What is the sensor on the block near the starter?

Rebecca Butcher

Asked by Oct 28, 2014 at 03:23 PM about the 1988 GMC Sierra C/K 2500

Question type: Maintenance & Repair

2 Answers


I think it is the camshaft positioning sensor can you take a pic of it and post it


That should be your knock sensor on the passenger side of the engine block.

Your Answer

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