What Are Common Causes of AC Leaks?

August 12, 2021

Unless you've spilled a water bottle or dragged in wet shoes from rain or snow, a wet floor in your vehicle may be a sign of an A/C leak. Air conditioning leaks can happen for numerous reasons, and it's critical to address them right away to avoid serious (and expensive) restorations. 

 

CLOGGED EVAPORATOR DRAIN

Condensation and water can flow out of your car through an evaporator drain. Don't worry - we want this to happen! With usage over time, this drain can get blocked by dirt or debris. Similar to water in a stopped-up sink, the condensation from your A/C can get backed up. Once the evaporator core floods, the moisture will go right through to the A/C vents. Voila - you will get puddles. It would be best if you had a professional unclog this drain ASAP because it can damage electrical A/C components like the resistor.

 

FAULTY SEALS

If the plastic or rubber seals in your air conditioning system break, water can easily seep out of your vents. If this is the issue, the pooling will take place near the passenger side floor mats.

 

DAMAGED EVAPORATOR CORE

An evaporator core slightly looks like a radiator. Your evaporator core can rust if exposed to foreign materials. If you notice a musty odor coming from the vents when you start to blast the A/C, you're probably getting a whiff of those rotting contaminants in your evaporator core. You will need to replace this vital part.

 

Once your automotive A/C issue is diagnosed and fixed, be sure to clean up the water in the cabin and dry off your floor mats. We guarantee you'll want strong car A/C for the remainder of summer. At Elite Auto Experts, our expert team is always willing to help! For all your vehicle A/C needs, please give us a call or visit our shop today!

Why a Check Engine Light Scan Is Not the Same as a Real Professional Engine Diagnostic | Elite Auto
April 30, 2026
Elite Auto Experts in Houston, TX, explains why a check engine light scan is not the same as a true engine diagnostic.
By moufidr02-8941-websiteredesign April 13, 2026
If your car won’t start or struggles to turn on, it’s a clear sign that something is wrong—and it’s not something you want to ignore. Starting issues can be inconsistent and frustrating, especially when your vehicle works one moment and fails the next.
April 5, 2026
If your car’s AC blows cold air while you’re driving but turns warm when you stop at a red light or sit in traffic, it’s a clear sign that your AC system isn’t functioning properly. In a city like Houston, where heat and humidity are intense, this issue can quickly become more than just uncomfortable—it can make your daily drive unbearable.
6 Car Problems That Get Worse in Hot Weather | Elite Auto Experts
March 27, 2026
Elite Auto Experts in Houston, TX, explains six car problems that often get worse in hot weather and how to spot early signs.
How Often Should You Rotate Your Tires? | Elite Auto Experts
February 27, 2026
Elite Auto Experts in Houston, TX, explains when to rotate tires and the signs uneven wear means it’s overdue.
7 Problems Computer Diagnostics Can Catch Before They Get Serious | Elite Auto Experts
January 30, 2026
Elite Auto Experts in Houston, TX, explains seven problems computer diagnostics can catch early before they turn into expensive breakdowns.
What Are the Different Types of Steering Systems in Vehicles Today | Elite Auto Experts
December 19, 2025
Elite Auto Experts in Houston, TX, outlines the main types of modern steering systems and how each design affects road feel and reliability.
How to Choose The Best Repair Shop For Your Fleet Vehicle Needs | Elite Auto Experts
November 28, 2025
Elite Auto Experts in Houston, TX, shares tips for finding a dependable repair shop to keep your fleet vehicles on the road and in good shape.
November 25, 2025
Thanksgiving is all about food, family, and long drives. Whether you're heading across Texas to visit loved ones or just going out of town for the weekend, your car needs to be ready for the road—because the only thing that should break down this holiday is the turkey, not your vehicle.
Engine Feels Like It's Moving Too Much? It Might Be the Mounts | Elite Auto Experts
October 31, 2025
Elite Auto Experts in Houston, TX, shares how excess engine movement may point to broken mounts and what symptoms to watch for.