Hi, I decided to change my plugs in my 2011 wk2 with 85K miles. It ran ok but idle was rough. Much to my surprise, this was harder than I thought; took me almost 5 hours. Here are the steps I took and some things that I experienced.
I bought OE champion plugs, Thread anti-seize, die-electric for plugs wires and electrical connectors and intake manifold gaskets.
I removed the engine cover, intake hose with air box cover and disconnected the air sensor.
The first 3 plugs on passenger side are in plain view. Took 20 minutes to change these. unscrew coil, pull straight up. 5/8 socket. Torque to 13 ft lbs. Done!
The remaining time was spent on the drivers side. You have to remove the intake manifold. No easy task!
First I disconnected the electrical connections to the throttle body, then I disconnected the vacuum hose behind the throttle body. There are two nuts that need to come out on the bracket behind the throttle body.
Then there are 7 screws that hold the intake manifold. The one near the firewall is difficult. Then you need to remove the two nuts on the drivers side of the intake manifold and since these are posts, you have to remove the two nuts that hold these brackets on. Loosen just enough to pull the bracket back off the posts. Again, the lower nut on the bracket near the firewall took the most time. There is also a clip that holds the AC hardline which needs to come off. I pryed it off with a screwdriver. not easy! then taking that nut off in that very tight space was not fun! This was the worst part of the job.
Once everything is loose, the manifold can come off.
Couple of tips: Ensure you take the screws completely out of the manifold. Otherwise they will drop down and prevent the manifold from sliding out. You don't need to remove the hose at the back of the manifold, there is enough slack to move it over. There are a couple of wire ties you have to cut. The one holding the hose at the driver's side corner of the intake manifold and the electrical harness going to the throttle body.
I also ordered new intake manifold gaskets since they were easy to replace.
With 85K miles, these plugs were worn pretty badly. No way they could go another 10K miles without degrading performance. There are a few youtube video's of a guy changing his plugs on a charger- same engine. There are slight difference which I have outline here.
Good luck! (sorry, I did not take any pictures)
I bought OE champion plugs, Thread anti-seize, die-electric for plugs wires and electrical connectors and intake manifold gaskets.
I removed the engine cover, intake hose with air box cover and disconnected the air sensor.
The first 3 plugs on passenger side are in plain view. Took 20 minutes to change these. unscrew coil, pull straight up. 5/8 socket. Torque to 13 ft lbs. Done!
The remaining time was spent on the drivers side. You have to remove the intake manifold. No easy task!
First I disconnected the electrical connections to the throttle body, then I disconnected the vacuum hose behind the throttle body. There are two nuts that need to come out on the bracket behind the throttle body.
Then there are 7 screws that hold the intake manifold. The one near the firewall is difficult. Then you need to remove the two nuts on the drivers side of the intake manifold and since these are posts, you have to remove the two nuts that hold these brackets on. Loosen just enough to pull the bracket back off the posts. Again, the lower nut on the bracket near the firewall took the most time. There is also a clip that holds the AC hardline which needs to come off. I pryed it off with a screwdriver. not easy! then taking that nut off in that very tight space was not fun! This was the worst part of the job.
Once everything is loose, the manifold can come off.
Couple of tips: Ensure you take the screws completely out of the manifold. Otherwise they will drop down and prevent the manifold from sliding out. You don't need to remove the hose at the back of the manifold, there is enough slack to move it over. There are a couple of wire ties you have to cut. The one holding the hose at the driver's side corner of the intake manifold and the electrical harness going to the throttle body.
I also ordered new intake manifold gaskets since they were easy to replace.
With 85K miles, these plugs were worn pretty badly. No way they could go another 10K miles without degrading performance. There are a few youtube video's of a guy changing his plugs on a charger- same engine. There are slight difference which I have outline here.
Good luck! (sorry, I did not take any pictures)