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  • 3.5L V6 300 Charger Magnum Ignition Coil Replacement

The 3.5L V6 in the Chrysler 300, Dodge Charger, Dodge Challenger, and Dodge Magnum uses 6 individual ignition coils.

This procedure will be almost the same on these vehicles:

2006-2010 Chrysler 300 3.5L V6

2006-2010 Dodge Charger 3.5L V6

2006-2008 Dodge Magnum 3.5L V6

2009-2010 Dodge Challenger 3.5L V6

 

The three on the left bank are easy to access, and the other 3 are a little more difficult as the intake manifold needs to be removed. For anyone with intermediate experience, this is a fairly simple replacement. We want to mention a few things you need to know before starting this job:


The EGR tube is behind the intake manifold near the firewall, and has a gasket. It is not held in by bolts. When you remove the manifold, remove it while carefully pulling forward/upwards (towards the front of the car). If you damage the seal, you will need to replace it. It isn't expensive at all, but being able to do this without damaging can save you a trip to the auto parts store.

In order to do this, the transmission dipstick tube will need to be removed. Don't worry, you can remove this without any transmission fluid coming out. This job can be done without removing this transmission dipstick tube, but the dipstick tube gets in the way and does not allow you to carefully remove the intake manifold, making it easier to damage the EGR seal during removal and installation. You will need to get underneath the car to do this. The tube is only held in with one 8mm bolt. Always properly secure the car with jack stands before getting underneath it. 

Tools needed:

  • Flathead screwdriver (possibly phillips if the intake clamps have been relaced)
  • 3/8 ratchet and 3/8  sockets
  •  8mm socket
  • 10mm  socket and wrench (wrench for right/passenger side brackets)
  • 15mm socket  and wrench (wrench for right/passenger side brackets)
  • 3/8 Swivel socket (makes removing the bracket bby the throttle body easier)
  • Jack and jackstands or tire ramps to access underneath the vehicle
  • 5/8 spark plug socket and extension (if you are going to change the spark plugs as well)

 

1: Remove the air box/intake tube.

    -Disconnect the airbox as if you were changing the air filter. Remove the band clamp that holds the intake tube to the throttle body, remove the sensor, and anything else connected to the intake tube. When removed, all you willl see is the air filter. The top part of the airbox box and the intake tube will be removed all together.


2. Remove the brackets that support the manifold. One is connected to the throttle body (2 15mm bolts on bottom, 1 10mm bolt on top). The other two are on the right hand (passenger side) of the intake manifold.

3. Disconnect the Runner valve solenoids (on the front of the manifold). To remove these connectors, slide the red lock up/away from the solenoids and the sqeeze the connectors and remove as any normal connector. 

4. Remove the map sensor (same red lock like on the previous connectors)

5. Remove the throttle body connector (same red lock)

6. Remove the 7 10mm bolts on the top of the manifold.

7. Remove the two right hand (passenger) side brackets. Top bolts are 10mm, bottom bolts are 15 mm.

8. Remove the three vaccum hoses on the back on  the manifold (near the throttle body)

9. Get underneath the car, and on the passenger's side of the transmission pan is where the transmission dipstick tube is located. There is 1 8mm bolt holding it down. Remove that. 

    -When you get back on top underneath the hood, you can wiggle the transmission dipstick tube up and out of the way.

10. Now you can remove the manifold. Lift the front of it up a little bit, and pull it forward.

11. Now you will have full access to the coils. Before going further, we recommend to cover up the intake ports with a rag/etc. The lastthting you'd want to do is accidentally drop anything down those ports.

12. Unplug the connectors to the coils, and remove the 10mm bolts holding the coils down, and simply remove and replace the coils. 

 

The installation is the reverse process. The only thing I want to mention is to make sure the EGR tube seal is properly installed when connecting it up to the intake manifold. This is muich easier if the transmission dipstick tube has been removed. 

 

You are finished!