Hey guys... sometimes when i start my car it idles at like 3000. Why would it do this? Also sometimes when i try to switch from 3rd to 4th gear it will not go in or grinds(when clutch is all the way down). The other day everytime i would stop and leave it in gear(with clutch in of course) it would idle REALLY low in first gear or if i left it in second it would stall. What would cause these problems? Thanks for the help.

-Mike

 

I have a 93