OEM Chevrolet Suburban 1500 Spark Plug

Chevrolet Suburban 1500 Spark Plug Parts Questions & Experts Answers

• Glow Plug
  97226202
  Q: How to ensure the correct spark plug is installed and maintained to avoid driveability issues on Chevrolet Suburban 1500?

  A: Use the correct Spark Plug to prevent driveability problems but verify the heat range to stop both plug fouling caused by cold plugs and engine damage due to hot plugs. Examine the terminal post for damage before testing its stability by twisting the terminal. Check for no irregular bending and complete solidity of the post. The insulator should be checked for flashover and carbon tracking while the Spark Plug boot needs examination for damage and the Cylinder Head recess area must be free of moisture since wetness can lead to arcing. Research the insulator for potential cracks that enable electrical charge to arc apart from the electrodes (3, 4). Also check that the center electrode gap to side electrode gap matches specified dimensions to ensure proper operating conditions. Suitable Spark Plug torque should be verified because incorrect torque levels generate operational problems but excessive torque may break the insulator. A visual examination of the insulator tip needs to be done to check for tracking while evaluating the side electrode for wear or breakage together with center electrode assessment for damage or looseness based on a rattling sound. Transparent electrode gaps must be examined for bridged electrodes that result from deposit accumulation while worn or missing platinum pads require inspection along with high levels of fouling on electrodes (3, 4). The inspection of the Cylinder Head's Spark Plug recess area should be completed for checking whether debris or damaged or dirty threads exist which might impact the installation quality. The Spark Plug operates normally with brown to grayish-tan coloration and white powdery dust but carbon fouling presents itself as dry black carbon soot stemming from rich fuel mixtures or leaking fuel injectors or excessive fuel pressure or restricted air filters or improper combustion or diminished ignition system voltage or weak coils or broken ignition wires or improper Spark Plug gap. The operation at low speed or persistent idling will stop the normal burning of combustion deposits and deposit fouling from oil, coolant and additives can minimize spark intensity by forming electrode glaze.