Transmission seems to shift fine but my 1997 Lariat F150 5.4 engine is setting a code occasionally. When I check the code it is always 0755 Solenoid B. Any ideas on what the heck is going on. DO I need to change fluid, a solenoid, or buy another truck. I bought it new and I have 105k on it so I am due for some problems. Any help would be appreciated.