Vent Control
Trying to track down a vacuum leak that is causing the vents to default to the defrost position. I have good vacuum inside the engine compartment. I am ready to move onto the next step but need some...
Forum Discussion
Does this happen ALL the time......or just when the engine is pulling hard ??
My Ford V10 would lose enough vacuum when pulling a hill to do that; then went back to normal once over the hill. It started doing that after applying a "custom tune" and stopped doing it after I went back to the stock tune.
If it is a full time problem, the trouble can be at or close to the controls too.
Mentioning what kind of engine you are working with might help.
My Ford V10 would lose enough vacuum when pulling a hill to do that; then went back to normal once over the hill. It started doing that after applying a "custom tune" and stopped doing it after I went back to the stock tune.
If it is a full time problem, the trouble can be at or close to the controls too.
Mentioning what kind of engine you are working with might help.
