Thanks! Does anyone have advice for doing spark plugs, hemi 16 of them!!! One dealer said 250.00 one 350.00 and is there a plug that last longer so I don't have to do this so often? I have heard the injectors have to come off also. I've been able to change plugs my whole life but with this trk I'm thinking it may be more a pain n the butt. It's got a little lift kit and levelers on the front, so it not like working on my ole 56 Bel Air. I've put a cold air induction on so I won't have to take the "box" off the top of the motor. Any ideas welcome
s

 

I will move this thread to the third generation Ram section,
FF

 

Changing the plugs is not hard but yes you need to change all 16. OEM plugs (Champions) are about $2 each. Dont let the dealer screw you. Change them yourself. Takes maybe 2-3 hours. As far as how often to change them, it will likely be a while becfore you put another 50k+ on the truck.

Just go get your socket wrench, a spark plug socket, a 3" extension and a swivel and get it over with.

 

And, it's not the injectors that come off, it's the coil packs. There is 1 for every two plugs. I think there are (2)? screws that come off, and GENTLY pop off the coil pack. Like Weed said, it takes 2-3 hours. Just get a case of beer, play some tunes and save yourself some $.

 

THX. I meant to cover that. Its a 10mm on the coil packs BTW.

 

Old man new to threading. OK guys, you've talked me into it. I'll get back with you on it. While I'm here, one more if I may. My serv 4wd dash light comes on when I go into 4lo and sometime when I go to auto. Should I change fluids in fr/rear diffs and transfer case or could it be electrical. Trk had 71kmi when I bought it in 3/10 and now has 87k? Thks guys

 

When in doubt change it out!!! Seriously though most recommend changing diff fluid every 30K. I don't know if that will make your light go off but your WAY overdue regardless.

 

2 more little things. Get some anti-seize and put some on the threads of all 16 plugs. And, buy a tube of di-electric grease. Put that on the spark plugs before you put the boots back on.

 

To make the plug change easier take your front wheels off and take the front wheels well liners out as well. this gives you much better access to the plugs, and you can sit on a 5 gal bucket to do the work vs killing your back bending over the radiator support and trying to get to them from the front/top.

As the others have said it is pretty straight forward. remove the coil pack (2 X 10mm bolts) gently pry the coil pack off the plugs. Remove the old plugs, gap your new ones, anti seize, dielectric grease and back in the new ones go. make sure you don't try to go hulk smash tightening them you'll destroy the threads in these aluminum heads.


best of luck
nateroach

 

I didn't know Hemi's have Aluminum Heads....very important to know cause the threads could get wrecked much easier . Probably most newer engines have aluminum heads, etc.