E 150 1/2 Ton Van V8-5.4L SOHC VIN L (1997)
3. Remove the LH spark plugs.
4. Inspect the spark plugs for:
-
Deposits bridging spark plug gap (A).
-
Wet black deposits (oil fouling) (B).
-
Dry black deposits (carbon fouling) (C).
-
Overheating (D).
-
Deposits fused on spark plug (E).
-
Pre-ignition damage (F).
-
Normal spark plug (G).
5. Adjust the spark plug as required.