Water on the cab floor

Jetwrench · 07-31-2009, 05:29 AM

My 04 is getting water into the passenger side floor and soaking the carpet. I've checked the evaporator drain for leaks, and the heater core shouldn't be the problem since the leak is not antifreeze. I've been under the truck looking for an obvious entry point with no luck. All signs lead to rain water finding it's way in from above or below, but it's not proving easy to find where. Anyone out there run into this problem? Any suggestions before I decide to gut this thing would be appreciated.

Mootsman · 07-31-2009, 05:55 AM

Reseal the windshield with black silicon. Often they begin to leak and it works its way down behind the dash. You may be able to see if it looks worn or cracked.

Beej222 · 07-31-2009, 07:04 AM

i had a similar problem before. the water used to leak though the firewall where i ran my amp wire. to solve the problem i just put a rubber seal around it.

Werloc · 07-31-2009, 11:12 AM

+1 on the windsheild. Check it "GOOD"....!

KAPendley · 07-31-2009, 01:09 PM

Parts stores also sell a very thin transparent silicone just for that purpose. It will run down into very small holes and cracks (in seam sealer even) and stop leaks. If its a viable option, I would pull the kick panels and the carpet from that area, and have someone with low pressure water pour it on your truck while you observe it to try and find the leak and its location.

Jetwrench · 08-01-2009, 05:23 AM

Took the cowl, kick panel and carpet out, then ran a garden hose in the area several times. The windshield is not the source. I did several tests to be sure of that. It appears there is a seam inboard of the fender that is the problem. I can see a steady stream of water running down the front inside of the cab about an inch in from the right side but can't see far enough up past the junk under the dash to pin point it. A dealer should be taking care of this, I think.

Dabates · 08-04-2009, 03:28 PM

Have you been able to determine the source of the leak yet? I'm having a similar problem with my 2001. My truck was recently in for a frame underspray and I assumed that Toyota must have inadvertantly plugged a drain. Mine is dripping on the passenger side in a similar location but only in a really heavy rain...

Jetwrench · 08-06-2009, 05:26 AM

Took it to the dealer, and then was informed there was a service bulletin written in 2000 for this very problem. It's a seam leak issue down inside the cowl area. I was told that the fender, wiper motor and other parts had to come off for access and seam sealer was the fix. There is a 3yr, 36,000m limit on warranty coverage so I was out of luck. If I had known about the SB I would have kept an eye out for this problem. Who knows when it actually started before I found it. They performed the repair, but it has not rained since I got the truck back so I'll have to wait to see if it has been resolved.

They did find my water pump leaking which was covered under my extended warranty.

Dabates · 08-06-2009, 05:32 AM

Any idea how many hours of labour you were in for on that fix? I have approximately 100k on mine so there's no way I'll be able to slide in under warranty. The truck goes in next week for a timing belt and water pump so maybe I'll get them to look into it for me, I really hope it's a plugged drainage hole...

Jetwrench · 08-06-2009, 05:44 AM

A few hours of labor. I dropped it off in the morning, left it overnight and it was ready the next morning. IMO, get it done and stop the leak. If it comes back or isn't fixed the first time, you'll have proof in hand that I assume would negate more cost to you for more work.

FYI: cost of repair was $377

07-31-2009, 05:29 AM	#1
Jetwrench Junior Member Joined: Jul 2009, #20021 Gender: Male Posts: 4 04 TRD 2004 Xtra Cab Automatic	Water on the cab floor My 04 is getting water into the passenger side floor and soaking the carpet. I've checked the evaporator drain for leaks, and the heater core shouldn't be the problem since the leak is not antifreeze. I've been under the truck looking for an obvious entry point with no luck. All signs lead to rain water finding it's way in from above or below, but it's not proving easy to find where. Anyone out there run into this problem? Any suggestions before I decide to gut this thing would be appreciated.

07-31-2009, 01:09 PM	#5
KAPendley Best Hack I Know Name: Andy Joined: Jul 2009, #20407 Location: Hickory, NC Age: 34 Gender: Male Posts: 119 96 2WD V6 Extended Cab 1996 Access Cab Automatic Shaved, Lowered,	Parts stores also sell a very thin transparent silicone just for that purpose. It will run down into very small holes and cracks (in seam sealer even) and stop leaks. If its a viable option, I would pull the kick panels and the carpet from that area, and have someone with low pressure water pour it on your truck while you observe it to try and find the leak and its location. __________________ Andy Pendley Hickory, NC Ex Car Stereo Shop Owner and Hack Extraordinaire!!

