OEM 2000 Lincoln LS Spark Plug

2000 Lincoln LS Spark Plug Parts Questions & Experts Answers

• Q: How to service and repair a spark plug on 2000 Lincoln LS?

  A: Start the process of servicing and repairing the spark plug by uninstalling the ignition coil followed by spark plug removal while clearing the spark plug well with compressed air as a preventive measure. The first step requires examination of the spark plugs to see if gaps are bridged due to build-up from oil or carbon fouling that closes electrode spacing; cleaning the spark plug may be needed during this inspection. Verify the presence of oil fouling by finding black wet deposits on insulator shell bore electrodes because this indicates broken rings and pistons along with excessive valve-to-guide clearance and worn or loose bearings which require attending to before replacing the spark plug. Inspect for carbon fouling by examining black dry fluffy deposits on insulator tips and shell surfaces with electrodes because it stems from improper heat range spark plugs or cautions the car owner about air cleaner dirt and excessive idling and rich mixtures; clean the spark plug when required. A spark plug should display light tan or gray firing tip residues to indicate normal operation and any presence of melted electrodes combined with possible insulator damage calls for new spark plug replacement due to ignition timing or fuel selection mistakes or heli-coil inserts in spark plug openings. Check for overheating signs through inspection of the white or light gray insulator with small black or gray-brown spots and bluish-burnt electrodes. Engine overheating together with improper fuel use, loose spark plugs or incorrect heat range spark plugs, low fuel pump pressure or incorrect ignition timing could lead to these symptoms. Replace the spark plug if overheating occurs. The last diagnostic step involves inspecting fused spot deposits that appear as melted or bubbly formations because of sudden acceleration status. Cleaning or replacing the spark plug might be necessary in this case. Complete the spark plug installation by taking the opposite steps you used during removal and perform gap adjustment per need.