jon66

o ok guys maybe you can help?
I am getting water on the drivers side floor board of my truck.
I have checked the windows the sunroof and still cant find where it is coming from.
it seems like it is dripping for in side somewhere and falling by the base of the gas pedal .
dose any body have a clue of where it is coming from.
I have run water on the door the roof ,window and can not find leek .
I don't know what else to check.

EvansBlue

Could be condensation from the vents... but that doesn't make sense in the winter.

shawnvw

Subject:
Water Leak in Front Floor Carpet Area - body case cowl housing odor #PI01031 - (04/22/2003)

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Models:
.[/align]

[hr]

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.
Condition/Concern:
Some customers may come to the dealer with an issue of mildew odor or wet carpet in the front passenger seat area.
Recommendation/Instructions:
The three most common causes for this issue result from:
A) Water backing up at the plenum drain
B) Voids in the plenum seam sealer, or
C) The HVAC recirculation door being left open
D) Door harness boot
E) Plenum/Cowl/Instrument sub panel - sometimes referred to as windshield tray
A) Too much sealer at the plenum drain area can act as a dam, allowing water to back up in the plenum and either seep around the air box seal, or around the lower right air box mounting screw. If a plenum drain has a ridge of sealer higher than 1/4 inch, use a utility knife to cut the sealer down to 1/4 inch in height.
A) Too much sealer at the plenum drain area can act as a dam, allowing water to back up in the plenum and either seep around the air box seal, or around the lower right air box mounting screw. If a plenum drain has a ridge of sealer higher than 1/4 inch, use a utility knife to cut the sealer down to 1/4 inch in height.
B) A mirror can be used to examine the inside of the plenum for possible voids in the seam sealer where water can gain entry to the passenger compartment. Seal any voids using the procedures listed in your service manual.
C) The HVAC recirculation, or air box, door opens upward when the HVAC conrols are set to Max A/C. In extreme conditions, water can pool on top of this door and spill into the vehicle. This door can remain open if the HVAC mode is set to Max A/C when the ignition key is cycled off. Customers should be informed of this condition and should be advised to turn the HVAC setting to the regular A/C or OFF position before turning the vehicle off.
D) Water that is found in either the driver or passenger floor at the 'A' pillar may have entered at the door harness boot on the 'A' pillar side. Make sure the boot harness if fully seated in the 'A' pillar.
E) Water may enter at the three piece Plenum/Cowl/Instrument sub panel. This area must be sealed from the inside of the vehicle, which will need the dash assembly removed to gain access. This area can be sealed by spraying a clear sealer (KENT is the brand) in a gallon commercial sprayer, up under the Plenum/Cowl/Instrument sub panel.

shawnvw

Subject:
General Water Leak Guide #02-08-57-004 - (06/05/2002)

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Models:
1996-2002 Chevrolet S-10, Blazer[/align][align=left]




1996-2002 GMC Sonoma, Jimmy[/align][align=left]




1996-2001 Oldsmobile Bravada[/align]

[hr]

The conditions below are prioritized in order of most common leak areas.
When watertesting at the front of the vehicle, run water down the center of the windshield to fill the plenum, as well as the corners of the windshield for hinge pillar entry.




Leak Area

Condition


Right front floor wet

1


Right or left floor wet under carpet

2


Front or rear floor wet under carpet

3


Water coming out of kick pad

4


Windshield leak

5


"A" Pillar leak

6


Third door waterleak

7


Carpet wet in the rear

8


Carpet wet in the rear and or in the corners at the base of the "C" pillar

9


Rear floor wet

10


Rear floor wet (1/4 Window Pickup)

11


Water at the base of the "D" pillar.

12
Condition 1
Right front floor wet.
Cause A



The right or left plenum drain may be plugged or the drain has excess sealer that acts as a dam. (Right side shown, left side typical). Refer to the illustration above.
Cause B
[ol]



Water may enter through the air box if the air box is loose. Refer to the illustration above.
The air box may have excess sealer causing interference and not allowing the air box to seat properly.
Max A/C is turned on through a car wash or heavy rain. [/ol]
Correction A
Remove the obstruction or trim away excess sealer leaving no higher than 6.35mm (1/4 in) to the bottom edge of the drain.
Correction B
[ol]If the air box is loose, tighten the lower right fastener first, then the other fasteners in a clockwise order (lower right, lower left, upper left, upper right) to 10N·m (89lbin).
If the air box cannot be seated properly against the front of dash due to an interference from the sealer, cut away excess sealer in order to allow a proper seal.
Max A/C opens the recirculation/air box door (upward) in the air box. Water can pool on the door and gain entry to the front passenger compartment. Excess water can enter through the cowl grill fasteners and drop onto an open air box door, or splash onto the door from the plenum. It is sometimes possible to minimize the amount of water gaining access to the door by applying thumb grade sealer to the right most cowl grille fastener and the upper fender bolt holes before securing. [/ol]
Condition 2
Right or left front floor wet under carpet.
Cause A






