OEM 2003 Chevrolet Corvette Spark Plug

2003 Chevrolet Corvette Parts Questions & Experts Answers

• Q: How to service and repair spark plugs on 2003 Chevrolet Corvette?

  A: Service and repair operations for spark plugs should start by removing fuel rail covers and Spark Plug Wires after waiting for engine cool-down to evade damages to Cylinder Head threads. First remove contaminants from the Spark Plug recess area through thread chasing to protect the correct seating of new plugs. Before removing each Spark Plug rotate it loosely by 1 or 2 turns and wipe away dirt from the plugs using either a brush or compressed air. The mechanic needs to remove one Spark Plug at a time while labeling the appropriate cylinder number on each tray. Verify the Spark Plug gap by modifying it until it reaches the required measurement of 1.524 mm (0.060 in). Tide the spark plugs into their designated cylinders before proceeding to tighten them according to these specifications: new cylinder heads require 20 n.m (15 lb ft) torque while all others need 15 n.m (11 lb ft). The last step should include reinstallation of Spark Plug Wires followed by the fuel rail covers.