I have a 1994 Trans Am GT with 25K miles. I allready had the oil changed about a month ago. I have NEVER Flushed my automatic Tranny, coolant system, or my rear end. I also have never ran any type of fuel system cleaner through it (the previous owner might have.) I have a 3 year old fuel filter, and a 1 year old PCV.

Here is my check list, tell me if there is anything I can add to this, or if I am missing something.
PCV
Fuel filter
Transmission flush (with gasket and filter)
Coolant flush (new thermo and water wetter, which was free!)
Power stearing flush.
K&N cleaning
Differential fluid (with slip additive)
Butterfly cleaner (what is a good brand?)
Injector cleaner (chevron)

Anything else I could be missing? The tires can't be rotated, and I have never checked the brakes, but they don't squeak at all.

 

Brake fluid flush
Plugs
Wires
Coil

 

O2's

 

I forgot to mention I have new plugs and wires allread for my header install. Any links on how to do a brake fluid flush? How do you check the O2's, just visually?

 

clean your throttle body. that might help if it's never been cleaned.

 

if the O2's have never been changed just change them

 

O2s and coil @ 25K. Am I missing something here?

 

I was thinking the same thing, why would they go bad so early? Also, I allready had TB cleaning on the list.

 

yeah....but theyre still 11 years old

 

sometimes leaving a car sitting is worse than driving it In my personal opionion i would not change the O2's unless you know they are bad.....they should still be good IMO.