OEM 2007 Cadillac DTS Spark Plug

2007 Cadillac DTS Parts Questions & Experts Answers

• Q: How to replace a spark plug on 2007 Cadillac DTS?

  A: When replacing spark plugs initiate the process by removing the needed Ignition Coil while letting the engine cool to avoid thread damage to the Cylinder Head. Before installing the Spark Plug remove any contaminated materials from the recess area by using a thread chaser. The maintenance begins with removing Spark Plug(s) from the engine while conducting an inspection. Vehicle-engine safety requires installing new spark plugs from authorized product lines only because alternate plug temperatures may destroy the engine system. Inspection of new and reconditioned spark plugs requires a round feeler gauge for checking the gap against specifications; verify that the gap matches the specifications after handling. User a thread chaser to check Spark Plug insertion before fully seating it gradually into the Cylinder Head. Incomplete seating or cross-threading may result in overheating with potential thread destruction. Place the Spark Plug(s) into position before tightening each one to 15 n.m (11 lb ft) while reattaching the right Ignition Coil.