97 s10 blazer tranny fluid is pink should i worry?

If it is an automatic transmission than it should be pink. Dexron tranny fluid is a pink to dark red fluid. If it changes from pink to orange or black, than you need to worry. Pink can also be bad. If your automatic transmission fluid is looking like a strawberry milkshake pink, then you may need to overhaul your tranny. The discoloration is due to water getting into the transmission, most of the time it is because there is a broken line where your tranny fluid goes to cool off in the radiator.