Question about 1991 Mazda RX-7

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Power aerial stuck halfway

Radio aerial is stuck halfway up, doesn't go down or extend fully, drive motor sounds like it's running

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Yor motor can be running fine, but the gear inside the unit is most likley plastic and may be broken. if your handy with broken things, you could tear it apart and see if the gear is broken, but I would go online and see if parts are availible. You can also get one from the junkyard or off ebay.

Posted on May 27, 2009

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Radio power comes , antenna does not extend as it use to and no sound at all


Listen to the aerial motor to hear if it,s running, if it is then the plastic toothed strip that pushes up the aerial may have stripped it,s teeth, quite common. Replacement masts available on eBay.

Mar 04, 2014 | 1991 Jaguar XJ6

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Automatic antenna on my '97 500sl is not being driven up and down. Antenna motor runs when radio turned on and off. Antenna slides up and down manually very easily.


Mercedes preferred supplier of aerial masts is Hirschmann. There is a connector to the top of the box a coax aerial connection to the mast root, an earth lead strap and a bolted bracket to the base. The aerial mast exits through the car skin in a rubber fitted sleeve. You say that you can hear the motor running but that the mast refuses to emerge. The beauty of Hirschmann is that their motor drive antenna assemblies are readily disassembled (and reassembled). You will need to take the mast assembly out of the vehicle; disconnect the wiring plug socket, remove the bracket bolt, earth strap and unscrew the coax cable connector. Pull the mast firmly down and out of the body work sleeve. The outer aerial mast is driven up by a toothed plastic flexible inner rod normally stored in a coil within the motor assembly. Remove the torx screw in the middle of the rounded end and separate the two halves. At the top is the electric motor set horizontally which drives a rubber belt to a helical drive immediately below it lying parallel. If this belt is broken this would give rise to the motor running but not engaging . The helical drive engages with the edge of the storage drum feeding out and retrieving the coiled rod to raise and lower the antenna. If the helical drive or the drum edge has missing teeth then the aerial cannot function. All these components can be be bought from Hirschmann spares or through your Mercedes dealer.

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Passenger side power window halfway down


You will need to remove your interior trim panel and check your window regulator for damage and for power going to your window motor. If your regulator is ok and you have power going to the motor then you have a bad window motor. If there is no power at the motor then you will need to check the circuit for the problem ie. blown fuses, broken wiring, bad switch. It is very commen for the motors to go bad. Good luck.

Nov 03, 2009 | 1999 Dodge Durango

2 Answers

Antenna motor runs while the radio is on or off. The antenna is stuck in the extended position. When the car is shut off the antenna motor continues to run to retract the antenna, but it doesn't go


You need to pull the fuse for the antenna or just unplug it. It has a fairly ridgid plastic wire that pushes the antenna up and down. Works fine until the wire breaks then it rolls up (antenna down) but it never increases resistance because the antenna never comes down , it's like a fishing reel when the lure breaks off, so the motor thinks that the antenna is still coming down and it will run and run and run trying to do it's job. Your lucky it stuck up and not down. If you want your antenna to go up and down again you'll have to buy and install a new one.

Jun 02, 2009 | 1992 Jeep Cherokee Limited

1 Answer

I have just bought a lovely mazda 323F (s reg) however the electric aerial won't go up even though the motor (and the stereo) appears to be working. I have put some WD40 on it, is there anything else I can...


Does the antenna motor make any sound when you turn on the radio? (you should be able to hear it when it goes up and down. If you hear nothing, the antenna motor should be checked, as it may have burned out. If you hear something, the gears have probably stripped, so the motor runs, but won't extend and retract the antenna. countrycurt0

Oct 08, 2008 | Mazda 323 Cars & Trucks

1 Answer

My aerial is stuck on my XK8 - it goes up oK but not fully down?


If it makes a clicking sound when going up or if it is bent the aerial mast will need to be replaced, if there is no noise and it seams to work normally and just gets stuck then it needs cleaning. You can use wd40 and a cloth, with the aerial up, wipe upward (upward only, wiping down will push dirt into the mast and make it worse) spray the wd on the mast and the cloth and wipe upward, sent it down and repeat 2-3 times.

JPTCAT

Aug 14, 2008 | 1998 Jaguar XK8

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