So Fix it

Place a set of chocks behind the rear wheels, set the parking brake, and lift the front end of your car just enough that you can fit under it. Youll be using your floor jack to support the engine from underneath, and youll be in a precarious position if you place the engine out of reach of the jack.

Identify the engine mount the you want to replace. There are four: the top motor mounts on the driver- and passenger-side of the car, and the lower front and rear motor mounts. The fact that this chassis has four motor mounts greatly simplifies the replacement procedure since either the top two or the bottom two could hypothetically support the weight of the drivetrain.

Slide the floor jack under the engine, and place a piece of lumber on top of the jack pad to protect the oilpan. Bias the jack toward the mount that youll be replacing. In this instance, youre not so much supporting the engine as you are keeping it from moving while you remove the mount and after you remove it. Avoid the exhaust pipe and the suspension components, and bias the jack as close to the mount as possible; just make sure that you leave enough room to access the mount itself.

Remove the mounts through-bolt first. Remove the nut from the bolt, and try to tap it out with the end of your wrench. If it doesnt move, then apply a little bit of upward pressure with the jack to take some of the weight off the bolt. If it proves extremely difficult, spray the bolt with some penetrating lubricant, and turn the bolt head.

Spray the engine mount nuts with penetrating oil if necessary, and remove them. Pull the mount off. You may find it easier, particularly on the lower mounts, to remove the corresponding bracket, and remove the two as a unit. Once you have the mount off, installation is the reverse of removal. The only major differences are that you may need to adjust the height of the engine with the jack to aid in aligning the through-bolt holes, and that you may want to clean the bolt and stud threads with solvent and use a drop of medium (blue) threadlocker for peace of mind. See the torque specs below for nut and bolt torques.

Go to your Ford dealers parts department with your 1999 Expeditions VIN number, registration or title and your state issued ID.

Present your VIN number to the parts counterperson and request a new key for your 1999 Ford Expedition. The Parts Manager will need to verify you own the Expedition by matching your title or registration with your state issued ID (if the Parts Manager is not available, ask to see the Service Manager or Parts and Service Director). This is a safety measure incorporated by Ford Motor Company in 2007 to prevent thieves from requesting keys to your Ford vehicle.

Go to the service department with your new key and request to have the key programmed to your Expedition. You will have to have your Expedition present, so if you dont have any keys for it, youll need to tow it to the dealership.

Locate the VIN of your vehicle, which will be listed on both your registration and on your Camaros insurance card.

Go to your local Chevrolet dealerships Parts Department. To locate a dealership near you, visit the Chevrolet Locate A Dealer website, provided in the Resources section of this article.

Provide the representative with your government-issued photo identification, the vehicles registration and the VIN. The name on the photo identification must match the name on the registration to verify ownership of the vehicle. Once the ownership of the vehicle has been confirmed, and the specific vehicle has been located in their system, the dealer will cut new keys.