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87 firebird door latch problems

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Old 09-17-2024, 05:01 PM
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87 firebird door latch problems

So I replaced the passenger door latch because even after cleaning it my power locks still wouldnt work. I used one of those a premium latches off amazon since thats all I can find. After replacing the latch the door wouldnt close easily, to fully close I had to slam it. Also bearing in mind I currently have the inner door seal off while waiting for replacements. Ive adjusted the striker and even with it far enough out that the door doesnt sit flush to the body and it still takes more force to close than the other side and the handle seems to have a lot of tension since its hard to pull compared to the other side. Anything im missing or should ask them to send me another latch?



Last edited by marsond; 09-17-2024 at 05:15 PM.
Old 09-17-2024, 08:25 PM
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Re: 87 firebird door latch problems

How are the door hinges?
Old 09-18-2024, 05:50 AM
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Re: 87 firebird door latch problems

As far as I can tell theyre ok, the door doesnt look like it sagging.Should I adjust the striker downward to account for possible hinge issues or is there another check I can do?
Old 09-18-2024, 03:59 PM
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Re: 87 firebird door latch problems

Open the door all the way, grab it from the bottom and lift up. Check for loose hinges and let us know what you found.
Old 09-18-2024, 04:46 PM
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Re: 87 firebird door latch problems

It has less than 1/8 inch of movement up and down.
Old 09-18-2024, 09:16 PM
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Re: 87 firebird door latch problems

Is the door latch high or low when lining it up to the striker bolt?
Old 09-19-2024, 07:29 AM
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Re: 87 firebird door latch problems

Just because the latch is new is not a sure thing that it is working like it suppose to.
Old 09-19-2024, 07:52 AM
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Re: 87 firebird door latch problems

typically when power locks don't work you need to first try and clean / grease the hell out of all the rods and moving pieces of the system.
i recently replaced my lock actuators because the locks weren't working unless you pressed the button a million times in a row. replacing the actuators didn't fix the problem. i then used white lithium grease on all the moving parts where the rods attach to the latch. i needed to spray multiple times and then work the rods back and forth to really get the grease into all the nooks and crannies. eventually i got everything fixed so now the doors lock and unlock with one press of the button.
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Old 09-19-2024, 04:29 PM
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Re: 87 firebird door latch problems

I am getting old. My 83 is all manual and never had electric locks. Sorry, but at least you know your hinges are ok.
Old 09-19-2024, 05:58 PM
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Re: 87 firebird door latch problems

When closing tbe door I dont feel like a hump or any kind of jump when hitting the striker, leading me to believe I dont have a sag issue. I do however have to push quite hard. Heres a picture of the latch and striker with the door cracked. At this point im thinking I may have a bad new latch, but I dont see any alternative latches listed. Also I did clean the old latch pretty well and even let it soak in degreaser but the power locks still wouldnt work, but they do with the new latch.

Old 09-20-2024, 08:33 AM
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Re: 87 firebird door latch problems

From your picture it looks like the striker bolt is to low.
Old 09-20-2024, 08:39 AM
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Re: 87 firebird door latch problems

I suppose I could try grinding a slot upward to see if it fixes it. Gotta wait for my hand to heal alittle first.
Old 09-20-2024, 08:45 AM
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Re: 87 firebird door latch problems

Originally Posted by marsond
Looking at this, it seems to me, too, that the bolt is sitting too low.
And also too far outward, as those marks in the latch show... BUT... that may be because you don't have door seals.
If the power door locks work fine, the mechanics of the lock are also fine, so you may want to try adjusting the latch mechanism as far as the 3 mounting bolts allow and then, if still necessary, adjust the bolt itself, but there's not all too much play available at that end.
I've seen people extending the bolt with shims and widening the bolt hole to get more play, but would recommend that only as last resort.
Old 09-20-2024, 09:18 AM
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Re: 87 firebird door latch problems

Im not sure how its supposedto be but on mine the 3 mounting bolts and the holes in the door all have a tapered part so im under the impression that only the strikers adjustable. Ive already widened the adjustment on the striker so I suppose it wont hurt to raise it some just to see if it sorts it out.
Old 09-20-2024, 01:36 PM
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Re: 87 firebird door latch problems

Originally Posted by marsond
I suppose I could try grinding a slot upward to see if it fixes it. Gotta wait for my hand to heal alittle first.

you shouldn't have to grind it. You can loosen the striker a bit and move it upward
Old 09-20-2024, 02:06 PM
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Re: 87 firebird door latch problems

I would also suggest you buy the field service manual for the year of car you have. It covers everything. Almost.

Last edited by Edwardgp; 09-20-2024 at 02:08 PM. Reason: and on
Old 09-20-2024, 02:16 PM
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Re: 87 firebird door latch problems

On my car the adjustment hole was the size of the striker and had no room for adjustment without grinding.
Old 09-20-2024, 04:07 PM
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Re: 87 firebird door latch problems

Was your car ever in a crash.
Old 09-20-2024, 08:21 PM
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Re: 87 firebird door latch problems

Clean title and the previous owner didnt disclose anything, but there is a few spots where it looks like the paint might have been resprayed.
Old 09-21-2024, 09:45 AM
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Re: 87 firebird door latch problems

It looks like NCC2569s fix might be the answer for you. Keep us updated.
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