View Full Version : quick 710 cap question

02-11-2008, 05:57 PM
when my car is running and I remove the 710 cap (oil cap[:D]) the idle changes and the car seems to be sucking in air when i put my hand over the oppening. is that normal? my brothers vr dosnt do that. whats the deal? thanks for your help

02-11-2008, 06:43 PM
thats called vacuum.