Q: Coolant leaking, engine might be messed up now

asked by on

My 2006 Honda Civic was running fine up until a couple of days ago. I found a puddle of coolant under the car, so I checked under the hood but didn’t see anything leaking. I turned the car on to see if anything was different. The engine was making a really concerning rumbling and after a minute it was running so rough that I had to shut it off. I’m afraid that the engine might not start when I turn the key again and there seems to be coolant leaking from the engine itself! I really need help with this problem as my car is still below 100,000 miles and I can’t afford to trade it in for a new one yet!

You are correct in not wanting to start the car to avoid any further damage. It sounds like you might have coolant leaking into one of the cylinders due to an engine block failure, resulting in a misfire. What needs to be done is to remove the spark plugs and pressurize the cooling system, then have the system inspected under pressure to find the source of the leak. When the technician has determined the source of the leak, action and/or repair can be determined/performed. If the engine block is determined to be the source of the leak, it would be advisable you give Honda a call with your VIN number to see if your car is eligible for the warranty extension on the engine block. Back in late 2010, Honda issued warranty extension number 10-048 for an engine block failure that leaks coolant. To have your vehicle inspected, please contact YourMechanic and one of our certified mechanics will be happy to inspect your coolant system leak.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Coolant leaking, engine might be messed up now

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: If I try to shift my automatic transmission to drive while on a hill it make a loud noise. Is it my transmission mount?

It is very possible that you could be having an issue with your transmission mount. I would recommend having your vehicle inspected by a qualified professional in order to determine if the transmission mount has any free play. Consider YourMechanic...

Q: Hear a knocking noise when car is in gear

It is possible that the recirculation door on your vehicle defaults to a particular setting when the vehicle is in park, and the opposite setting when in gear. This could be due to the fact that more outside air is...

Q: check engine light will not go off

I would try to clear the code first by disconnecting the battery. Make sure you have the radio reset code. Leave the battery disconnected for at least 10 minutes. Reconnect the battery and enter radio code. The Check Engine Light...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...