Is occasional sloshing sound normal when heat is on?

HogMedia · Oct 20, 2022

I noticed when I turned the heat on my 2013 Prius so I could sleep in it that there is this occasional sloshing liquidy sound coming from seemingly around the dash. Is this something I should be worried about?

ChapmanF · Oct 20, 2022

There could be some air in the cooling system. What level do you see in the engine coolant reservoir? Has the coolant ever been changed?

Is occasional sloshing sound normal when heat is on?

HogMedia New Member

ChapmanF Senior Member

Noisy chain sound after you put in new timing chain tensioner

Causes of occasional hesitation?

Hybrid battery going bad (P0A80) and occasional weirdness - where to buy the internal modules

2010Prius- AC would occasionally stop blowing cold air (Issue in Servo? Evaporator? or Amplifier?)

Very scary noisy vibration on a cold start...occasionally

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Is occasional sloshing sound normal when heat is on?

HogMedia New Member

ChapmanF Senior Member

Noisy chain sound after you put in new timing chain tensioner

Causes of occasional hesitation?

Hybrid battery going bad (P0A80) and occasional weirdness - where to buy the internal modules

2010Prius- AC would occasionally stop blowing cold air (Issue in Servo? Evaporator? or Amplifier?)

Very scary noisy vibration on a cold start...occasionally