Skip the auto shop - Our mechanics make house calls

Q: Leak from under dash

asked by on

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

A: Hello. It is likely the heater core causing...

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Q: Low brake pad warning on - 2010 Land Rover LR4

The brake pad warning circuit simply looks at a closed circuit when the sensor is in tact. When the pads wear through the sensor, an open circuit is created. All the instrument cluster is looking for is an open circuit....

Q: Heat not working on passenger side. Jeep Grand Cherokee

Hi there - these events are most likely not at all related. The lack of heat on the passenger side only is an issue with the controls or actuators for the heater "air blend doors". These are the air-routing mechanisms...

Q: Fuses keep blowing out

If the fuse keeps blowing, it is indicating a short circuit in the taillight wiring. The trunk lid wiring to the lights are also on the same circuit; this is where the wiring flexes can bend and, over time, break,...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.