Hi everyone, hope this is the right place for this.

I have a 98 Passport, which I’m told is the same as a Rodeo. When it’s in drive and I take off from a stop, it’s very sluggish. 0-30 is about 30 seconds. When I put it in low and go through the gears manually, everything seems fine. I‘m trying to make sure I spend the right money to fix it but not sure where to start. Any help is greatly appreciated.

thank you.