OEM GMC Safari Crankshaft Position Sensor

GMC Safari Crankshaft Position Sensor Parts Questions & Experts Answers

• Knock Sensor
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  Q: How to service and repair the Crankshaft Position Sensor on GMC Safari?

  A: The Crankshaft Position Sensor service starts with scanning the powertrain control module (PCM) through a scan tool to check for diagnostic trouble codes (DTCs) but additional investigation should occur if any dtcs other than p1336 appear. The technician will perform the crankshaft position (CKP) variation learn procedure on the diagnostic tool and check how long the engine's fuel supply becomes cut-off. The scan tool requires users to perform these sequential steps: wheelchair blocking, vehicle brake application, ignition cycle from off to on, maintaining brake pedal pressure, engine start and idling, a/c system deactivation, and transmission placement into park (A/T) or neutral (M/T). The scan tool conducts monitoring of ckp sensor activities together with cmp sensor monitoring as well as engine coolant temperature (ECT). Address any unmet conditions immediately. Enable the ckp system variation learn procedure after preparation but immediately release the throttle whenever engine deceleration occurs to let engine control restore to operator control. Take the engine speed from idle to the specified rpm level by slow throttle actuation while releasing the throttle when the engine reaches the fuel cut-off threshold. After activating the learn status mode the scan tool will show another message. Learned this ignition." engine symptoms need to be checked if the message does not appear and no new dtcs display. Check the dtc list to find details because a dtc is present. After a successful learn procedure conclusion turn off ignition for 30 seconds.