Looking to find TC clutch circuit solenoid - P0740
Hey everyone, new to the forum. I've recently gotten a P0740 code pop up on my truck. it has a 4.7L engine with the 545rfe tranny in it.
I had no transmission problems at all until early last week, when it threw the code on my morning commute. About mid-week the code cleared itself and reappeared this past Friday.
Over the weekend I changed the atf and both filters, then unhooked the battery to reset the code. It worked great Sunday and Monday, but this morning the code threw again and the tc will lock and unlock while driving. I do almost entirely highway driving and put about 150 kms on per day.
The only other symptom I'm experiencing is hard shifting between 1st and 2nd gear and 1st to stop (which I realize might be unrelated).
Anybody know the location of the solenoid on the tranny to try and test or clean it? I'm also wondering which other steps, if any, that I need to go through before knowing whether or not it's the torque converter itself
Thanks in advance