How to Replace Ignition Coils 06-10 Chrysler 300
Difficulty: Advanced · About 80 min · Chrysler 300
Replace the ignition coils, including removing the upper intake manifold for the hard-to-reach ones, on a 2006-2010 Chrysler 300.
Tools you will need
- Gloves
- Socket extensions
- Flat blade screwdriver
- Torque wrench
- Paper towels
- Metric wrench set
- Slip-joint pliers
- Ratchet
- Needle-nose pliers
- Brake parts cleaner
- Metric socket set
- Pick
Parts and supplies
- Ignition coils
Steps
- Remove ignition coils 2 and 4
Open the hood, disconnect each coil's wiring harness, remove its 10mm bolt, then pull it up and out.
- Install ignition coils 2 and 4
Put the new coils into place, connect their wiring harnesses, then insert each 10mm bolt.
- Remove the upper intake manifold
Loosen the throttle body hose clamp with a flat blade screwdriver, pull the coolant line out and the intake hose off the throttle body, remove the sensor from the hose, disconnect the two hoses and the MAP sensor from the manifold, disconnect the wiring harnesses from the intake control valves and the throttle body, remove the throttle body's two 10mm nuts, remove the manifold's seven center 10mm bolts and two bracket 10mm bolts, remove the throttle body bracket's two 15mm bolts and the manifold brackets' two 15mm bolts, pull off the manifold, then stuff paper towels into the opening to keep debris out.
- Remove the remaining ignition coils
Disconnect each coil's wiring harness, remove its 10mm bolt, then pull it up and out.
- Install the remaining ignition coils
Put them into place, connect their wiring harnesses, then insert each 10mm bolt.
- Reinstall the upper intake manifold
Remove the paper towels and clean the manifold surface with brake cleaner, connect the PCV breather hose, pry out the old gasket with a pick and press in the new one along with a new EGR seal, set the manifold into place, click the transmission dipstick in, start and tighten the seven center 10mm bolts to about 9 ft-lb working from the center out, reconnect the MAP sensor and intake control valve harnesses, refit the brackets and their 15mm and 10mm bolts, reconnect the PCV and other hoses, reconnect the throttle body's wiring harness and bracket and its 10mm nuts and 15mm bolts, then push the intake hose onto the throttle body and tighten its clamps, snapping the coolant line and MAP sensor back in.
Check your vehicle’s repair manual for exact specifications and fit.