Water in passenger floor board

Hello,

If you gently slide your hand up under the HVAC system on the passenger side you should feel the drain hose sticking through the floor/firewall. Below is a picture where it is located approximately on your vehicle.

Next, if you look under the hood at the firewall passenger side, you will see your AC lines going into the evaporator. Look straight down from that towards the ground and you will see the drain hose coming from inside the car pointing down. A picture is below.

Next, I would first check the drain for being clogged.

Hello,

Also, it looks like you may have some recalls on your vehicle. The dealer may fix these for free. Please contact the dealer service department, give them the VIN number of your car and have them check on these to see if they apply to you.

STRUCTURE: BODY: ROOF AND PILLARS
NHTSA RECALL BULLETIN
Reference Number(s): 07V468000
Related Ref Number(s): 07V468000
ARTICLE BEGINNING
VEHICLE DESCRIPTION
Model(s): 2007 CADILLAC CTS
Campaign No: 07V468000
Number of Affected Vehicles: 9648
Beginning Date of Manufacture: NO DATE
Ending Date of Manufacture: NO DATE
SYSTEM
STRUCTURE: BODY: ROOF AND PILLARS
DESCRIPTION OF DEFECT
CERTAIN VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 1008, 'POWER OPERATED WINDOW, PARTITION, AND ROOF PANEL SYSTEMS.' UNDER THE STANDARD, THE SUNROOF MAY ONLY BE CLOSED WHEN THE IGNITION IS ON, OR AFTER THE IGNITION IS TURNED OFF, BUT BEFORE EITHER OF THE FRONT DOORS ARE OPENED. THE AFFECTED VEHICLES MAY EXHIBIT A CONDITION WHERE THE SUNROOF CAN BE CLOSED AFTER THE IGNITION IS TURNED OFF AND THE DOORS ARE OPENED.
CONSEQUENCE OF DEFECT
THIS STANDARD SPECIFIES REQUIREMENTS FOR POWER OPERATED WINDOW, PARTITION, AND ROOF PANEL SYSTEMS TO MINIMIZE THE LIKELIHOOD OF DEATH OR INJURY FROM THEIR ACCIDENTAL OPERATION.
CORRECTIVE ACTION
DEALERS WILL INSTALL A WIRE HARNESS. THE MANUFACTURER HAS NOT YET PROVIDED A RECALL NOTIFICATION SCHEDULE FOR THIS CAMPAIGN. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339.

SUSPENSION: REAR: AXLE: SPINDLE
NHTSA RECALL BULLETIN
Reference Number(s): 07V589000
Related Ref Number(s): 07V589000
ARTICLE BEGINNING
VEHICLE DESCRIPTION
Model(s): 2005 CADILLAC CTS
2005 CADILLAC SRX
2005 CADILLAC STS
2006 CADILLAC CTS
2006 CADILLAC SRX
2006 CADILLAC STS
2006 PONTIAC SOLSTICE
2007 CADILLAC CTS
2007 CADILLAC SRX
2007 CADILLAC STS
2007 PONTIAC SOLSTICE
2007 SATURN SKY
Campaign No: 07V589000
Number of Affected Vehicles: 275936
Beginning Date of Manufacture: 2005 MAR
Ending Date of Manufacture: 2007 JUN
SYSTEM
SUSPENSION: REAR: AXLE: SPINDLE
DESCRIPTION OF DEFECT
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
CONSEQUENCE OF DEFECT
A REAR DIFFERENTIAL FAILURE MAY CAUSE LOSS OF MOTIVE POWER AND POSSIBLY LOSS OF CONTROL INCREASING THE RISK OF A CRASH.
CORRECTIVE ACTION
DEALERS WILL REPLACE THE PINION SEAL FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING FEBRUARY 2008. OWNERS MAY CONTACT CADILLAC AT 1-800-982-2339, PONTIAC AT 1-800-620-7668 AND SATURN AT 1-800-972-8876.