How To: fix a leaky trunk

**whitenoyz** · 1-6-08, 12:36

I've noticed my trunk was leaking, and other people have had the same problem. The first place it may be leaking from are the bolt holes where the spoiler mounts. Put a few sheets of newspaper in your trunk and pour water over the spoiler and where it mounts to the trunk. If it is leaking from here, you will see it drip onto the newspaper in a few minutes. If the newspaper is wet towards the back of the car, then you have the same problem I had.

Pour water right here, where it's nice and dirty

What you should see is that most of the water leaks out under the taillight, but not all of it. Some goes into the trunk, through this hole. I decided to make this FAQ after I plugged it up, my bad.

The tube is pointing to where the hole is. You'll see water leaking out of it when you pour it at the side of the trunk. I used RTV sealant to seal up the hole, caulk or any kind of silicone will work just as well.

How great are iPhone pictures?

**gehofff** · 1-6-08, 12:49

Karma'd! If I still had my six, I would have done this immediately, it had a leaky trunk as well.

**ghostling** · 1-7-08, 0:58

thanks man, i've always wondered why the hell my spare tire well always has moisture built up in it.

**whitenoyz** · 1-8-08, 7:34

can this get moved to the maintenance/repair section?

**rockstar55667** · 1-8-08, 19:38

My trunk leak was in a different place...when I first got the car...i drove it around for about a month and then one day i opened the trunk and took a look inside the spare tire well and the tire was sitting in a pool of water (so much so i used a small shop vac to get the water out).

I went to Mazda to see if they could find the leak, but they couldent (they didnt charge me) they said a "leak specialist" could come look at it, but it was gonna cost a lot, so i said [fizzle] that...and I tried to find the leak on my own. So i got inside the trunk, and had my dad spray the car with water for a while. The leak was coming from where you open the trunk...i sealed it off with some silicone and haven’t had any problems since...ill try to post pictures of where im talking about to make it more clear.

^^Thats where i put the silicone, and no water since ^^

Hope this helps someone

**kid_puma** · 1-8-08, 20:07

12-11-06, 15:17

Quote:

Originally Posted by kid_puma

Peviously i had the same problem with my 323 and had conducted many water tests in an effort to find a conclusion to the leaky trunk. After one tremendiously rainy day not only was the spare tire fludded, but a good portion of the car.The same thing happen when i first purchased my mx-6. Simply head down to Candian-tire = Crappy tire or "Parts Store"anyways Get yourself some "Form-a-gasket" .Remove your trunk gasket and commence to seal the perimeter of what would be under the gasket . Also make sure you rotate the gasket to over come previous low spots In the Gasket

Worked for me hope it helps

(~kp~)

**ghostling** · 1-9-08, 1:13

Quote:

Originally Posted by rockstar55667

...took a look inside the spare tire well and the tire was sitting in a pool of water (so much so i used a small shop vac to get the water out).

there's actually a drain plug under the spare tire well that u can pop out to drain the water in it.

**Davaro** · 1-9-08, 7:51

Mine leaks as well - until I get the time to find it (based on above, there are several places it can leak) I have just unplugged the drain rubber in the well.

That way, when it rains, it's wet - when it's dry, it's dry...

**rockstar55667** · 1-9-08, 10:27

Quote:

Originally Posted by ghostling

there's actually a drain plug under the spare tire well that u can pop out to drain the water in it.

Really?...wow good to know thanks!

**rustyfanz** · 1-9-08, 10:46

yea, i found a drain plug in my 626 but after it drained there was still a thin layer of water so i took a hammer and a small screwdriver and poked small holes at 12, 3, 6, and 9 o'clock around the spare tire well....thats just temporary until i can find the leak....i think its in the tail lights, im just not sure how to seal it.....

**max626** · 1-9-08, 11:12

My leak is in the same spot as rockstar but i havent got around to fixing it, also i had a leak similar to whitenoys and used JBWeld...pics soon..

