[Antonino Paino]

I am gong to replace the spark plugs on my 2006 dts, I know there,s a unit to remove for the rear plugs, is there any thing else that I should be aware of, the car has 83,000 miles, Thanks Tony.

 

[cadillac19792006]

Why are your replacing the plugs at 83k it should be done at 100k

 

[mwilson]

Well, maybe he wants to do it simply for peace of mind. I did mine recently as I had no idea if they had been previously changed or not. Now I know.

I used a 6" chunk of rubber fuel line that just fit the top electrode on the plugs. Made it very easy to take the old ones out and to start the new plugs into the head. Very handy on the rear plugs.

 

[RonaldP]

To get at the rear plugs you need a good assortment of 3/8 drive adapters swivel ect. I did mine last week. Once you find a good combination for the back same setup work for all 4 plugs and its not that bad of a job. I'm sure there a best way to take the rear valve off too but you should be able to figure it out.

 

[mwilson]

This video is pretty helpful if you haven't seen it yet. Shows what you are up against for the rear four. BTW, that's where the rubber fuel line comes in real handy.

https://www.youtube.com/watch?v=Js5edkKUPDg

 

[Hittzman]

This video is pretty helpful if you haven't seen it yet. Shows what you are up against for the rear four. BTW, that's where the rubber fuel line comes in real handy.

The video is simple but clearly explained. I saw it once before. I presently have 101k plus miles on my 2009 DTS and I would like to change my plugs. I bought the car used at 97k miles and dont know if the plugs were changed before I bought it. It idles perfect and I have no codes but would like to keep up with the recommended scheduled maintenance.

 

[07 Caddy DTS102k]

To get at the rear plugs you need a good assortment of 3/8 drive adapters swivel ect. I did mine last week. Once you find a good combination for the back same setup work for all 4 plugs and its not that bad of a job. I'm sure there a best way to take the rear valve off too but you should be able to figure it out.

I hope this helps but you can get magnetic spark plug sockets cheap $10 maybe 15 now but I bought mine 10 years ago