Air conditioner not working

HIMILEAGE

MEMBER
1999 FORD F-150
5.6L
V8
4WD
AUTOMATIC
190,000 MILES

Just turned the air on for the summer. Compressor seems to be cycling on and off on its own. Air flow is warm?

Thursday, May 11th, 2017 AT 3:33 PM

4 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,665 POSTS

Hello,

This is typical for the system to be a little low over the winter, here is a guide to help you get the problem fixed for cheap.

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

Please let us know what happens.

Cheers, Ken

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Thursday, April 15th, 2021 AT 2:44 PM

HIMILEAGE

MEMBER
3 POSTS

So I finally picked up some Freon and a gauge. The parts store clerk said to attach the hose/gauge to the system before puncturing the bottle in case I needed to return.
I did and started the truck and turned on the air. The gauge read charged. Once I started the motor and turned on the air the gauge dropped to the recharge position when the compressor kicked on and jumped to the charged position when the compressor stopped. Do I go ahead and attempt to insert Freon?

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Thursday, April 15th, 2021 AT 2:44 PM

HIMILEAGE

MEMBER
3 POSTS

Update! Ok I just took a chance and it took the entire can of Freon and it is working now! Yahoo! Now, the gauge reads from 30-50 in the green charged area. Currently it sits at a constant 30. Should I get some more Freon and bring the setting up to at least the 40+ range?

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Thursday, April 15th, 2021 AT 2:44 PM

KEN L

MASTER CERTIFIED MECHANIC
47,665 POSTS

Hello,

I would let it be if the system is cold, you don't want to over charge it.

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

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Thursday, April 15th, 2021 AT 2:44 PM