OEM Chevrolet Suburban 2500 Crankshaft Position Sensor

Chevrolet Suburban 2500 Crankshaft Position Sensor Parts Questions & Experts Answers

• Crankshaft Position Sensor
  12560228
  Q: How to replace the Crankshaft Position Sensor on Chevrolet Suburban 2500?

  A:

  To replace the Crankshaft Position (CKP) Sensor, one should raise and support the vehicle first. Remove the CKP sensor electrical connector, the fuel line bracket, and bolt. Apply penetrating oil on the CKP sensor and let it soak before you remove the sensor. Unscrew the CKP sensor bolt, wiggle the sensor in forward and backward direction, remove it. Check the wear of the CKP sensor. normal wear should be seen on the wear strips whereas, the sensing element should not show no wear. If there is severe or abnormal wear on the sensing element change the sensor. If re-using the old sensor, inspect both O-rings and replace if needed then lubricate the O-rings with clean engine oil. The CKP sensor should seat all the way against the crankshaft reluctor ring, with the upper flange not seating against the engine block. Set the CKP sensor to detach, at that point clearing the hole at the bolt before reinstalling the CKP sensor bolt with adhesive for the threads (use GM P/N U.S. 12345493, GM P/N Canada 10953488, or same if reusing the old sensor). Tighten the bolt to 12 N.m (106 lb in), reattach the CKP sensor with the electric connector, reinstall the fuel line bracket and bolt, lower the vehicle, and perform CKP system variance learn subroutine.