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Where is the cam sensor on a 1998 4 wheel drive Chevrolet Z71 pickup truck?

The exact location of the camshaft position sensor (CMP sensor) on a 1998 Chevrolet Z71 4x4 depends on the engine it has. The Z71 came with several engine options that year. To find it, you'll need to know your engine's displacement (e.g., 4.3L, 5.7L).

However, generally speaking, the CMP sensor is usually located on the passenger side of the engine, either on the top of the engine block near the camshaft, or on the front of the engine near the distributor (if equipped). It's often a small, one or two wire sensor, sometimes with a connector that is easily accessible.

To find it accurately:

1. Identify your engine: Check your vehicle's documentation or the engine block itself for the displacement.

2. Consult a repair manual: A Haynes or Chilton manual specific to your year and engine will show you a diagram and the exact location of the CMP sensor. Online resources like AutoZone's repair guides might also be helpful if you know your engine size.

3. Search online with your engine code: A Google search including terms like "1998 Chevy Z71 5.7L (or your engine size) camshaft position sensor location" might yield pictures and helpful forums.

Caution: Working on your vehicle's engine can be dangerous. If you're not comfortable with automotive repair, take it to a qualified mechanic.