Sounds like the same problem I'm having. But mines from 1st to second if I shift manually it works fine but I have to basically launch it in first and hit second
I have a 93 sport 4wd lift tires.....anyways I've been having problems with the transmission....I thought it would have been the cooler considering it's in the radiator and mine was nearly stopped completely up. So I put a new radiator in it. No luck. This is what it's doing
On a cold start it...