HeLp Wet no SOAKED front floors 2008 Sierra

[08LMM08LMM]

I have a serious amount of water in the carpeting and matting under the driver and passenger floors. I have been plowing a lot getting in and out but it still seems like a lot of water to me hopefully someone else has had this problem and has some ideas. It's bubbling the paint and rusting on the drivers side on the flat metal around the e brake cable not touching the gasket just where the water pools?????????

[GMCustomerService]

Originally Posted by 08LMM08LMM

I have a serious amount of water in the carpeting and matting under the driver and passenger floors. I have been plowing a lot getting in and out but it still seems like a lot of water to me hopefully someone else has had this problem and has some ideas. It's bubbling the paint and rusting on the drivers side on the flat metal around the e brake cable not touching the gasket just where the water pools?????????

08LMM08LMM,

I’m sorry you are experiencing this issue with your Sierra vehicle. This may be due to the parking brake cable grommet becoming unseated. This is just a suggestion and is not meant as a diagnosis.

I recommend consulting with a certified technician for additional assistance. They will be able to offer an official diagnosis after inspecting the vehicle.

Please keep us posted.

If you need assistance locating a technician near you, please PM me your zip code for a listing.

Louis (assisting Michelle)
GM Customer Service

[whitemax&al]

i sprayed some carpet cleaner in my floor and literaly put the hose in the truck took off the denali trim piece on the floor and trim around hood release and scrubbed the carpet while i let the hose run and flush out of the truck water just ran off and out then i pulled the carpet up did the same to the back side and the pad and under the pad ehile i was sucking it out with a shop vac completely soaked it flooded it got all the salt and soap out then went to town with the shop vac and an air compressor then put a fan in over night dry as can be then i put some towels doen under my weather techs did this to pass and driver side i was getting rust dripping down from the weather stripping cleaned it all up now i make sure i kick my boots even with weathertechs it still got wet but been good so far

[08LMM08LMM]

Thanks guys for all the help I just checked the rear floors and try are dry as a none so maybe it is just water from melting snow I'm still gonna check the drain in the ac unit because I'm getting that musty smell when the truck sits a few days without use

[nmeyer414]

just off hand, have you wiped a little of the moisture up and smelled it? heater core might be leaking?

[Duramax381]

Kinda what I was thinking, heater core leak.

[MudDoc]

never been able to diagnose my problem, but I was told by a reputable HVAC shop cause I suspected heater core that the way the NBS systems are designed if the heater core goes it will not drain into the cab it will drain out of the condenser drain.

IDK how true that is but they know HVAC and I don't jack with it

[08LMM08LMM]

It smells like moldy water

[08LMM08LMM]

The heat the truck produces seems to be fine it's hot as hell on high don't know if that makes a diff

[racing17]

I had a similar issue on drivers side with the floor getting wet. Turned out to be the grommet that goes between the cab post and the door. On the cab post it was wrinkled and letting water run in when it came off the edge of the windshield cowl and down the side. Just a thought.