my 93 rodeo about a month ago was reading low on tranny fluid and the check trans light came on. I put fluid in it and about a week ago it happened again, and then today. but today the fluid level is fine, but the rodeo don't want to go. If I shut it off and restart it in a few minutes everything is fine, then the transmission takes a crap again. someone told me it could be a clogged filter. Could this be right , or am I totally screwed?