This is long so bare with me, will try to shorten and be blunt


When going to work in morning, van drove great, until I hit a steep hill... Rpms were shooting high, but could get over 20mph....soon as I hit flat land, drove normal again

Drove fine after work. Until.... Same situation but in flat normal street, when I would accelerate rpms would go up, but I barely moved.. If I had to stop, then accelerate, it would jerk hard before it took off a little

One thing I noticed when I pulled over and put it in park, you couldnt feel it "kick in" When you shifted to anything. . Drive, Rev. Etc

Shut van off.. . Soon as I started it back up, "kicked into gear" And drove fine for like 10 minutes then same scenario

Got code for too lean bank 1 and fuel rail sensor. . But now mysteriously the lean code disappeared


I have some ideas what it might be, intake gaskets.. . Or air leak somewhere, or just that fuel rail sensor



Anyone else ever had this problem?. . .or know what direction to look in


Thanx in advance

 

Have you checked the trans fluid level and condition?

 

The fluid level was normal and color looked fine.... Was a "little" chunky though