Hey, I think I'll buy a new GP Solenoid. Will also try and advance the TTVA like Cerberusiam suggested. I posted some photos on FB. Will have to get Aubrey to look at them. Here's the thread on my trans problem: https://www.turbodieselregister.com/forums/5-9l-engine-transmissions-2003-2007/223810-48re-shift-problems.html