93 4x4 4.3 W running problem

I just replaced my upper manifold gasket on the because of a leak. Why I had the manifold off I changed the gasket on the egr valve. I also changed the coolent thermastate and gasket. I checked the vacume hose by the distrib., the other one by under the tps, the pcv and the brake booster all are on. The problem I had was check engine light code 35. I found the leak at manifold and fixed. Now I have differnt problem no codes now runs perfect until operating temp and when driving won't shift. Drives great until normal temp.

What year? engine?

Please give us all the information.

What year? engine?

Please give us all the information.


Your screwing with me arn't you its in the subject field.

Do you have the vacuum or computer controlled transmission.

Do you have the vacuum or computer controlled transmission.

how would I find that out

how would I find that out

I noticed that it doesn't have a kick down cable does that help

You must have a computer controlled transmission.

You have conflicting points in your first post.

Does it shift or not properly when up to temperature?