I have a 98.5 and my trans is acting up in wet weather ,when I come to a complete stop my speed odometer say I am going 10 mph and put it I park it goes to zero but If I touch the brake while it is in park it back to 10mph and when I start to move it fills like the trans Is slipping when Im moving the trans shifts fine this only happens when it rains I’m looking for any ideas what might be causing this