2007 Cadillac Tune up needs.

Tha'st a cover and it should pull off, maybe a nut holding it. If you look closely yo should see it. The spark plugs are in the middle of the head and have coils overthem so you have to pull the coils first. Make sure engine is cold an dnot hot when you takeout plugs and put anti-sieze ont threads of the plugs before installingthem. You can go to the DIY on site here and look under tune up as well.

You don'tneed to pull the intake manifold off to replace the spark plugs. The plugs are beneath the coils. If it says "Cadillac" on it or someother thing like enginetype it's acover that is held on by rubber grommets on the bottom of it. I can send a pic of the intakebut i'm positive you dont'need to remove it. Here is the pic. Then you disconnect the coils and pull them off and take out plugs.

Nexttime say what engine is in it. Hre is the engine cover and how it is mounted. Also included is a magnifiedpicture of the coil that you need to remove. You have to unhook the electrical connection prior to removing the bolt that holds it in then you take the plug out under it.

By the way nobody says it was easy. You don't need to pull the intake. If you do go ahead and do it remember to replace the gasket as well.