Door thud?
11-16-2005, 04:00 PM
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Car: 1989 GTA
Engine: 350 TPI L98
Transmission: 700R4
Door thud?
I was pretty impressed with my new GTA at how little it rattled when I got it, but there is one big one that I cant seem to figure out what it is.
It only happens when I hit a fairly decent size bump. It makes a solid thud from what sounds like the door latch/striker bolt area. The hinges are good and the door stays latched good. The rear suspension is nice and solid, the trans crossmember has a new poly mount. So Im fairly sure it isnt coming from under the car.
Have any of you had this problem on your car? If so what was worn out/broken and what did you do to fix it? Thanks for the help.
-Adam
It only happens when I hit a fairly decent size bump. It makes a solid thud from what sounds like the door latch/striker bolt area. The hinges are good and the door stays latched good. The rear suspension is nice and solid, the trans crossmember has a new poly mount. So Im fairly sure it isnt coming from under the car.
Have any of you had this problem on your car? If so what was worn out/broken and what did you do to fix it? Thanks for the help.
-Adam
Last edited by 85_TA_WS6; 11-16-2005 at 04:25 PM.
11-17-2005, 12:54 PM
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Car: 1989 GTA
Engine: 350 TPI L98
Transmission: 700R4
Well does anybody know what exactly loosens up within the door latch that would hold the striker bolt tight?
Is there a bushing or wear part that can be replaced?
Or do I have to replace the whole door lock assembly?
I would like to know what parts I may need before I tear it apart because it needs to sit outside (under a cover of course
) and the doors need to be shut tight. So if I have the parts before hand I can always take something back and not have the door hanging open. Any help anybody can give would be appreciated.
Is there a bushing or wear part that can be replaced?
Or do I have to replace the whole door lock assembly?
I would like to know what parts I may need before I tear it apart because it needs to sit outside (under a cover of course
) and the doors need to be shut tight. So if I have the parts before hand I can always take something back and not have the door hanging open. Any help anybody can give would be appreciated. 
11-17-2005, 04:59 PM
#5
It's likely your door pin/bushings. I had this problem with my car. I couldn't figure out where the thud was coming from because the hinges seemed tight when the door was opened. I figured it out by shutting the door with the window open and tried lifting the door. There was enough play that the door would "bounce" over big bumps and give a thud sound. Note: I wouldn't do it when the window was up though. The window put enough pressure on the door to keep it from bouncing. HTH 
11-17-2005, 10:59 PM
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Car: 1989 GTA
Engine: 350 TPI L98
Transmission: 700R4
I'll have to try that out, I didnt think the window would put enough pressure on it so you couldnt feel it, but apparently it can. Thanks for the replies.
Oh and I have no t-tops, and yes it does have power windows. But I've heard a loose window mechanism before and it doesnt have the sharp chatter sound of a loose window or track.
Has anybody ever had a problem with the hatch pull down motor not holding the hatch tight enough and getting a thud over bumps?
Oh and I have no t-tops, and yes it does have power windows. But I've heard a loose window mechanism before and it doesnt have the sharp chatter sound of a loose window or track.
Has anybody ever had a problem with the hatch pull down motor not holding the hatch tight enough and getting a thud over bumps?
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