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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1051 (Engine Controls And Fuel - 6.6L - DTC P02E7 To DTC P0699) >> DTC P0336 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure that the CKP sensor circuits are not routed too closely to the fuel injector wiring after-market add-on electrical equipment, solenoids, relays or motors.
  2. Ignition OFF, inspect the CKP sensor for correct installation.
    • If the sensor is loose, inspect the sensor and the O-ring for damage, replace as necessary.
  3. Inspect the engine for the following conditions:
    • The engine oil for debris
    • The crankshaft reluctor wheel for damage or foreign material passing between the sensor and reluctor wheel
    • The timing chain, tensioner, and sprockets for wear or damage
  4. If no other condition is found, replace the CKP sensor.
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