the online site for metra is www.metraonline.com The part number for the replacement mast is 44-PW22. Hope this site will help you find a dealer in your area. If you need more help, please ask.
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Remove the radiator grille opening panel reinforcement (8A284).
If equipped, remove the front wheel opening moulding.
Remove the pin-type retainer.
Remove the screws.
Remove the wheel opening moulding.
Remove the front fender splash shield (16103).
Remove the screws.
Remove the pin-type retainers.
Remove the front fender splash shield.
Remove the cowl grille.
On RH front fender, remove the antenna mast.
On RH front fender, remove the antenna base.
Remove the radio antenna base cap (18A927) by gently inserting a thin straight-edged screwdriver underneath the cap and carefully following inside the perimeter until both snaps are free.
Remove the screws.
Lift the antenna base.
Disconnect the radio antenna lead-in cable (18812) and remove the antenna base.
I have not owned a buick for years. However, the one I did have trouble with the power antenna motor was located directly under the antenna. It was in the rear fender housing. I have to remove the trunk lining on the side of the fender. It was mounted a bracket. It was easy to replace as it all comes as a complete assembly. Hope that helped
it wont come out the only way is to remove the unit from behind the fender and disasemble it i look at it this way if your going to remove it replace it they are not expensive hope this helps you bob
Unplug the harness to the ant.It will not go off,until you replace the whole ant.mass.The gear(plastic)are stripped out,and the motor can not sense that the any.is moving.
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 of the trunk 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.
Install new 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.
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 power antenna motor comes out thru the fender well.you have to remove the tire and rim,and loosen or remove the fender well.if the mast is just broke,you can replace it if the plastic gear drive is not broken inside.
You may have the tools, but you should pay particular attention to the warnings about the air bag. That module contains a very powerful explosive that can activate even with all power removed, and can present a very serious hazard during removal to get at the turn signal assembly. I strongly recommend either letting a pro do it, or at least get the GM service manual for the vehicle and follow the instructions very carefully.
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).
Installation
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
mast
Mast, Power
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.
Installation
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
Step 1
Activate the antenna switch to the up position.
Step 2
Using the wrench or needle-nose pliers, loosen and remove the original retaining nut on the base of the antenna mast.
Step 3
Gain access to the underside of the area where the antenna is located.
Step 4
Remove the bracket or brace that is below the hole and holding the antenna in place.
Step 5
Remove the mast.
Step 6
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.
Step 7
Remove the ground lead from the panel.
Step 8
Pull out the antenna coaxial cable.
Step 9
Unplug the coaxial from the extension coaxial cable.
Step 10
Remove the original antenna coaxial cable. Note the route the cable follows.
Installing the New Power Antenna
Step 1
Inspect the fender area where the antenna mast will be mounted for rust.
Step 2
Clean the area before installing the new antenna.
Step 3
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.)
Step 4
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.
Step 5
Connect the power lead of the antenna to the power antenna lead on the radio.
Step 6
Connect the 12-volt constant lead to the antenna to a 12-volt source or to the ignition switch.
Step 7
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.
Step 8
Ground the ground lead from the motor to a clean metal surface on the metal panel near the mount.
Step 9
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.
Step 10
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.
Step 11
Stop the motor after the cable goes into the housing 12 to 25 inches.
Step 12
Secure the bracket or strap to the bottom of the antenna mast and to the metal fender.
Step 13
Replace the retainer nut to the base of the antenna mast and secure tightly.
Step 14
Replace the panel that covers the antenna mount area.
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