How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Lurch Your Own Question
Lurch, Aftermarket & Factory Electronics
Category: Car
Satisfied Customers: 21042
Experience:  Ford, Chev Cert, Heavy Line Mech, Mobile Electronics.Sales, Installation & Repair for 30 years.
Type Your Car Question Here...
Lurch is online now
A new question is answered every 9 seconds

The crank position sensor in a 8.1 L vortec in my 2002 Avalanhe

Resolved Question:

need to know how to replace the crank position sensor in a 8.1 L vortec in my 2002 Avalanhe.
Submitted: 9 years ago.
Category: Car
Expert:  Lurch replied 9 years ago.

Scan Tool will be needed

Here is Chevrolet procedures:




Lurch and 7 other Car Specialists are ready to help you
Expert:  Lurch replied 9 years ago.
That was from the Chevrolet Manual
Customer: replied 9 years ago.
Reply to Lurch's Post: Hello, Though you provided how to remove the sensor, there is nothing provided on where or how to get to the sensor. I cannot even locate it by your diagrams. On the small block engine it is towards the bottom of the block, so where and how do I get to the sensor on the big block?
Expert:  Lurch replied 9 years ago.


Not sure of your experience, but that is GM instructions from manual for:
2002 Chevy Truck Avalanche V8-8.1L

As you see the CKP is located in the rear of the engine, top at the Bellhousing mount of the Block.

This is not a job for unskilled.
7 of 1 - 10 labor skill

Also, Updated Scan Tool will be needed to reprogram