Engine/Transmission (1998.5 - 2002) transmission Line Pressure?

[MPH131]

I recently changed my fluid and filter. While I had the pan down I wanted to increase my line pressure to limit slippage until I save for an upgraded trans that will handle my present and future power. I researched and found a link with directions and pictures of what I thought was the correct adjustment screw. I used a 3/16 allen wrench(modified to fit between the case and screw) I turned the screw 3 turns counter clockwise. I read a post that said it was approx. 3 psi. per turn. I buttoned every thing up,replaced the fluid with ATF+4, and went for a ride. The trans at WOT won't make the 1-2 upshift until I lift. The screw I adjusted was a 3/16 allen that went through a steel plate and had a spring on the other side. Did I screw something up? I'm gonna drop the pan again this weekend to straiten it out hopefully. Any help or insight would be greatly appreciated. I am running my comp. on 5-5 most of the time.

 

[thejeepdude]

Can you post a link to the directions you used?



Thanks.

 

[MPH131]

I think it was on the DTT site. I forget I looked it up a while ago. I drew myself a diagram and worked off that. Last weekend was the 1st warm day I was able to work on the truck. I looked it up in the fall.

 

[fox]

Raising the line pressure always effects the shift points. Some people notice some don't.

Some trucks start doing this and some don't.

Try lower pressure or get it to a performance shop that knows what needs to be done now. You may also be at the limits of a limp home condition.

It is a simple fix but I won't go thru it here, PM me.

Also a transgo kit is one option.