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Summary: Car jacks are made to lift cars and using one to hold a car up is discouraged. Watch an automotive service excellence (ASE) certified master mechanic jack up a car in this free video on car maintenance.
Mark Blocker is a semi-retired ASE-certified master mechanic with more than 20 years of automotive experience. He has been a state-certified emissions specialist for more than 15 years...read more
"In this segment we're going to cover jacking the vehicle. First thing we need to do is make sure the vehicle is in park, the parking brake's set and we are on a flat level surface and what we're going to do, I'm just going to briefly, I'll just go ahead and install the jack. If you have any questions concerning the use of either the screw type jack or the floor jack, all of that information is available in one of our other training videos. We covered extensively the use of both jacks in our replacing brake pads on and 89 Acura series. So even though I'm confident that it's, it's always a good practice and habit to get into, just go ahead and make sure the vehicle is in park. Key's in the off position and the parking brake is set. Basically we just want to place the jack underneath this lower lip of the body panel there, where it's designed to support the weight and then we're just going to screw it up and lift the car up so we can remove the wheel. I'm going to use a cordless screwdriver, just to kind of expedite things a little bit. So that'll cover jacking the vehicle and in our next segment we'll cover installing the loads carrying device or jack stand and removing the wheel."
eHow Article: How Use a Car Jack