Step 2: Lift the protective shield inside the wheel well to expose the vehicle's spark plugs.
NOTE: When replacing spark plugs, it's important to replace ALL of them at the same time. However, during the installation, replace them ONE AT A TIME, to ensure that the spark plug wires do not get crossed up!
Step 3: Twist and remove the spark plug wire boot from the end of the spark plug.
Step 4: Using the spark plug socket/ratchet with extension, loosen and remove the spark plug from the vehicle.
During this installation, some spark plugs may require the use of a flex-joint to reach them.
Step 5: Most spark plugs come gapped, but just to be sure, use a spark plug gapper to be sure that they are gapped at .060 inches.
Step 6: Tighten the NEW spark plug into position. Be careful not to OVERTIGHTEN!
Step 7: Attach the spark plug boot to the new spark plug.
Step 8: Repeat this process for the remaining spark plugs.
NOTE: Remember"¦as we mentioned earlier, you may need to use the flex-joint for particular plugs during this installation.
These Part Change / Installation Instructions Apply to
0 S10, Blazer, GMC Jimmy Spark Plug Replacement Instructions