I bought my truck from a Chevy used dealer. They gave me a 3/3000 powertrain warranty. I want to make sure everything is in working order and no issues. What should I do? Everything seems good but want to get second opinion before my warranty expires? Oil sample? Where do I take it too? Anything else? Thanks

 

Look up Blackstone on the web. They will send you a bottle for your oil analysis. Good idea.

 

Thinking of taking it to an independent shop also. What should I have them check? I'm at 78k mi.

 

Anyone?

 

what year truck, could be anything from lift pump to injectors if we dont know the year

 

04, 325hp motor

 

FYI, the 325HP motor makes your truck a 4.5 rather than a 2004. Its pertinent to the help the site can provide.

 

And being an 04.5 you need to know if the lift pump has been changed from the filter housing to the in-tank model or not as they frequently fail if on the fuel filter. The replacement in-tank seems to work much more dependable.