**whitenoyz** · 1-10-08, 6:38

June 3, 1992, Mazda boardroom

Exec 1: OK, we've scrapped the plans for a turbocharger in the 2nd generation MX6s, not enough time to plan it out before the launch.
Exec 2: Damn it, oh well. At least we're launching a problem free car!
Exec 1: Umm, that isn't entirely accurate, there is one small problem.
Exec 2: What is it, Makato?
Exec 1: All of the cars are coming back from the rain test with water in the trunk, we can't seem to find out where it's coming from, it's uncanny.
Exec 2: Well there's no time to find the leak now, just put a drain plug in the bottom of the trunk and launch the damn thing already. Maybe some 22 year old kid will figure out where the hole* is for us

*Because nobody under 18 can ever find the hole

**rockstar55667** · 1-10-08, 10:07

Quote:

Originally Posted by whitenoyz

June 3, 1992, Mazda boardroom

Exec 1: OK, we've scrapped the plans for a turbocharger in the 2nd generation MX6s, not enough time to plan it out before the launch.
Exec 2: Damn it, oh well. At least we're launching a problem free car!
Exec 1: Umm, that isn't entirely accurate, there is one small problem.
Exec 2: What is it, Makato?
Exec 1: All of the cars are coming back from the rain test with water in the trunk, we can't seem to find out where it's coming from, it's uncanny.
Exec 2: Well there's no time to find the leak now, just put a drain plug in the bottom of the trunk and launch the damn thing already. Maybe some 22 year old kid will figure out where the hole* is for us

*Because nobody under 18 can ever find the hole

Lol thats so true...they must have knew the damn thing had a leak in the first place...why didnt they just fix it instead of putting a drain plug??

**max626** · 1-10-08, 10:25

Most cars have drain plugs in the trunk for situations like this one, as far as the leak goes the seals*note my pics* crack over time and water seeps through it. Now were the trunk and bumper meets i believe its just the trunk seal itself which leaks but i do agree Mazda should designed a better rear bumper in that it had a cover of some sort to cover where rockstar sealed up his leak.

badboyzracingbi · 3-7-08, 1:40

Not to mention the snow that falls into the trunk if you don't clear it off properly before opening it.

1-6-08, 12:36	#1 (permalink)
whitenoyz Free candy at my place!!! Join Date: Dec 2004 Location: Philadelphia, PA Age: 23 iTrader: (1)	How To: fix a leaky trunk I've noticed my trunk was leaking, and other people have had the same problem. The first place it may be leaking from are the bolt holes where the spoiler mounts. Put a few sheets of newspaper in your trunk and pour water over the spoiler and where it mounts to the trunk. If it is leaking from here, you will see it drip onto the newspaper in a few minutes. If the newspaper is wet towards the back of the car, then you have the same problem I had. Pour water right here, where it's nice and dirty What you should see is that most of the water leaks out under the taillight, but not all of it. Some goes into the trunk, through this hole. I decided to make this FAQ after I plugged it up, my bad. The tube is pointing to where the hole is. You'll see water leaking out of it when you pour it at the side of the trunk. I used RTV sealant to seal up the hole, caulk or any kind of silicone will work just as well. How great are iPhone pictures?
	The prospect of outsized profits leads people to exaggerate their own capabilities. In their minds. They pretend to themselves that they are in control of events where perhaps they are not. And it is always one's stance upon uncertain ground that invites the attention of one's enemies. or discourages it.

1-7-08, 0:58	#3 (permalink)
ghostling Join Date: May 2006 Location: Burnaby, B.C., Canada Age: 25 iTrader: (0)	thanks man, i've always wondered why the hell my spare tire well always has moisture built up in it.
	Mods: KLZE, I/H/E, Hi-Flow Cat, Stainless clutch line, Engine mount inserts, ACT HDSS clutch, MX-3 flywheel, Chipped ECU, J-Specs w/HID, K-Sport coilovers, RSTB, FSTB, Addco RSB, Clear side markers Not installed yet: HEI module

1-8-08, 7:34	#4 (permalink)
whitenoyz Free candy at my place!!! Join Date: Dec 2004 Location: Philadelphia, PA Age: 23 iTrader: (1)	can this get moved to the maintenance/repair section?
	The prospect of outsized profits leads people to exaggerate their own capabilities. In their minds. They pretend to themselves that they are in control of events where perhaps they are not. And it is always one's stance upon uncertain ground that invites the attention of one's enemies. or discourages it.

