[biketucson]

i have a 99 blazer, and i have the same problem. infact my tran failed and i had to repair it. it started with the hard shifting. my enderstanding is that the oil cooling system is undersized for this cars and that leads to over heating. usually after driving for a while on a warm day 80F or sitting in trafic it will start doing that and that how you know that you got oil over heating issues. trani oil cooler is a good idea in this case. now i am looking on how to install one