Needs heater core tested and replaced
You have a leaking heater core, you do not need a windshield, but you might wish you did since it is probably cheaper to replace the windshield than the heater core-not an easy job, but you can bypass it if you can get away with no heat temporally.
A way to check if windshield is leaking, take it to someone who has air compressor. Have someone sit in car while other person sprays air pressure at suspect areas and listen for air leak.
SOURCE: I have a 2003 acura mdx, which has water on the
1 of 2 things it can be heater core going out put your hand on floor while its wet if its like sticky it's bad heater core # 2 water is leaking under cowl where fresh air vents are which they are located where your wipers attach onto the arms.
SOURCE: I have a 2003 acura mdx, which has water on the
While either of the solutions may be correct (unless someone lives in Florida or somewhere their using A/C in January, unlike Wendel), the main problem most likely causing the wet carpet is a clogged evap/heater box drain. You can usually crawl under the vehicle and locate the drain on the passenger side lower firewall. It is usually a rubber elbow that points downward and gets clogged with debris and slime over time. If it's a heater core you can feel the anti-freeze between your thumb and two fingers (it feels like a light oil and then sticky as stated earlier, but should now be on your driveway). If it's water and your using A/C everything should be normal. If it's water and winter, you have bad seals or debris holding open your vent inlets just under the windshield (this might show up better by noticing difficulty getting the vehicle to warm or defrost windshields in fair amount of time and even the smell of other vehicle's exhust fumes when you have the system set to recirculate air). This is not usually an exciting repair.
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