typically do the 2005 dodge cummins have 100,000 mile warrentys? some guy mentioned it earlier....... Thank!

Yes the engine is covered for 100k miles. After your bumper to bumper warranty is up there is a $100 deductible. As long as you have no mods, you should be able to go to your dealer and get fixed. Be aware that DC will probably want to see maint records if you don't have the dealer do your work.