Skip the auto shop - Our mechanics make house calls

Q: Plug leaking fluid

asked by on

The freeze plug is leaking coolant or water.

Coolant expansion plugs can leak in two different ways, they either corrode through or the surface between the plug and the block/head surface develops a leak. In either case, however, the plugs cannot be re-used. The coolant expansion plugs must be replaced and installed with a non-hardening sealer. Even though they cost slightly more, brass replacement expansion plugs are recommended as they resist corrosion. You may want to enlist the help of a mechanic, such as one from YourMechanic, who has the tools and the training to install new coolant expansion plugs

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: Air conditioner not working

The radiator on these vehicles are known to spring leaks at the tanks on the radiator. The radiator needs to be replaced. The a/c would need to be checked to see if the problem was related to the radiator leaking...

Q: Coolant leaking

There are a number of places where the coolant may be leaking from such as any one of the radiator hoses going to or from the radiator or motor, the thermostat housing, or the water pump. i would suggest having...

Q: Car starts, dashboard lights flicker, air conditioning shuts off

Hello there, thank you for asking about your 1993 Isuzu Pickup. It sounds like a bad ground in the instrument panel circuit. Looking at the wiring diagram, I see the AC heater control panel and instrument cluster share the same...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.