Water in rear passenger floor board, Dealer says it is not a pulgged AC drain line

Asked by Aug 25, 2014 at 10:22 PM about the 2009 Chevrolet Malibu LS

Question type: Maintenance & Repair

2009 Chevy Malibu water soaked passenger rear floor board. I took it to the Chevy Dealer for an oil change and asked them to blow out the drain line to the AC unit. They said it was not plugged and would look at the AC core for a leak, The AC unit works fine we are in Florida and it keeps the car very cold when in operation. What could be the cause for the water showing up in the rear floor board and not in the front floor board.

4 Answers

72,045

Doe,s it have sunroof?

2 of 2 people found this helpful.
17,905

Does the wet water have a smell like anti freeze? If so, there is where you start to look. Does the water show up after you wash the car or it is outside in the rain? Rear windows down or rubber gaskets around the doors getting soft and need replacing? Do you drive it in the rain and is there any deep puddles you drive through? Next time the oil is changed, have them look to see it there are any holes in the floor pan. Is the rear window secure and no leaks? Water only on the floor and not seats or rear deck? The A/C line should not be inside the car, it's usually in the engine compartment.

1 of 1 people found this helpful.
20

After 2 weeks of rain, our '08 Malibu had water in the trunk, 6 inches in the tire well, as well as water in the rear foot wells. the rear window seal leaks. I can see air bubbles under the glass, where the seal has pulled away from the glass. I cleaned the recessed channel around the window, and caulked it with black latex w/ silicone up to flush with the body and glass ...no more leaks.

2 of 2 people found this helpful.
20

i looked into it , stuff from trees and stuff can clog your vent s on top by the hood and when it rains it goes down and blocks the drain hose and eventually the when you using your a/c the water condensation builds up like a dam and gets your under carpet wet if it has a coolant mix of coolant color then you got a leak most likely the heater core if its just clear water than its build up from a/c drain from being blocked from the vents the best thing to do is to use a shop vac and vacuum out the top of the vent wash it and do that a few times and then go und the car and find the a/c drain either put another hose to and it flush it out with a garden hose or use a air blower with shop air compressor and seal it and blow a few time then that should stop the water from the a/c from dam'n up the condensation from getting your carpet wet and should drain out the drain line like it suppose too .. other wise look for leaks

2 of 2 people found this helpful.

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