The inside of the plenum along the hinge pillar may have a void in the sealer. Refer to the illustration above.
Cause B



Inspect for voids outside the plenum along the hinge pillar. Refer to the illustration above.
Correction
Clean the area with one of the cleaners listed below and seal the area with one of the sealers listed below.
Condition 3
Front or rear floor wet under carpet.
Cause A
[ol]Make sure the primary door weatherstrip is properly seated (especially in the corners) and not warped or damaged.
Excess sealer to the primary seal mounting flange may prevent the seal from seating all the way. [/ol]
Cause B
The front or rear door water deflector may not be seated properly to the door frame.
Correction A
[ol]Seat the seal to the flange.
Remove the seal and remove the excess sealer from the mounting flange.



Important:Once a weatherstrip has been improperly seated, it is sometimes necessary to completely remove, reinstall or replace the weatherstrip.
If you have verified the above and water is still entering the vehicle in this area, the outer flap of the weatherstrip can be trimmed at the butt joint to allow water to exit rather than enter the vehicle. Refer to the illustration above. [/ol]
Correction B
[ol]Clean the door surface (around the perimeter of the water deflector) with one of the cleaners listed below, or equivalent.
Important:The door surface must be at room temperature or the adhesive will not stick.
Using a 51mm (2 in) wallpaper roller, roll out the butyl adhesive. Start at the bottom center and work outboard up the right and left sides.
A 51mm (2in) roller may be purchased at your local hardware or wallpaper store.[/ol]
Condition 4
Water coming out of lower kick pad.
Cause
The door wire harness grommet may not be seated to the "A" pillar.
Correction
Make sure the grommet is fully seated to the "A" pillar.
Condition 5
Windshield leak.
Cause
There may be a void in the urethane sealer.
Correction
[ol]Use compressed air and soap and water to determine whether the windshield is leaking.
Remove and reseal the windshield. [/ol]
Condition 6
"A" pillar leaks.
Cause
Verify that the sunroof drain hole is not plugged, and that the drain hose is correctly routed through the "A" pillar.
Correction
If the drain hole is not plugged, and the drain hose is correctly routed, inspect the primary seal for gaps, warping or disfigurement.
Condition 7
Third door waterleak to the primary seal.
Cause
Third door waterleaks are generally caused by insufficient compression at the top of the door or by an improperly seated third door weatherstrip.
Correction A



Repair insufficient compression by adding an additional piece of itch tape behind the secondary weatherstrip. Refer to the illustration above. A double thickness is supplied at the factory in this location. Adding one more thickness will stop some leaks. If adding itch tape does not stop the leak, bend the top of the door slightly so that it contacts the secondary seal.
Correction B



Third door weatherstrip related leaks are caused by the bottom push pin not being seated (refer to the illustration above), or by a gap anywhere along the vertical surface of the seal. If the bottom pin is seated, remove the seal and reinstall using the following sequence.[align=left]



•
Seat the upper weatherstrip pin.[/align][align=left]



•
Seat the lower weatherstrip pin.[/ali

jon66

thanks for your help shawnvw !!
I will be shecking every thing this weekend .

shawnvw

np man
let us know what you find

SPOOLN6

Hi Members,

I recently acquired a 99 Chevy S10 Blazer 2WD from a good friend because he had to downsize. He bought the truck last year from the original owner from Kentucky. 169K miles and looked like it was in good hands. I joined this forum looking for assistance in tracking down a water leak to the driver side floor board. To avoid guessing that it might have been the upper reveal molding, I decided to double check the cowl area. I removed the grille pieces and ran 2 cups of water into the cowl. It took awhile before it dripped onto the floor. I could not see much until I decided to remove some of the interior pieces off and pulled the carpet back. Sure enough I found the leak behind the E- Brake, coming from a bolt from left side of the firewall. Difficult to see what the bolt is connected to. Shown pictures below. I plan to look online for a diagram, maybe remove the fender well to see the front side of the firewall, and/or seek professional help from a body shop. Just wanted to thank you guys especially Shawn for all the help in previous replies regarding this topic. Hope this will be an easy fix, but usually it's NOT. LOL!!

Regards,
Al