OEM Buick Enclave Spark Plug

Buick Enclave Spark Plug Parts Questions & Experts Answers

• Spark Plug
  12681657
  Q: How to replace a spark plug safely and effectively on Buick Enclave?

  A: Wear safety glasses when removing the Ignition Coil(s) then handle with caution near compressed air. Thoroughly clean the Spark Plug recess zone to stop contaminants from getting into the Cylinder Head because such material might harm the engine or ruin the Cylinder Head threads thus blocking proper insertion of the new plug. Use a thread chaser (Tool Required: You must clean threads with a thread chaser (Tool Required: Thread Chaser). Apply compressed air to blow out debris in the Spark Plug hole after checking that the engine temperature is safe because hot engines can seize threads and harm the Cylinder Head. Next, remove the Spark Plug. Check the vehicle specifications to match new spark plugs with the designated type because improper plug selections will damage the engine critically. All new and reconditioned spark plugs require gap measurement through a round feeler gauge for accuracy because handling can affect pre-set gaps. The opened gap needs to align with the manufacturer's recommended Spark Plug gap requirements. Complete thread insertion should happen without any resistance while seated fully in the Cylinder Head. When needed use a thread chaser to prevent cross-threading and overheating problems during the installation process. After positioning the Spark Plug properly install it keeping torque at 20 n.m (15 lb ft) while also reinstalling any necessary ignition coils.