trunk leak (Page 1/2)
fierce_gt SEP 16, 10:42 PM
my apologies if this has been covered, i've been trying to find what i'm missing, but starting to think it's just such an obvious answer nobody bothered to ask it...

what is supposed to stop the water from entering where the red arrow is? water(or anything that can fit through a 1/4" hole) is coming in through that opening, then pooling near the blue arrows and soaking my trunk.
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the seal seems to be in pretty good shape, but is water really not sealed off at the lock cylinder? this seems like a crazy design if water is allowed to get in under the decklid, and pool all around the outside of that trunk seal. what am i missing?
fierosound SEP 16, 10:51 PM
Water should drain out where the red arrow is (unless someone sealed it up).
Normally there's a gap between the bodywork and the metal trunk below the trunk seal.
Pull the seal back in the area to check that it is open.
It IS the low spot where water will flow to and out.


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[This message has been edited by fierosound (edited 09-16-2019).]

Mike in Sydney SEP 16, 10:53 PM
I suspect the water is ponding and then flowing over the weatherstrip. Try adjusting the trunk lock hasp and the bump-stops on the trunk lid to get a tighter seal. The bump-stops will screw in or out and the hasp will move up or down . It worked for me.

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Mike in Sydney

Mike in Sydney SEP 16, 10:54 PM
I suspect the water is ponding and then flowing over the weatherstrip. Try adjusting the trunk lock hasp and the bump-stops on the trunk lid to get a tighter seal. The bump-stops will screw in or out and the hasp will move up or down . It worked for me.

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Mike in Sydney

fierce_gt SEP 16, 11:14 PM

quote
Originally posted by fierosound:

Water should drain out where the red arrow is (unless someone sealed it up).
Normally there's a gap between the bodywork and the metal trunk below the trunk seal.
Pull the seal back in the area to check that it is open.
It IS the low spot where water will flow to and out.




hmm. that area where the red arrow is, is definitely not a 'low spot' on my car. it just seems odd to me that it's so 'open'.

i'll take a look for a gap, but obviously i do have a problem. the trunk was soaked after i washed the car

EDIT: ok, i think i see what you are talking about with the lock cylinder. it seems that my issue is where the blue arrows are. if i pour water where the red arrow is, it drains onto the floor. if i pour water where the blue arrows are, it drains into my trunk.

[This message has been edited by fierce_gt (edited 09-16-2019).]

fierosound SEP 17, 01:17 AM

quote
Originally posted by fierce_gt:

EDIT: ok, i think i see what you are talking about with the lock cylinder. it seems that my issue is where the blue arrows are.
if i pour water where the red arrow is, it drains onto the floor. if i pour water where the blue arrows are, it drains into my trunk.




It should flow around to the back of the car.
Sounds like someone may have siliconed something up or "D" plates aren't in right.
Someone had same problem:
http://www.fiero.nl/forum/Forum2/HTML/000194.html

[This message has been edited by fierosound (edited 09-17-2019).]

1Packrat SEP 17, 11:48 AM
To find my leak in the trunk the only way I found it was when it was dry was to spread Talcum Powder around the seal and outside the seal area. Close the trunk and run water all around it and follow the white line that will lead into the trunk.

[This message has been edited by 1Packrat (edited 09-17-2019).]

fierce_gt SEP 17, 02:53 PM
oh there's no doubt where it is(there might be more, but i KNOW it's leaking from the sides). I guess I'll pull back the trunk seal and have a look to see if the gap has been sealed up.

I have to say though, this seems like a really sketchy design. I'm honestly kind of shocked that the intended path is to have water flow under the decklid, and around the trunk. Like the trunk isn't at all sealed, it's just relying on the water never pooling up.
pmbrunelle SEP 17, 07:14 PM
Uhhh, most cars have a panel gap between the trunklid and the quarter panels. Water is allowed to enter the gap; water must then be drained from the channel below the gap. Typically, the water is drained towards the rear of the car.

For example, see a recent Toyota Corolla:


But it's not just the Corolla; this trunk sealing setup is quite universal.

A little bit older:


Same thing there.

In the case of the Fiero, the spaceframe (and its trunk) was clearly designed with the notchback body in mind. Since the fastback (and its higher-up decklid) was added later, they made the opening in the rear clip drop down to mate with a notchback's trunk. So that's a bit weird. The drop-down is obviously a consequence of a non-clean-sheet design, but today we can appreciate the parts commonality.

[This message has been edited by pmbrunelle (edited 09-17-2019).]

fierce_gt SEP 18, 01:19 PM
i guess i just never thought about it with cars that have trunks that aren't entered 'from the top'. And yes, i have only had notchies before, and that's the way it looks like it was 'intended'. the water actually runs around the trunk, not over the trunk(d-plates).