Hi,
I have a 1997 Blazer Sport with a 4.3L. The transmission runs great in first and second gear, however as the time nears to shift to 3rd gear (about 45 MPH) it "slips" and acts as if it got shifted into neutral. The motor revs up but doesn't accelerate.
I am a computer programmer by trade and have written a program that sends/recieves any codes or live data to the vehicle, but I'm not sure what components I need to check to determine the problem. There are currently no trouble codes logged, but I have heard that some things like the trans solenoids can fail but not log any errors. Does anyone know of anything I need to monitor?
Thanks for the help in advance,
Ryan