[swat455]

so im havin elder son 11 do my dist cap and well was going to have him do the plugs and wires but the ones in backside are not cool at all to get too and well with my acdf neck surg I cant even think about havin to help with the back so whats the norm going rate for mechs to replace plugs and wires if I supplied the parts on the 94 deville 4.9 .. also what kind of stock plug is in these copper or platinum plugs from fact ......

 

[Ranger]

Factory plugs are platinum tipped. That's what gets you the 100,000 mile change interval. Non-platinum will work, but won't last as long.

No clue on price of a tune-up. Never paid for one. :noidea:

 

[swat455]

well if there are plats then the plugs should be good . the car has 42,000 . the cap & rotor had corrosion so glad to replace those as they were alum and not brass .got a lifetime one from az .. do you think the plug wires are still good ?? they were flexable at cap . would age hurt them??? car feels like its at a lower rpm now at idle

 

[MoistCabbage]

I thought all 4.9's had copper plugs from the factory?

 

[brougham]

The later years anyway if not all were platinum.
It shouldn't too much, maybe an hour labour or so if they are doing all of them so should be a bit less for just the rears. They can be hard to get to.

 

[Ranger]

do you think the plug wires are still good ?? they were flexable at cap . would age hurt them???

Hard to say about the wires. They are affected by age, but if it is not misfiring, they're good. If it ain't broke, don't fix it.