The Ford Barn - View Single Post - Engine runs smoother with open vacuum line.

Oldgearz · 03-19-2021, 01:36 PM

Thanks to all. I know where to focus now. Alexiskai - Carburetor basics is great resource....THANKS. Redmodelt - great explanation. I had never really thought about what the effect is on fuel/air mix when vacuum line was open. I have an 85 big block Ford PU that reacts the exact opposite the A. That is, when a vacuum line is disconnected the engine runs real rough on idle. Guess that's why I was having problems figuring this out.

03-19-2021, 01:36 PM	#14
Oldgearz Senior Member Join Date: Aug 2020 Location: Sagle, Idaho Posts: 359	Re: Engine runs smoother with open vacuum line. Thanks to all. I know where to focus now. Alexiskai - Carburetor basics is great resource....THANKS. Redmodelt - great explanation. I had never really thought about what the effect is on fuel/air mix when vacuum line was open. I have an 85 big block Ford PU that reacts the exact opposite the A. That is, when a vacuum line is disconnected the engine runs real rough on idle. Guess that's why I was having problems figuring this out.