Power antenna does not go all the way up, does not power retract
Antenna mast replaced, would not go up or down, could not manually put all the way down. Disassembled power unit and removed broken tail from previous antenna. Now antenna goes partway up but does not retract. Can be pushed all the way down.
Re: power antenna does not go all the way up, does not...
Does the motor continue to run even though the mast doesn't retract? Is there a loud 'click - click - click" as it tries to retract and extend or more of a chattering noise? Did you clean and lubricate the spool into which the toothed belt goes when the antenna retracts? Use an all weather grease (white lithium). Did you clean the teeth on the gear that drives the belt? There is a small metal guide where the belt meets the drive gear, sometime this wears and allows the belt to slip on the gear. Pull the giude straight out, then rotate it 180 degress and reinstall.
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What kind of car is it? If it is a fixed antenna you just unscrew the old one and screw on the new one. If it is an automatic antenna, you can buy either the motor or the mast. Assuming you just need to replace the mast, it comes with the plastic piece with the teeth on it. You need to remove the old broken plastic piece from the antenna motor. You might need to disassemble the antenna motor from the car to get enough of the plastic to grab onto with pliers. While you are pulling on it have someone turn on the radio to activate the antenna up motion and pull the old plastic piece completely out. With the old plastic runner out, the motor installed on the car, and the radio on, run the new plastic runner first through the doughnut screw that holds the mast to the car. Then cram the new plastic runner as far as you can into the hole that leads to the antenna motor. Then hold the very end of the mast (the tip), align the base to the opening as best you can and have someone turn off the radio to activate the down antenna motion. It goes quick so don't have your fingers where they can get pinched as the motor sucks in the plastic and the mast down into the hole. With the mast retracted, tighten the doughnut screw to that the mast won't flop out when you turn the radio back on.
You could try searching for a used antenna on www.car-part.com.
Removing the antenna mast is easy once the collar nut is removed. Try tapping a screwdriver in one of the two slots with a hammer counter-clockwise, gently, until it loosens. Be careful not to chisel your painted fender. Once the nut is off, you can manually pull it out or power it out with the antenna switch with a helper holding the antenna mast so it doesn't flop onto your fender.
To install it,have a helper hold the 'down' button and feed the white nylon end into the hole. If it doesn't catch, rotate the nylon part clockwise in the hole and hold downward pressure on it until the motor gear catches the nylon piece. After the entire antenna has retracted into the fender, replace the nut.
Cruiser/4Runner 1989-1996 Antenna - REMOVAL & INSTALLATION
antenna mast is the type where you can unscrew the mast from the fender,
simply do so with a pair of pliers. Most damaged antennas are simply
the result of a truck wash or similar mishap, in which the mast is bent.
Disconnect the antenna cable at the radio by pulling it straight
out of the set. Depending on access, this may require loosening the
radio and pulling it out of the dash.
Working under the instrument panel, disengage the cable from its
On some models, it may be necessary to remove the instrument panel
pad to get at the cable.
Outside, unsnap the cap from the antenna base.
Remove the screw(s) and lift off the antenna, pulling the cable
with it, carefully.
When reinstalling, make certain the antenna mount area is clean
and free of rust and dirt. The antenna must make a proper ground contact
through its base to work properly.
Install the screws and route the cable into the cab. Make certain
the cable is retained in the clips, etc.
Connect the cable to the radio; reinstall the radio if it was
Power Antenna Mast
The power antenna system contains a relay. If the power antenna is
inoperative, the relay is the first place to look. The actual motor
The power antenna mast is replaceable on the Pick-Up and
4Runners. If the mast is damaged or broken, proceed as follows:
Perform this repair with the battery cables connected.
Turn the ignition switch to the
Remove the antenna nut.
If equipped with a CD player, press the AM and FM
buttons on the receiver and simultaneously turn the ignition switch to
For non-CD player units, press the AM button and
simultaneously turn the ignition switch to
The antenna motor will run, unwinding the mast from the
spool. have an assistant guide the mast so it doesn't fall and damage
the bodywork. When fully extended, the mast will be released. Remove it,
and leave the ignition in the
Insert the new cable so that the teeth face the rear of the
vehicle. Feed the cable into the motor until the cable reaches the
bottom, about 12 in. (30cm).
Have an assistant ready and prepared to guide the
cable. Turn the ignition switch to
. The motor will run, winding the cable onto the spool
and drawing the antenna down into the mount.
If the cable does not wind, twist the cable at the top of the
housing; the part at the bottom may have turned while being pushed down
Once wound onto the spool, install the antenna nut even if the
antenna is not fully retracted. Test the antenna elevation and
retraction; the mast will eventually retract fully.
If your antenna is of the electric type, mounted into the vehicle's body, then it is more common to replace the MAST only.
