank sensor. If you look just to the side of the crank pulley you should see it.

Let us know if you need more info.

Also, here are some guides about the CKP sensor that is good information:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement
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Monday, May 10th, 2021 AT 11:38 AM (Merged)
Tiny
BAGOLDPANNER
  • MEMBER
  • 3 POSTS
  • CHEVROLET SILVERADO
Book said this could be the crank or the cam sensor. I was told it had no cam sensor?
The motor will not time, if I change the position of the distributor the computer compensates for it.

My Question is this:
When I put the Harmonic Balancer on I had a kit of parts that came with the motor and there was a sleeve that came with the new balancer and it this parts kit. It fit over the crank shaft and I knocked it into the timing chain cover.
Is this part interfering with the Crank Sensor reading?
Could it have damaged the sensor itself?
Should it not be there?
Or do I just need to get a new Crank Sensor?

Thanks, Dave
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
CLY
  • MECHANIC
  • 308 POSTS
It does have a Cam sensor. It is in the distributor. It is a hall effects senor that works off the ring in the distributor. I would check and make sure that the distributor is properly installed. If it is one tooth off it will set the light. Also if it set incorrectly you will not be able to get it in time. The distributor is supposed to be set to Zero and the computer adjusts all the timing. If the readings from the Crankshaft sensor and the Camshaft sensor are not corresponding the code will set. I would say that it has to be something with the way you have that distributor in there.

Cly
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
BAGOLDPANNER
  • MEMBER
  • 3 POSTS
I'll check it again, but I thought the same thing and have installed the distributor 3 times now.
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
BAGOLDPANNER
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  • 3 POSTS
Well, I went through pulling the distributor and setting TDC again. Same thing.
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
CLY
  • MECHANIC
  • 308 POSTS
Only thing that I can think of is that the distributor must be bad. Make sure the rotor fits on the distributor nice and tight. If that looks okay I would say to replace the distributor.

Cly
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
CLY
  • MECHANIC
  • 308 POSTS
It is setting a P1335. If it was just the relearn issue then it would set a P1336 for the cam sensor variation not being relearned. I still think it something to do with that distributor being bad and that it needs to be set on zero after it is replaced.

Cly
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
DRAUTOCOM
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  • 1 POST
This does not mean the distributor is bad it is most likely one or two teeth off? It can have minor adjustments to it but you need a good scan tool to set it it has to be with in + or minus one to two degrees this can be viewed on dealer or high end snap on or Matco scanners as well as a few others. If you set it and it still is reading a good bit off 30 to 50 degrees you either have a bad distributor gear or a bad cam sensor the cam sensor is located inside the distributor. If you suspect it is the gear at the bottom of the distributor grab the rotor check for excessive play if it seems loose that is probably the problem you can just replace the gear.
If that is the problem and you have the time to wait you could order a complete distributor for some where for not much more if not less than the individual parts.
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The distributor is not for timing at all. The ECM controls then engine timing. Check out the diagrams (Below). Please let us know what happens.

You need a scan tool that can see what is called the cam retard in degrees. That setting needs to be as close to 0 as possible. When it is not set correctly, this code will set and it means the cam and crank sensor is not in sync.

1. Bring cylinder number one piston to Top Dead Center (TDC) of compression stroke.

2. Remove the distributor cap bolts and discard.
3. Remove the distributor cap.

4. Install a NEW distributor gasket onto the distributor.

5. Align the indent hole on the driven gear with the paint mark on the distributor housing.
6. Ensure that the distributor rotor segment points to the cap hold area.

7. Align the slotted tang in the oil pump driveshaft with the distributor driveshaft. Rotate the oil pump driveshaft with a screwdriver if necessary.
8. Align the flat (1) in the distributor housing toward the front of the engine.
9. Install the distributor and distributor clamp.

10. Once the distributor is fully seated, align the distributor rotor segment with the number 8 pointer that is cast into the distributor base.
11. If the distributor rotor segment does not come within a few degrees of the number 8 pointer, the gear mesh between the distributor and camshaft may be off a tooth or more. Repeat the procedure in order to achieve proper alignment.

NOTICE: Refer to Fastener Notice in Service Precautions.

12. Install the distributor clamp bolt.
Tighten the distributor clamp bolt to 25 Nm (18 ft. Lbs.).
Check out the diagrams (Below). Please let us know what happens.
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Monday, May 10th, 2021 AT 11:39 AM (Merged)
Tiny
FUBAR69
  • MEMBER
  • 5 POSTS
  • 1998 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Where is the crankshaft position sensor located at and are they expensive to replace?
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Monday, May 10th, 2021 AT 11:40 AM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Try not to start new posts, keep replying to old post, it makes it easier on us to keep track of. Very inexpensive repair. Sensor is located to the left of the harmonic balancer, you cant miss it.
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Monday, May 10th, 2021 AT 11:40 AM (Merged)
Tiny
FUBAR69
  • MEMBER
  • 5 POSTS
Thanks again and sorry about the new post. A newby mistake. I tried to give you feedback and pionts but I have no points and it wont let me give you any. You have been super helpfull and I appreciate it.
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Monday, May 10th, 2021 AT 11:40 AM (Merged)

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