I have a Nelson tune, I had the line pressure for the shift points increased in my first couple tunes...

After a retune, which line pressure was returned to stock, my 2000 Silverado still jerks hard through all the gears...

I spoke with someone who advised it could be the Line Pressue solenoid in the tranny. I called the dealer and they had a hard time figuring out what part I needed...

I just wanted to see if anyone has delt with this issue before or has any advice at all...

Thanks everyone,

Matt

 

Force motor,it controls pressure.Did you try and re-set the PCM clear it?My experience is if it was put back to stock there would be no doubt it was,should feel like stock.

 

I left the battery and PCM unplugged overnight, if that doesn't reset it, then I don't know what does...

Any other ideas??

 

I thought the EPC was teh silenoid that controlled LP.

 

same thing

 

So what's the name of the part I need to check/replace?

Thanks,

 

http://www.transmissionpartsusa.com/...-00034605u.htm

 

Thanks Gonzo!

Is the part easy to get to & replace? Just drop the pan?

 

You need to make sure this is what you need,it is easy once you get the pan off.I might lean towards an OEM part.

 

Get rid of PWM LP. Give the PCM very little chance to control anything in the tranny. Other than shift points. The PCM's playing around with LP is what starves clutch packs of fluid, frying them. Go vacuum modulated. Its easy and TransGo makes a kit for it. Mine is vac modulated and shifts killer.