This is done by:
- loosen & remove the upper locking ring (between antenna & vehicle body),
- turn radio to ON. This will unwind the antenna & cable fully (if cable has teeth, note direction which cable is facing).
- feed replacement mast cable into cavity (ensure cable is facing same way as when it was removed) until cable stops feeding, and hold in position.
- turn radio power off. Cable should grab & begin to retract. Guide the new mast into position. As cable feeds in, the mast will follow and retract to its closed position.
- secure upper ring
"if the above information has helped you in any way, please rate this solution"
Remove rear retaining screws of RH front wheel splash shield for access to antenna lower retaining bolt.
Remove lower retaining bolt.
Remove radio antenna nut (18865) from top of motor tube and remove electric antenna through fender/splash shield access.
Disconnect signal cable and motor wire connector(s).
To install, reverse Removal procedure.
Tighten top radio antenna nut to 6-8 Nm (54-70 lb-in).
Tighten lower electric antenna retaining bolt to 5.8-7.8 Nm (51-69 lb-in).
Check operation of electric antenna and radio chassis .
Automatic Electric Antenna
NOTE: A power antenna mast which is bent or broken can be replaced without replacing the motor and tube assembly. Removal
Remove radio antenna nut (18865) and radio antenna stanchion (18919) .
Loosen retaining nut inside tube using 14 mm (9/16 inch) socket, and slide nut part-way up mast.
Raise antenna to run plastic drive wire at bottom of mast out of motor. Note direction of teeth on plastic drive wire.
Saw off damaged portion of antenna mast. Remove burrs from mast and slide nut and contact tube off stationary tube.
With the teeth on the plastic drive wire facing toward motor on antenna, push end of plastic drive wire of replacement mast assembly down into tube. Push it around curve at bottom of tube until end enters drive mechanism.
Run motor down while pushing on plastic drive wire until about 305 mm (12 inch) of wire has been drawn into the tube. Stop motor and insert bottom of antenna mast into tube. Lower mast.
Slide contact tube and radio antenna nut down antenna mast. Tighten nut to 0.45 Nm (4 lb-in).
Raise and lower antenna several times to ensure proper operation.
Give these instructions a shot. Might be too generic but might be enough to get you going.
Removing Original Antenna
Activate the antenna switch to the up position.
Using the wrench or needle-nose pliers, loosen and remove the original retaining nut on the base of the antenna mast.
Gain access to the underside of the area where the antenna is located.
Remove the bracket or brace that is below the hole and holding the antenna in place.
Remove the mast.
Find the motor that controls the antenna mast. Generally, power antennas will have a constant 12-volt lead and a ground lead. The ground lead will be grounded to the panel next to the motor.
Remove the ground lead from the panel.
Pull out the antenna coaxial cable.
Unplug the coaxial from the extension coaxial cable.
Remove the original antenna coaxial cable. Note the route the cable follows.
Installing the New Power Antenna
Inspect the fender area where the antenna mast will be mounted for rust.
Clean the area before installing the new antenna.
Plug the new antenna coaxial cable to the extension coaxial cable. (On some General Motors and Ford cars you may need an adapter to mate the 2 cables together. Car audio retail stores sell such an adapter.)
Plug the new antenna's coaxial cable into the radio's chassis antenna jack if there is no extension coaxial cable. Tie or tape the string you put on the extension cable to the new antenna coaxial cable. This assures that the 2 cables stay together as you route them to the antenna mount in the fender.
Connect the power lead of the antenna to the power antenna lead on the radio.
Connect the 12-volt constant lead to the antenna to a 12-volt source or to the ignition switch.
Direct the new antenna cable via the same route followed by the original antenna cable on up to the hole in the fender in which the mast will be mounted.
Ground the ground lead from the motor to a clean metal surface on the metal panel near the mount.
Insert the mast into the hole. Face the serrated side of the plastic cable on the bottom of the mast toward the motor side. The plastic cable can be inserted freely to about 12 inches and will stop.
Turn on antenna switch to down position until the plastic cable goes down and catches into the gear mechanism of the drum housing. If the plastic cable does not gear into the mechanism, twist the cable slightly until the cable contacts into the gear mechanism while the motor is in operation.
Stop the motor after the cable goes into the housing 12 to 25 inches.
Secure the bracket or strap to the bottom of the antenna mast and to the metal fender.
Replace the retainer nut to the base of the antenna mast and secure tightly.
Replace the panel that covers the antenna mount area.
The most likely cause is your antennae mast is broken or has stripped its teeth. The mast is sold separately and contains the snake-like gear. The motor must be removed through the right inner fender well. You may have to open up the gear in the motor to get out the broken piece of the snake-like gear,
Fault in the retractor assy. Is the mast bent. If it is gently try to straighten best possible lube with silicone spray. With someone turn off the radio , try manually putting antenna down with the palm of your hand squezzed around mast and forcing. Do the same going up, pull by the end tip ,