this thermo valve is located if your looking at the fron of engine it is located on the left corner in the back and it looks like a thick tube then has two stif tubes coming off for manual which is mine, but this guy i bought from had three coming off which is for an automatic so i dont get it, the jumping im talking about is you go up to 2000 then it stalls goes to 1500 then back up to 2000 realy quick kind like hittin the gas rapidly in 1st it starts like jumping the car foward and back, does that help at all and this only happens when its hotter that 90 with humidity, and it is called a water thermo valve i looked it up and theres a picture of a diagraphm however you spell that but theres one of an 89 with one in it but the 86 diagraphm doesnt have one so i guess ill just put a two hose and try it but there are three hoses and suppost to be 2 for manual two go to like an air in and out and the other goes to some stupid filter

 

The stuff you are talking about is just for cold start idle speed and secondary cold engine throttles. There are many threads here referring to "thermo-wax" and "TB mod" or "throttle body mod".

 

whats that mean though how do i fix it?