Good! A way I discovered to know if this is happening in your YF is to look at the gasket between the throttle body and the float bowl. If gas is getting by this junction, that gasket will look damp on the edge as gas will dribble down and saturate it. Image below for anyone interested.
Edit...two more images showing the path of vacuum to the diaphragm chamber and you can see why the gasket will be wet if this seal fails.
Last edited by Jon G; 06/17/20245:30 PM.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
