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Old 08-05-2010, 06:36 PM
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a/c not working

hey, I have a 56 dodge truck with a 305. a/c, power brakes
ok so yesterday the a/c stopped blowing I checked the fusses and their all good, non blown. so my a/c is turned on through a toggle switch one blue wire and a red wire the blue wire goes connected to this, am assuming relay? do you think it could be the culprit? anybody know the name of it so I could get it at autozone. thanks


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Old 08-08-2010, 07:48 PM
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that is a gm high blower relay.(the silver one) I am assuming the fan quit working?
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Old 08-09-2010, 10:26 PM
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These recommendations depend actually on the height and size of the room the season and the activity taking place in the room.
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Old 08-11-2010, 08:11 PM
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replaced that relay today and still no a/c. the fuse is still good any other things I should check?
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Old 08-11-2010, 08:38 PM
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Quote:
Originally Posted by 56dodge
replaced that relay today and still no a/c. the fuse is still good any other things I should check?
The next step would be to check and see if you have power to the fan motor with the unit on. If you have 12v, I would suspect the blower motor. You could disconnect the blower motor from the relay and wire it direct to the battery to see if it works. If it don't work wired direct, it's the motor. Make sure all your grounds are good also. A bad ground will cause all sorts of problems.
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