Skip the auto shop - Our mechanics make house calls

Q: I found a small puddle of coolant underneath my car. Today I opened the hood, and I see a puddle of coolant.

asked by on

I opened the hood and found a puddle of coolant sitting on something that sits underneath the engine. I suspect it's a leak from somewhere near the engine. The coolant doesn't leak from the reservoir tank, but near the engine. My reservoir tank constantly gets Low on fluid. When I turn the AC on my engine or plastic cover over the engine trembles and vibrates horribly. What's going on?

My car has 108000 miles.
My car has an automatic transmission.

Hello, thanks for writing in. If you are finding puddles of coolant underneath your vehicle then there is likely a coolant leak somewhere on the engine. A few places that leaks can occur at are at the hoses, the water outlets, the water pump, and at the intake manifold. The most common, and usually simplest to service being the water outlets. I would carefully inspect the engine to see if you can determine where the leak may be coming form and go from there. In regards to your engine cover vibrating, it may be possible that the cover is loose and needs to be torqued down. If it does not use hardware to mount, then it may be possible that the mounting cushions are worn. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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!
  • Home
  • Questions
  • I found a small puddle of coolant underneath my car. Today I opened the hood, and I see a puddle of coolant.

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: Fluid leaking onto garage floor

Ford does have a TSB (technical service bulletin) out for a faulty pressure control solenoid depending on the production date of your vehicle. This will cause harsh shifting to occur and may not necessarily illuminate the transmission light or log...

Q: Front windshield wipers do not work--washers still work, fuse is good 2010 Dodge Nitro

Hi - the sudden nature of this failure would suggest a fuse or other electrical link, but you have checked the obvious. Further diagnosis is needed to determine which component in the electrical power chain has failed - switch, electrical...

Q: My engine dies when idling if I don't give it gas

Hey there, thank you for asking about your 2007 Honda CR-V. This is a common issue on many cars and is often times related to what is called an idle air control module. This module regulates the air flow into...

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...
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...
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...