Just about to do it. They appear to be at the back of the engine, and the cam box cover complete with the intake maifold has to come off to get at them. Hopeless design, but most Jap transverse engines are like that.
2002 galant , can't find the spark plugs
NGK platinum plugs
To change the spark plugs on a Mitsubishi Colt Ralliart, first, ensure the engine is cool and disconnect the battery. Remove the engine cover if applicable, then locate the spark plugs and carefully detach the ignition coil connectors. Unscrew the old spark plugs using a spark plug socket, and then install the new plugs, ensuring they're properly gapped. Finally, reconnect the ignition coils, replace the engine cover, and reconnect the battery.
Four.
Six
You must remove the entire intake manifold for you to have access on the three spark plugs located underneath it. it is advisable that a qualified Mitsubishi technician should do this.
Once on 1-2 year on regular spark plugs. Once every there years on High end spark plugs.
The 2008 Lancer uses a 4 cylinder engine, therefore it uses 4 spark plugs.
Most had a V-6 under the hod, which would mean 6 spark plugs.
All depends on what kind of spark plugs you have. It could either be 30,000 miles or 150,000 miles.
Replacing spark plugs is pretty simple. Disconnect the battery, remove the cover and cables, remove the old spark plugs, put in the new spark plugs, put the cover and wires back on the spark plugs, and reconnect the battery.
You can remove the spark plugs in your 2003 Mitsubishi Eclipse by turning the spark plugs to the left. You should use a 5/8 deep well socket. The spark plugs will come out.