2010 Journey SXT-3.6-45K miles
If you only use 1/4 to 1/2 throttle it shifts fine. A little hard but it will shift. However, if you give it 3/4 to full throttle while taking off from a stop, it will redline and won't shift. If you let off the throttle a bit and get it to shift, then get back in it fullly, it won't shift again. Could this be caused by the solenoid pack on the bottom of the transmission or? Any help will be much appreciated.
Fredneck