AC clicking?
Senior User
Joined: Dec 2001
Posts: 111
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From: Chico USA
AC clicking?
When I turn on my AC in my 90 Bronco it makes a clicking sound every 4 seconds or so and just blows warm air. I haven't been able to identify where exactly the sound is coming from, but I was wondering if anyone has had similar probs or knows what it is. Thanks for any response.
Alex
Alex
New User
Joined: Jan 2008
Posts: 0
Likes: 24
AC clicking?
Sounds like normal cycling to me.
Do you have auto air or manual air?
Manual air has the dial for setting the temperature.
[b][i][font color=red]Dennis[/font][i][b]
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Do you have auto air or manual air?
Manual air has the dial for setting the temperature.
[b][i][font color=red]Dennis[/font][i][b]
[font color=red]Calgary,Alberta,Canada[/font]
http://www.clubfte.com/users/mil1ion/Minimorleytruck.JPG
http://www.clubfte.com/users/mil1ion/FordTruckCodes.html
[font color=red]If New Ford Parts Is What You're Cravin',
Then Buy Them HERE,At Motorhaven!
[/font]
http://www.clubfte.com/users/mil1ion/Mil1ion.html
[font color =red] Please Don't Ask Me Any Tough Questions,
"I'm Saving My Memory For When I Develop Alzheimer's" [/font]
[font color=blue]78 F-150 429CJ,Silver,Explorer Pkg.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon [/font]
Logistics Pro
Joined: Jan 2002
Posts: 4,907
Likes: 39
From: suburban atlanta
AC clicking?
Start engine. Turn on A/C. Open hood. Observe 'front' of A/C compressor. If the clicking coincides with the A/C clutch engagement and disengagement, there are 2 possible things to cause that.
1)bad LPCO mounted in the top of the accumulator. 2)low refrigerant charge. To test the LPCO, disconnect it from the accum, and jumper across the terminals. This will engage the compressor clutch. DO NOT LEAVE IT JUMPERED for very long. If low on refrigerant, jumpering will run the compressor without proper oil flow.
If this makes the air cool, replace the switch.
More likely, you are low on R12/R134a. Look for dirty/oily spring lock connnections or at the front seal of the compressor. Do NOT add refrigerant without using gauges, unless you like cleaning things out of your eyeballs.
tom
1)bad LPCO mounted in the top of the accumulator. 2)low refrigerant charge. To test the LPCO, disconnect it from the accum, and jumper across the terminals. This will engage the compressor clutch. DO NOT LEAVE IT JUMPERED for very long. If low on refrigerant, jumpering will run the compressor without proper oil flow.
If this makes the air cool, replace the switch.
More likely, you are low on R12/R134a. Look for dirty/oily spring lock connnections or at the front seal of the compressor. Do NOT add refrigerant without using gauges, unless you like cleaning things out of your eyeballs.
tom
