Product review (5 stars): You can replace the closing door cams for a Whirlpool Side-by-Side Refrigerator/Freezer yourself!
I have a Whirlpool Side-by-Side Refrigerator/Freezer, Model ED2YHGXLQ01. I kept finding the refrigerator door open slightly (~1/4") and thought it was people in a hurry & not bothering to shut the door completely. We made an effort to make sure the door was closed each time; however, I continued to find the door ajar, which caused the refrigerator temperature to be warmer than desired and led to spoiled milk. I also noticed that the top of the refrigerator door was ~ 1/4" lower than the freezer door. After doing an online search for this problem, I ascertained that I needed to replace the closing door cams on the refrigerator door. I vaguely recalled sweeping up some pieces of broken black plastic at some point and wondered where they'd come from. Its easier to replace the closing cams than one might think.

Remove everything from the shelves in the refrigerator door. Unplug the refrigerator. Remove the refrigerator door by first removing the 5/16" hex head screw that holds the white plastic cover over the top door hinge parts on the top of the refrigerator. Next, remove the three screws that secure the silver metal plate under the white plastic cover. Do not remove the center screw. Lift off the metal plate, which has a metal post pointing downward that inserts into a hole at the top right of the refrigerator. The door pivots around this metal post. Lay the refrigerator door on a flat surface like the ice chest that you put the food in from the refrigerator door.

The upper closing cam (P/N W2182179) is located *underneath* the refrigerator door at the bottom right. The black tubular part sticking out of the upper closing cam inserts into a hole at the bottom of the refrigerator door. There is a 5/16" hex head screw that goes through the hole in the flat part of the closing cam to attach it to the refrigerator door. Once you get the part, you'll be able to see that there are plastic "teeth" on the other side of the cam from the black tubular part. The side of the cam with the teeth face downward; these teeth will sit on the teeth of the lower closing cam. I found that there was no longer any upper closing cam on my refrigerator door--mystery of the broken plastic pieces solved. This also explained why the refrigerator door was lower than the freezer door.

The black plastic lower closing cam (P/N W10329686) is attached to a metal bracket at the bottom right of the refrigerator, just below the refrigerator door. The metal bracket is screwed onto the refrigerator frame (not the door). I did not need to remove this bracket since it was accessible by removing the refrigerator door. The hole in the lower closing cam with the teeth around it slips over the metal post sticking up from the metal bracket. (Teeth side facing up.) A 5/16" hex head screw goes through the plain hole in the cam without the "teeth" around it; this secures the lower closing cam to the metal bracket, which has two holes in it. The screw for the lower closing cam goes through the hole on the left of the bracket (when facing the refrigerator). I called Whirlpool to confirm which hole the screw goes into, but they couldn't provide the information. I found out what hole to use by studying how to videos on YouTube. While the lower closing cam wasn't broken, I went ahead and replaced it as well so the two closing cams were of the same age.

The how to videos recommended greasing the cams with silicone lubricant grease, which I didn't have. The rep at my local Home Depot found they didn't have any silicone lubricant grease in stock and said I could use WD-40 Silicone Spray instead. I already had some of this so I sprayed it on the cams. Unfortunately, the silicone spray did not provide enough lubrication to allow the teeth of the two cams to slide smoothly across each other as the refrigerator door opened and closed. The door made a loud clunking noise each time it was opened past 90 degrees. It sounded like something was about to break.

I didn't want to wait for an online order so I got some multi-purpose White Lithium Grease from the local hardware store. It was ~$5 for 8 oz which was the smallest size they had. I removed the refrigerator door again and squirted a big blob of white lithium grease on the teeth of the lower cam. After reattaching the door, I found that it opened and closed smoothly and quietly. Repair finally done!

How-to videos I found helpful on YouTube were:
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