| From | Message |
joe
Dodge Dakota
JOIN HERE
11/26/2004
19:43:32
|
 Subject: A/C
IP: Logged
Message:
yepp i know and it's winter here
but no joke, ok anyway
i pulled the clutch fan today
put in a black magic
after i'm done i start it up to warm
and i hear a loud click every once in awhile
and i notice its the AC compressor keeps
kicking in. never had a prob. with it
and it will freeze you out in summer.
i unplugged it for now
but what will cause it?
...............thanks in advance guys
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Bob Lincoln
Dodge Dakota
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11/26/2004
22:02:42
|  RE: A/C
IP: Logged
Message:
If you have your defroster on, it is designed to run the A/C compressor. Turn the climate controls to Heat instead of Defrost.
If the compressor still comes on, you are lacking a diode to block the power feed back from the fan relay to the A/C compressor.
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joe
Dodge Dakota
JOIN HERE
11/27/2004
09:35:54
|  RE: A/C
IP: Logged
Message:
Hi Bob
(first thanks for the reply)
ok plugged it back in and had the setting to heat (floor)
and before long it started again
the cluthes on the compressor kick in and run for 15-20 seconds and just keeps cycleing through the process.
possibly a relay switch or something?
though past experiance is when they go bad they quit all together.
i'm stummped and
all the help is greatly appreciated
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Bob Lincoln
Dodge Dakota
JOIN HERE
11/27/2004
18:14:57
| RE: A/C
IP: Logged
Message:
OK, sounds like you're missing a diode in this new setup. In newer cars with dual electric fans, the A/C and one of the cooling fans are set to run together, so that when the A/C is on, a fan maximizes cooling of the condenser for better efficiency. The other fan only switches on when the coolant gets to a certain temperature.
For older vehicles, or those with single electric fans, there is a diode in the wiring to prevent the A/C from coming on when the fan comes on, and vice versa. It sounds like you're missing that diode. I don't have a diagram to show you where to place it, but maybe someone here can post one or describe it better.
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