Q: Leak from under dash

asked by on March 22, 2016

I have a leak coming from under the dash on the passenger's side. I believe it's the heating core.

Hello. It is likely the heater core causing the leak because it is on the passenger side and when they leak the passenger floor becomes wet. It may also be a heater core gasket that is leaking but the heater core itself is the most common cause of leakage. But when the heater core is replaced it is a good idea to replace the gaskets as well, vice versa. I suggest replacing the heater core and the heater core gaskets.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Negative terminal not tightening

If this is the case, replacement terminals are available. The terminal being clean and tight is important. A loose terminal can cause intermittent no start conditions, low battery voltage conditions and can overheat the ground wire. A certified technician can...

I want it to be louder

If louder is your thing, you should talk to someone at a local exhaust shop. I bet they'll have some aftermarket exhaust options for you. Just keep in mind, you may be meeting more of your local law enforcement folks,...

Metal-rubbing noise from back-left tire area

Hey there, thanks for writing in about your 2000 Saturn LS. The ball joint and the lower control arm work together in connection with the alignment of your car. When either of these two components are not working correctly or...

Related articles

How to Buy a Good Quality Heater
In In the dead of winter, when the cold air is nipping at your heels, nothing is better than climbing into a nice, toasty warm car. However, having a heater problem like a heater that blows cold air or leaks...
Understanding the Buick Oil Life System and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Buick Oil Life System indicates when and what service your car needs.
How Do Heated Windows Work?
The The outside of your car’s windows are subject to harsh environmental elements including: Stone chips Road debris Dirt Bird droppings Snow and ice The benefits of heated windows While you can’t prevent environmental elements from occurring,...