How do you change the spark plug behind steering mechanism on a 1996 Chevy Blazer?

You can't change a spark plug *behind* the steering mechanism on a 1996 Chevy Blazer (or any vehicle, for that matter). Spark plugs are located on the engine, typically on the top or sides. The steering mechanism is completely separate and is located under the dashboard and/or in the front suspension/steering linkage area. They are physically distant and unrelated components.

If you're having trouble accessing a spark plug, it's likely due to interference from other engine components. To access the spark plugs on a 1996 Chevy Blazer, you'll need to:

1. Consult a repair manual: A Haynes or Chilton repair manual specific to your 1996 Chevy Blazer is essential. It will provide detailed diagrams showing the location of each spark plug and the proper procedure for removal and installation. This is crucial to avoid damaging anything.

2. Disconnect the battery: This is a safety precaution to prevent accidental shorts or shocks.

3. Locate the spark plugs: Use the repair manual to identify their precise location on the engine. They're usually accessed from the top, but sometimes require removing components like the intake manifold or air cleaner housing.

4. Remove any interfering components: This might involve disconnecting and removing hoses, wiring harnesses, or other parts to gain access. Again, your repair manual is crucial here.

5. Remove the spark plug wires: Carefully disconnect the spark plug wires one at a time, making sure to note which wire goes to which plug. You can use a spark plug wire remover tool to help prevent damage.

6. Remove the spark plugs: Use a spark plug socket (the right size for your engine – check your manual) and a ratchet to remove the plugs.

7. Install new spark plugs: Install the new plugs, ensuring they're tightened to the manufacturer's specified torque. Overtightening can damage the plugs or the engine block.

8. Reconnect the spark plug wires: Reconnect the spark plug wires in their original positions.

9. Reconnect the battery: Reconnect the battery and start the engine.

If you're uncomfortable performing this task yourself, it's best to take your Blazer to a qualified mechanic. Attempting to access spark plugs incorrectly can lead to damage to your engine or injury to yourself. The description of the spark plug being "behind the steering mechanism" suggests a misunderstanding of the vehicle's layout; double-check your understanding of the problem before proceeding.