so i have a 1981 GL wagon that i did a little rally driving with last weekend. prior to this weekend it idled super smooth now it wont idle at all. it runs great when the gas is on or i have the idle adjust screw turned way up

 

im fairly sure its a vaccume leak so i messed around with some of the lines and it ran good again during my next drive. its back to not idling again. any ideas for how to find a leak ?

Spray around the engine bay with something flammable. Carb cleaner, degreaser, etc. When the engine changes pitch you have found a leak.

 

GD

ok sounds like a good idea, ill have to try that later today.