How to replace the A/C compressor and belt?

2001 MERCURY GRAND MARQUIS

340,000 MILES • 4.6L • V8 • AUTOMATIC

BRANDYG322

MEMBER
1 POST

Does someone know how to replace the A/C compressor on a 01 grand Marquis ls 4.6L and then replace the belt afterwards? I just want to make sure I'm doing it the right way and don't mess anything up.

Jan 15, 2024 at 1:41 PM

STRAILER

✓Experienced Mechanic
55,500 POSTS

Sure, we can help you with that. Did the compressor fail and lose its charge? If so then you don't need to remove the refrigerant but just in case this video can help. I would start by disconnecting the battery.

https://youtu.be/4EqdrBVb0sY?si=g8tKlhKOOU5qqLzh

This guide will help walk you through the repair and I have included how to remove the drive belt and change out the compressor on your car in the images below:

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Make sure you use new O ring seals this will help seal the system correctly. Check out the images (below). Let us know if you need anything else.

Images (Click to enlarge)