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Old Feb 18, 2005 | 01:05 PM
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Could anybody tell me why my power antenna on my 79 goes up sometimes and other time it does not.
Thanks
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Old Feb 18, 2005 | 01:17 PM
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I would try checking the ground strap at the antenna. Then try checking the connections. It is possible that they are getting a little corroded.
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Old Feb 18, 2005 | 01:18 PM
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Most likely there is a connection loose somwhere or the motor is tired and needs to be replaced / rebuilt. I don't know what circuitry supplies the power to the antenna motor, I suppose this ciruitry could be bad but most likely it is one of the first two.

To check it out put your voltmeter on the leads of the motor, if it has power but doesn't move the motor is bad. If it isn't getting power when you think it should you have a loose connection somewhere, trace the wires back looking for loose connections or shorts.

Did you try to lube the antenna assembly maybe its just sticking?
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Old Feb 18, 2005 | 01:22 PM
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Ground plate, check for a good ground.

Opps too late.............
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Old Feb 18, 2005 | 02:04 PM
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Do these antennaes only go up with radio... or with all stereo power like a CD or a Cassette, etc.?

From stereos there's a blue wire that turns on amps, right?
Is it an orange wire for antennaes or does the antennae use the same wire as the external amp?

Last edited by superdad60; Feb 18, 2005 at 02:21 PM.
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Old Feb 18, 2005 | 02:18 PM
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Mine (81) only comes up when the sterio is turned on. Now if I leave it on and turn of key, it goes down, and will come up automically when I crank up.
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Old Feb 18, 2005 | 02:47 PM
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9 times out of 10 it is a loose ground somewhere.
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Old Feb 18, 2005 | 03:14 PM
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Originally Posted by Eddie 70
I would try checking the ground strap at the antenna. Then try checking the connections. It is possible that they are getting a little corroded.


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Old Feb 18, 2005 | 03:18 PM
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Thanks, thats what it was. It was a bad ground.
Thanks again
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