OEM 2006 Lincoln LS Spark Plug

2006 Lincoln LS Spark Plug Parts Questions & Experts Answers

• Q: How should you inspect a spark plug for issues such as bridged gaps, deposit build-up, and signs of fouling on 2006 Lincoln LS?

  A: Examine the spark plug to check if the gap is bridged because excessive oil or carbon fouling creates deposits that block this critical distance between electrodes. Procedures for cleaning the spark plug will be implemented if needed. Test for oil damage by inspecting the black wet areas on insulator shell bore electrodes as this shows when oil exceeds the wear limits of rings or pistons or if valve-to-guide clearance is too high or bearing components have worn pieces before replacing the spark plug. The presence of black flaky carbon deposits on the spark plug insulator tips, shell expose points and electrodes demands new spark plug installation. This form of carbon fouling typically stems from improper spark plug heating functionality or soiled air filtering systems and excessive idling or fuel-richness levels. A proper check for normal burning requires verification of light tan or gray deposits on the firing tip. The installation of a hell-coil insert unauthorized in spark plug threads leads to engine damage which requires replacement of the spark plug as well as incorrect ignition timing or using the wrong fuel type. Signs of pre-ignition include melted electrodes alongside potentially damaged insulators with metallic deposits detectable through these conditions. White or light gray spots coupled with a bluish-burnt appearance of electrodes indicate overheating resulting from engine overheating, the wrong type of fuel, loose spark plugs, spark plugs with an incorrect heat range, low fuel pump pressure or incorrect ignition timing so new spark plugs should be installed. The presence of fused deposits marks bubbles or blisters that result from sudden acceleration therefore requires installation of new spark plugs.