OEM 2009 Cadillac STS Ignition Coil

2009 Cadillac STS Ignition Coil Parts and Q&A

• Q: How to replace the ignition coil for Bank 2 (LP1, LY7) (3.6L) on 2009 Cadillac STS?

  A: Users need to begin replacement of bank 2 (LP1, LY7) (3.6L) Ignition Coil by first turning off the ignition power then removing the engine cover that doesn't require fuel pipe or hose disconnection. Intake Manifold replacement is necessary before Ignition Coil replacement of cylinder 2 while maintaining intactness between the upper and lower manifolds. Start by disconnecting the air cleaner duct from the Throttle Body followed by detaching the pcv hose from the right bank camshaft cover. Begin by removing the Intake Manifold bolts and the Intake Manifold brace bolts (1 and 2) and the brace. After that, return the upper Intake Manifold so it sits securely with the lower Intake Manifold. This creates enough space for Ignition Coil extraction. Start by disconnecting the Ignition Coil electrical connectors then remove Ignition Coil bolts followed by extracting the Ignition Coil pieces. Follow these steps for installation: replace the Ignition Coil(s) with care and apply 10 nm (89 lb in) torque to Ignition Coil bolt(s) before reconnecting Ignition Coil electrical connector(s); upper Intake Manifold (if needed) should be installed afterwards.