1-8-08, 19:38	#5 (permalink)
rockstar55667 Join Date: Feb 2004 Location: Miami, FL, USA Age: 21 iTrader: (0)	My trunk leak was in a different place...when I first got the car...i drove it around for about a month and then one day i opened the trunk and took a look inside the spare tire well and the tire was sitting in a pool of water (so much so i used a small shop vac to get the water out). I went to Mazda to see if they could find the leak, but they couldent (they didnt charge me) they said a "leak specialist" could come look at it, but it was gonna cost a lot, so i said [fizzle] that...and I tried to find the leak on my own. So i got inside the trunk, and had my dad spray the car with water for a while. The leak was coming from where you open the trunk...i sealed it off with some silicone and haven’t had any problems since...ill try to post pictures of where im talking about to make it more clear. ^^Thats where i put the silicone, and no water since ^^ Hope this helps someone
	"Dream as if you'll live forever, live as if you'll die today" James Dean GO SOX!!! World Series CHAMPS!!! DRINK BEER!

1-9-08, 10:46	#10 (permalink)
rustyfanz Join Date: Jun 2006 Location: North Platte, NE, USA Age: 18 iTrader: (0)	yea, i found a drain plug in my 626 but after it drained there was still a thin layer of water so i took a hammer and a small screwdriver and poked small holes at 12, 3, 6, and 9 o'clock around the spare tire well....thats just temporary until i can find the leak....i think its in the tail lights, im just not sure how to seal it.....
	1990 626 DX 1989 Mustang LX convertable, 302 w/ Edelbrock Victor Jr. intake, Edelbrock 4BBL Carb, Headers, Rebuilt C6 Tranny+much more - new top on soon *NOT voting for Hillary*

1-9-08, 11:12	#11 (permalink)
max626 Join Date: Nov 2003 Location: Queens, New York, NY, USA Age: 19 iTrader: (1)	My leak is in the same spot as rockstar but i havent got around to fixing it, also i had a leak similar to whitenoys and used JBWeld...pics soon..
	Iam just a regular everyday normal guy... Twin Turbo KJG4 project...... CF Roof BB Feeler

1-10-08, 6:38	#12 (permalink)
whitenoyz Free candy at my place!!! Join Date: Dec 2004 Location: Philadelphia, PA Age: 23 iTrader: (1)	June 3, 1992, Mazda boardroom Exec 1: OK, we've scrapped the plans for a turbocharger in the 2nd generation MX6s, not enough time to plan it out before the launch. Exec 2: Damn it, oh well. At least we're launching a problem free car! Exec 1: Umm, that isn't entirely accurate, there is one small problem. Exec 2: What is it, Makato? Exec 1: All of the cars are coming back from the rain test with water in the trunk, we can't seem to find out where it's coming from, it's uncanny. Exec 2: Well there's no time to find the leak now, just put a drain plug in the bottom of the trunk and launch the damn thing already. Maybe some 22 year old kid will figure out where the hole* is for us *Because nobody under 18 can ever find the hole
	The prospect of outsized profits leads people to exaggerate their own capabilities. In their minds. They pretend to themselves that they are in control of events where perhaps they are not. And it is always one's stance upon uncertain ground that invites the attention of one's enemies. or discourages it.

1-10-08, 10:25	#14 (permalink)
max626 Join Date: Nov 2003 Location: Queens, New York, NY, USA Age: 19 iTrader: (1)	Most cars have drain plugs in the trunk for situations like this one, as far as the leak goes the sealsnote my pics crack over time and water seeps through it. Now were the trunk and bumper meets i believe its just the trunk seal itself which leaks but i do agree Mazda should designed a better rear bumper in that it had a cover of some sort to cover where rockstar sealed up his leak.
	Iam just a regular everyday normal guy... Twin Turbo KJG4 project...... CF Roof BB Feeler

3-7-08, 1:40	#15 (permalink)
badboyzracingbi New Member Join Date: Feb 2008 Location: Age: 33 iTrader: (0)	Not to mention the snow that falls into the trunk if you don't clear it off properly before opening it.