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GM 12557046
Crankshaft Position Sensor

1996-2002 GM

Customer Questions & Expert Answers (11)
GM 12557046 Crankshaft Position Sensor
GM 12557046 Crankshaft Position Sensor
  • Part Description
    Sensor, Distributor (Also Knock Sensor)
  • Replaces
    10154687
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12557046
    Part DescriptionSensor, Distributor (Also Knock Sensor)
    Other NamesPosition Sensor
    Item Dimensions4.2 x 4.2 x 4.2 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces10154687
    ManufacturerGeneral Motors
    SKU12557046
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Trim Engine
    1997-1998 Chevrolet C1500Base, Cheyenne, Silverado, WT8 Cyl 6.5 L DIESEL
    1997-1999 Chevrolet C1500 SuburbanBase, LS, LT8 Cyl 6.5 L DIESEL
    1997-2000 Chevrolet C2500Base, Cheyenne, LS, Silverado, WT8 Cyl 6.5 L DIESEL
    1997-1999 Chevrolet C2500 SuburbanBase, LS, LT8 Cyl 6.5 L DIESEL
    1997-2000 Chevrolet C3500Base, Cheyenne, LS, Silverado8 Cyl 6.5 L DIESEL
    1996-2002 Chevrolet Express 2500Base, LS8 Cyl 6.5 L DIESEL
    1996-2002 Chevrolet Express 3500Base, LS8 Cyl 6.5 L DIESEL
    1996 Chevrolet G30Beauville, Chevy Van, Hi-Cube, Sportvan8 Cyl 6.5 L DIESEL
    1997-1998 Chevrolet K1500Base, Cheyenne, Silverado, WT8 Cyl 6.5 L DIESEL
    1997-1999 Chevrolet K1500 SuburbanBase, LS, LT
    View More
  • Customer Questions & Expert Answers

    Q:
    Is this 12557046 designed for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 12557046 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    What procedure should be selected on the scan tool for the 2002 Chevrolet Express 2500? Posted by Customer
    A:
    Select the crankshaft position (CKP) variation learn procedure on the scan tool and observe the fuel cut-off for the engine in question.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What should be done immediately when the engine starts to decelerate during the learn procedure for the 2001 Chevrolet Express 3500? Posted by Customer
    A:
    Release the throttle.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What is the next step after removing the harness connector for the 2000 Chevrolet Express 3500? Posted by Customer
    A:
    Take out the sensor hold down bolt and the sensor from the timing cover.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What should you inspect on the sensor before installation for the 2000 Chevrolet K3500? Posted by Customer
    A:
    Inspect the sensor O-ring for wear, cracks, or leakage.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What should be done after securing the sensor for the 2001 GMC Savana 3500? Posted by Customer
    A:
    Reconnect the CKP sensor harness connector, lower the vehicle, and reconnect the negative battery cable.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What should be checked if the CKP System Variation Learn Procedure cannot be completed successfully for the 2000 GMC Savana 3500? Posted by Customer
    A:
    Check DTC P1336 Crankshaft Position (CKP) System Variation Not Learned for additional diagnostic information.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What is the next step after removing the harness connector for the 2002 GMC Savana 3500? Posted by Customer
    A:
    Take out the sensor hold down bolt and the sensor from the timing cover.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What procedure should be selected on the scan tool for the 2002 GMC Savana 3500? Posted by Customer
    A:
    Select the crankshaft position variation learn procedure.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What should be done after cleaning the area around the sensor for the 2000 GMC C2500? Posted by Customer
    A:
    Remove the CKP sensor retaining fastener and then the CKP sensor itself.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    Q:
    What is the final step after completing the installation for the 2001 GMC Savana 2500? Posted by Customer
    A:
    Lower the vehicle and perform the CKP system variation learn procedure.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Crankshaft Position Sensor
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 12557046, Excellent Performance and Perfect Fitment

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