A/C not working, fuse box diagram needed?

DAVENOOB

MEMBER
2005 FORD FIVE HUNDRED
3.0L
6 CYL
AUTOMATIC
150,000 MILES

I can't find a fuse diagram for my car listed above. The A/C has stopped blowing cold air completely. I refilled the freon about 2 months ago and it worked great and only driven a couple times. Yesterday there was no cool air, just hot. I topped off the Freon not much gone and still nothing. I'm hoping it's just a fuse but probably not. Any ideas for checking what problem could be? Thanks. Oh, yes, the fuse box diagrams for all fuses inside and out would be great.

Monday, September 2nd, 2024 AT 1:43 PM

4 Replies

KEN L

MASTER CERTIFIED MECHANIC
51,648 POSTS

It could be the compressor has gone bad, does the compressor clutch kick on when the system is on? Here is a video and a guide to help us fix the problem and I have included the fuse diagrams as well, in the images below.

https://youtu.be/4EqdrBVb0sY?si=XsQkEQQ0uTl28Hv7

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Here are the fuses locations as requested. Check out the images (below). Let us know how it goes.

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Monday, September 2nd, 2024 AT 5:40 PM

DAVENOOB

MEMBER
245 POSTS
2005 FORD FIVE HUNDRED
3.0L
V6
AUTOMATIC
160,000 MILES

I'm having issues with my A/C. This car is known for not having a great A/C system. It blows hot air strong the fans engage and there is freon in the system although it seems to be leaking a little. A few questions with the A/C on should there be a line that gets cold to the touch and which one if so? Can I get a diagram of the fuse box so I can check relays. Is there anything I can do to test other parts? Could this be the compressor? Or the condenser how can I check? Thanks

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Monday, September 2nd, 2024 AT 6:34 PM (Merged)

DAVENOOB

MEMBER
245 POSTS

Yes, the clutch does engage.

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Monday, September 2nd, 2024 AT 7:15 PM

KEN L

MASTER CERTIFIED MECHANIC
51,648 POSTS

Okay, if the clutch engages, please feel the low side tube coming out of the firewall to see if it is cold. If so, you may have a temperature blend door actuator that is not working, and if it is not cold, we will need a high side pressure reading to determine if the compressor is bad. Check out the images (below). Please let us know what happens.

Image (Click to make bigger)