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Trunk Latch

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Old 08-04-2006, 08:31 PM
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Trunk Latch

I just tried closing my trunk of my 91 Firebird, and the motor took it down, but not all the way, because a box was in the way. I took the box out from the inside of the car, and released the latch. Now it wont latch again. I might have shorted it out, but I dont know. Any suggestions? And sorry if this has been asked, I looked around on the forums.
Old 08-05-2006, 01:22 PM
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see if your latch is stuck closed. This happens on my driver door periodically. Normally is bounces back open and I have to manually reopen the catch.
Old 08-05-2006, 02:52 PM
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Alrighty, I know its not closed because I got it to latch, but its not water tight. So, Ive been calling around and asking for the part. Is there a way for me to test it? Because I cant seem to find the fuse for it, and I tried disconnecting it and plugging it back in, to no avail. Any more suggestions? Thanks for the help anyways Hotdogstand, I appreciate it.
Old 08-05-2006, 03:37 PM
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Car: 04 Silverado
Engine: 4.8
Transmission: auto
PM lonsal, he is the expert on this matter, he is also a MOD!
Old 08-05-2006, 04:39 PM
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Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
To solve the problem I first need to know which of the two styles of pull-down motor you have. Early 1991 model year used the metal frame, late 1991 used a different style with an injection molded tan colored plastic frame. I suspect yours is the older metal frame.

Lon
Old 08-05-2006, 05:26 PM
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It is the metal frame.
Old 08-05-2006, 06:10 PM
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Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Good. If you didn't break something, this is how you re-set it. Reach in and press on the striker-sensing switch. As you face the pull-down motor from the rear of the car it will be just in front of the latch. You'll see a spring-loaded black slider on the right, the switch is on the left. The pull-down motor ONLY powers down when that switch is being pressed. If the switch is released mid-cycle the motor will shut off. Hold the switch down until you hear the CLICK. That is the reversing switch being tripped, shutting off teh down-cycle. Now release the switch and the unit should power all the way up and CLICK (again the reversing switch being tripped) shutting off the up-cycle. The fuse for a Firebird is an inline fuse adjacent to the fuse panel. On Camaro it is in the #3 slot (top row, third column from the left). If this doesn't solve the problem, remove the hatch surround trim panel and disconnect the red/white stripe wire from the blue wire. Test the red/white stripe wire for constant +12v. Inspect the clear plastic part of the pull-down motor (called the motor housing) for breakage or cracks. Also grab hold of the latch assy and check for up/down motion (indicates a broken motor housing) or front to back and side to side movement (indicated bad guides). You may have broken your gear nut. The symptom of a bad gear nut is that the motor constinuously runs, yet the latch portion won't go up or down. Check the Tech Article I wrote on this site on how to dosassemble the pull-down motor to repair the guides, gear nut or motor housing. I also list all the GM part numbers.

Lon
Old 08-05-2006, 06:21 PM
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Told you he's the pro, now I bet if he only had a nickle for every time he answered questions about pull downs he would be RICH
Old 08-05-2006, 07:25 PM
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Here are some pictures. The metal looks like it got bent. If you need more pictures of different parts just ask.





Old 08-06-2006, 10:31 AM
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Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Getting the correct solution requires the correct answer. Throw away all the info I gave you previously.

You have the second version with a tan plastic frame. You've bent up the spring-loaded latch release. You're looking at buying another pull-down unit.

Lon
Old 08-06-2006, 12:40 PM
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Alrighty, sorry I didnt give you the right answer Lon, I thought it was the one I said. At least I put up pictures huh? Anywho, I already called around, the only place that had it was the Pontiac dealer..... Thanks for all the help everyone, especially Lon!
Old 08-06-2006, 01:52 PM
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Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Come see me if you want a better deal than your dealer. I don't show them on my web site, but I have some of the 1991-92 pull-downs too. Glad to help.

Lon
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