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2002 Chevy Blazer Relearn Crankshaft Sensor

Tiny
PIONEERLOGS
  • MEMBER
  • 2002 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 93,000 MILES
How do you perform a relearn on a crankshaft sensor. Is this expensive if you take it to a dealer?
Thursday, April 3rd, 2008 AT 5:34 AM

3 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
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
  • MEMBER
  • 2 POSTS
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
  • MECHANIC
  • 3,361 POSTS
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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