Think you might have to take off the intake manifold, it a process
you have to remve the intake manifold
6 spark-plugs.....
If your Diamante is the Dohc 6 cyl. motor in it then you have to remove the entire intake manifold to replace the back 3 plugs I did it in about 4 hours with not many tools and I am a female. So it can be done.
Remove intake plenum, sorry, but this is a lot of work. Regards Martin
On the engine head !
its probably the spark plugs, they need to be changed i have an 03 diamante and the same thing was happening to me. I had the spark plugs changes and the problem was solved.
The 2008 Lancer uses a 4 cylinder engine, therefore it uses 4 spark plugs.
2002 galant , can't find the spark plugs
Depends on the engine, the 2.0l and 2.4l options were 4 cylinders with 4 spark plugs, the 2.5 L Mitsubishi 6G73 V6 option required 6 spark plugs.
Underneath the plastic cover that has MIVEC written on it.
NGK platinum plugs
On top of the engine block when you open the hood you will see black cords attached to your engine block you will need to give a good tug to expose the spark plugs. -Cody