My 2004 Silverado has been really acting up. 2-3 gear slip at WOT even when I accelerate slow it slips into 3rd. I changed my tranny fluid and filter and it made no difference. My engine light hasn't even come on yet witch is weird. Just wondering if anyone out there knows what's going on. I don't know much about the 4L60E

 

Heres a pic from couple weeks ago i should of took a picture when i had the filter off. It's not a good picture but can anyone see if there is a problem in there ?