Ford Focus Service Manual: Spark Plugs
Removal and Installation
- Remove the ignition coil. For additional information, refer to Ignition Coil-On-Plug in this section.
- NOTICE: Only use hand tools when removing or installing the spark plugs,
or damage can occur to the cylinder head or spark plug.
NOTE:
Remove foreign material from the spark plug well using compressed air.
Remove the spark plug.- To install, tighten to 12 Nm (106 lb-in).
- Inspect the spark plugs.
Item Part Number Description 1 — Deposits bridging spark plug gap 2 — Wet black deposits (oil fouling) 3 — Dry black deposits (carbon fouling) 4 — Normal spark plug 5 — Pre-ignition 6 — Overheating 7 — Fused spot deposits
- Check and adjust the spark plug gap as necessary.
- To install, reverse the removal procedure.
Spark Plug Inspection
Inspect the spark plug for a bridged gap.
Check for deposit build-up closing the gap between the electrodes. Deposits
are caused by oil or carbon fouling.
Install a new spark pl ...
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