I think that most of the fluids and plugs are good in the 04s until 100000K. I just turned over 75000 miles on mine and was thinking about doing my own tune up alittle early. Ive done tune ups on older trucks, is it kinda the same thing? I havent replaced any fluids except the routine oil change and the coolant once. This is what I was thinking about changing.

Plugs - i dont have to replace the coil packs do I?
Fuel Filter
Tranny Fluid - does the tranny have a drain plug
Both differentials and xfer case fluid
Coolant again - I think the last time I changed it was @ 40000k, Ill probably have someone do this.

If anyone can think of anything else, please let me know. Thanks in advance for the input.

 

saw the title and thought $75,000 tune up lol

 

I would have probably changed the tranny fluid earlier. You have to pull the pan on the tranny but you should not have to replace the COPs. Be careful with the plugs wrt removing them.

 

What are the COPs? And, Im not sure if it was a typo but what does "wrt" mean? Oh, and also, when you remove the tranny pan, does that little plastic baffle come flying out at you from the dip stick? Thanks.

 

Search this forum long and hard, using "spark plugs" as your search reference before even thinking about removing them.

If improperly removed, a portion of the plug may break and stay stuck in the cylinder head, leaving you up poop creek without a paddle.

 

The COP is not short for citizen on patrol, but coil-over-plug design. As for wrt, that is short for with respect to. I cannot answer about the baffle as I have not changed mine yet. Quintin would be a good source for that.

 

KSpencer-
Thanks for clearing that up, Im not up to date on my acronyms. I found out that little baffle isnt a baffle, its a plug that is in the filler tube that pops out when the pan is filled. It just lays in the pan till you take it out. Someone here put up a pic of it.

 

OK, DO NOT ATTEMPT the sparkplugs yourself! Look for a dealer to do them. Long story with that. Just ask them who's responsible for the cost if the plugs break. Shop around when it comes to this, some will charge you if they break them. You will not need Coi Over Plugs. The tranny doesn't have a drain plug, and yes the tube stopper is in the bottom of the trans pan. Remove it. If you plan on keeping the truck, I bought the B&M deep trans pan from summit racing for about $110ish, it has a drain plug, cooling fins, and holds like another quart or two of fluid. Hope this helps a little.