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07-31-2009, 05:55 AM	#2
Mootsman Junior Member Joined: Jun 2009, #18418 Location: Gunnison, Colorado Gender: Male Posts: 29 02 Tacoma SR5 2002 Xtra Cab Manual 3" Fabtech Lift	Reseal the windshield with black silicon. Often they begin to leak and it works its way down behind the dash. You may be able to see if it looks worn or cracked.

07-31-2009, 07:04 AM	#3
Beej222 Junior Member Name: BJ Joined: Jul 2009, #20285 Location: Hawaii Gender: Male Posts: 7 01 xtra-cab 4x4 trd 2001 Xtra Cab Manual S/C, 3in lift, 32x11.5 on 15x8	i had a similar problem before. the water used to leak though the firewall where i ran my amp wire. to solve the problem i just put a rubber seal around it.

07-31-2009, 11:12 AM	#4
Werloc Large Member Name: Bob Joined: May 2009, #17604 Location: Manville, NJ Age: 46 Gender: Male Posts: 245 2000 Xtra Cab 4X4 TRD 4 Banger 2000 Xtra Cab Automatic 4 Banger	+1 on the windsheild. Check it "GOOD"....!

08-01-2009, 05:23 AM	#6
Jetwrench Junior Member Joined: Jul 2009, #20021 Gender: Male Posts: 4 04 TRD 2004 Xtra Cab Automatic	Took the cowl, kick panel and carpet out, then ran a garden hose in the area several times. The windshield is not the source. I did several tests to be sure of that. It appears there is a seam inboard of the fender that is the problem. I can see a steady stream of water running down the front inside of the cab about an inch in from the right side but can't see far enough up past the junk under the dash to pin point it. A dealer should be taking care of this, I think.

08-04-2009, 03:28 PM	#7
Dabates Member Joined: Jul 2009, #19485 Location: Guelph, Ontario Gender: Male Posts: 40 2001 TRD 2001 Xtra Cab Automatic 3.4L V6	Have you been able to determine the source of the leak yet? I'm having a similar problem with my 2001. My truck was recently in for a frame underspray and I assumed that Toyota must have inadvertantly plugged a drain. Mine is dripping on the passenger side in a similar location but only in a really heavy rain...

08-06-2009, 05:26 AM	#8
Jetwrench Junior Member Joined: Jul 2009, #20021 Gender: Male Posts: 4 04 TRD 2004 Xtra Cab Automatic	Took it to the dealer, and then was informed there was a service bulletin written in 2000 for this very problem. It's a seam leak issue down inside the cowl area. I was told that the fender, wiper motor and other parts had to come off for access and seam sealer was the fix. There is a 3yr, 36,000m limit on warranty coverage so I was out of luck. If I had known about the SB I would have kept an eye out for this problem. Who knows when it actually started before I found it. They performed the repair, but it has not rained since I got the truck back so I'll have to wait to see if it has been resolved. They did find my water pump leaking which was covered under my extended warranty.

08-06-2009, 05:32 AM	#9
Dabates Member Joined: Jul 2009, #19485 Location: Guelph, Ontario Gender: Male Posts: 40 2001 TRD 2001 Xtra Cab Automatic 3.4L V6	Any idea how many hours of labour you were in for on that fix? I have approximately 100k on mine so there's no way I'll be able to slide in under warranty. The truck goes in next week for a timing belt and water pump so maybe I'll get them to look into it for me, I really hope it's a plugged drainage hole...

08-06-2009, 05:44 AM	#10
Jetwrench Junior Member Joined: Jul 2009, #20021 Gender: Male Posts: 4 04 TRD 2004 Xtra Cab Automatic	A few hours of labor. I dropped it off in the morning, left it overnight and it was ready the next morning. IMO, get it done and stop the leak. If it comes back or isn't fixed the first time, you'll have proof in hand that I assume would negate more cost to you for more work. FYI: cost of repair was $377