Waves cannot travel through vacuum as they require a medium like air, water, or solids to propagate. In a vacuum, there is no medium for waves to interact with, so they cannot travel.
A vacuum flask stops conduction by creating a vacuum layer between its inner and outer walls. Since air is a poor conductor of heat, the absence of air molecules inside the flask prevents heat transfer by conduction, helping to maintain the temperature of the contents for longer periods of time.
check for bad vaacum line or manifold leak!! I replaced gaskets on my 2000 v6 and it runs fine.also check the plug wires are correct!!
AnswerUse carb cleaner, with the engine running spray around the intake manifold if the engine RPM changes then you know the leak is there. Also spray all the vacuum lines in the same manner again if the RPM changes you found your leak. I have used this method for over 30 years.