My trans shifts fine but when I get to a stopping point I have to down shift manually or it stays in 3rd & dont start back in 1st like its suppose to but as long as I do it manually it does fine ! But also I think I only have 2 & 3 no 1st or overdrive ! Please help if u have any info... And I can put it in 4hi or 4lo & the lights saying that its in 4wheel dive but its not engaging ! Got any ideas ? Thanks

 

Maybe this page can help ya.
https://blazerforum.com/forum/tech-a...ilation-37689/

 

*Moved to '2nd Gen Tech'*