Martin Riggs
Member
- Joined
- Feb 3, 2017
- Threads
- 4
- Messages
- 47
- Reaction score
- 19
- Location
- NJ
- Vehicle(s)
- 2017 Honda Civic Hatchback EX
Common problem in Civic. Had it in a 2002 Civic LX. Prob something with heater core.
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Hi! Any news regarding the splashing sound? Mine does that too when starting the engine. Coolant is OK, A/C is working properly, I have no idea what can cause it.I took it to another dealer last Saturday. Brought up the issue and pretty much the same thing the mechanic couldn't really duplicate. I did tell him it the A/C water wasn't draining probably. They did find that to be an issue. I can still hear the noise but just not as constant. If other keeps talking about it, then I don't know if it is normal or not?
This.Iāve had the same issue on my 2018 ST hatch.
About a year ago I had a radiator replaced on a Toyota Camry. The shop trapped air in the in the system in the process. The fix for that car was to top off the radiator fluid with the engine cold then idle the car in neutral with the radiator cap off until the engine gets hot enough to open the thermostat. When the thermostat opens, the coolant (and the trapped air) circulates and the air bubbles are released rather than recirculated because the radiator cap is removed. When the bubbles stop, so should the sound. Adding coolant to the reservoir might avoid the need to top off during this process. I would expect a dealer to be able to bleed the system to address this issue more directly, but I didnāt want to incur the cost on the old Camry.
So I have to remove teh air and ... problem solved.This.
The sounds you all are hearing are air pockets in the coolant. Once the car is warm. The coolant expands changes whether you notice it again that day or sporadically.
A low coolant level can cause this but also if the system isnt completely purged of air when being filled (at the factory or otherwise)
Very likely.So I have to remove teh air and ... problem solved.
I'm not sure, but I think you souldn't hear the sound of water when it's not mixed with air... at least not that far away from the driver.I heard this noise too and didn't know what it could be until I watched this animation of the 1.5L engine:
It looks like exhaust manifold is water cooler so possibly when the engine is started we hear the water moving around.