OEM 2007 Buick LaCrosse Spark Plug

2007 Buick LaCrosse Spark Plug Parts and Q&A

• Q: How to replace a spark plug safely and effectively on 2007 Buick LaCrosse?

  A: Flash the ignition off before you remove the Ignition Coil while wearing safety glasses to protect your eyes but maintain caution regarding compressed air. Clean the Spark Plug recess area before maintenance to stop dirt or foreign material intrusion that might harm the engine and dirty the Cylinder Head threads leading to improper new plug seating. A thread chaser offers the best method to eliminate contaminants from threaded areas. Compressed air cleanup of the Spark Plug chamber will become essential after the engine has time to cool since rapid hot Spark Plug removal could lead to thread seizing damage of the Cylinder Head threads. Vehicle engine health relies on using spark plugs specified for the vehicle because different heat levels in plugs can cause serious damage to engine components. All new and reconditioned spark plugs must undergo gap testing with a round feeler gauge because handling can affect their original spacing. A Spark Plug should have exactly the same Spark Plug gap measurement as its original specification. Use a thread chaser to clean threads before installing the Spark Plug since improper thread placement or incomplete seating could cause overheating while allowing exhaust to escape through unscrewed threads which may also damage the threads. The technician should apply 20 n.m (15 lb ft) torque force when installing the Spark Plug with subsequent reinstallation of the Ignition Coil.