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Crankshaft position sensor?

Tiny
MOONPIEI812
  • MEMBER
  • 2004 CHEVROLET SILVERADO
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 350,000 MILES
Crank no start after fixing wiring plug to sensor in the timing cover front and bottom of engine. What fuses, relays Should I be looking for and do I have to get the new sensor relearned?
Monday, April 8th, 2024 AT 4:14 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,913 POSTS
Hi,

The crankshaft position sensor is controlled and powered via the powertrain control module. The PCM supplies the 12-volt, low reference, and signal circuit to the CKP sensor. So, there isn't a specific relay or fuse I can point you to.

As far as the relearn, there is a variation relearn, but that won't prevent it from starting.

Do you have spark at the plugs? If you have a live data scan tool, is there an RPM signal when cranking the engine?

I attached a pic below of the connector. I highlighted the power supply connector pin. With the key on, is there power present at that pin?

Let me know.

Joe

See pic below.
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Monday, April 8th, 2024 AT 7:40 PM

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