Originally Posted by banda
Hmmm. My new pumps don't run after I turn off the engine. Only when I start it. Hope that's not a problem.
Listen closely and they will come on for just a second or two when you turn off engine , must be @ operating temp.
My wifes 2014 rav4 has a vac pump that comes on with veh off - i hear it in the early A.m. when I go outside to get into my Tundra - just a low buzzing sound from the driver side under body. Its in here owners manual - normal . Emissions/charcoal canister.
Thanks for the info - I had mine replaced a few months after new in 2012.