Part name

SHANETAYLOR337

MEMBER
2002 CHEVROLET TAHOE
5.8L
V8
2WD
AUTOMATIC
250,000 MILES

Have oil leaking from a part right above starter, some kind of sensor possibly. Does anyone know the name of this part?

Tuesday, June 23rd, 2020 AT 10:55 AM

3 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good afternoon,

Can you upload a picture of the leak?

The only sensor above the starter is the crankshaft position sensor.

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works

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

That should not leak oil but it does go into the block.

Roy

REMOVAL PROCEDURE

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

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

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1. Disconnect the negative battery cable.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Remove the starter.

imageOpen In New TabZoom/Print

4. Disconnect the crankshaft position (CKP) sensor electrical connector.

imageOpen In New TabZoom/Print

5. Clean the area around the CKP sensor before removal in order to avoid debris from entering the engine.
6. Remove the CKP sensor retaining bolt.
7. Remove the CKP sensor.

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Tuesday, June 23rd, 2020 AT 12:41 PM

SHANETAYLOR337

MEMBER
11 POSTS

Thanks for the very informative response. I can't get under the vehicle anymore as I am handicapped but I do remember oil leaking in this area. Maybe it came from my rear seal or head gaskets. I will have to get someone to check it out more thoroughly. If it's not something that leaks I may have misjudged where it was coming from.I appreciate your time and thanks 2CarPros!

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Wednesday, June 24th, 2020 AT 2:08 PM

ASEMASTER6371