2002 CHEVY BLAZER RELEARN CRANKSHAFT SENSOR

  • Tiny
  • Pioneerlogs
  • 2002 CHEVROLET BLAZER

Electrical problem
2002 Chevy Blazer 6 cyl Four Wheel Drive Automatic 93000 miles

How do you perform a relearn on a crankshaft sensor. Is this expensive if you take it to a dealer?

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Thursday, April 3rd, 2008 AT 5:34 AM

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  • Tiny
  • Rhall77
  • MEMBER

You will need a tech 2 to do it. Where I live they charge an hours worth of labor for the job, but it only takes 45 sec to perform if the car is warmed up.

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Thursday, April 3rd, 2008 AT 7:26 AM
  • Tiny
  • Pioneerlogs
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Would it help if I returned the 'aftermarket' crankshaft sensor and bought a new GM sensor for this vehicle. I heard sometimes you can do this and it does not have to be set up 'learned'?

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Thursday, April 3rd, 2008 AT 8:41 PM
  • Tiny
  • Rhall77
  • MEMBER

Not sure on that, may I ask why do you think you need to do a crankshaft relearn. The only time you should have to do it is when you reprogram the pcm.

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Friday, April 4th, 2008 AT 7:06 AM

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