Bubbles in radiator neck after replacing breather hose

[Vander1]

Is this normal?

 

[hemitom]

My thinking.
1. Air in system.
2. Normal flow of coolant from water pump.
3. Slight head gasket leak

 

[MSCH]

depends on if you've drove it far enough to purge any air pockets out of the cooling system would be my guess.

 

[Vander1]

From the fourth cylinder

 

[Gyro Gearloose]

After that many air bubbles came out the radiator thte coolant level should have gone down noticeably, which I didn't see happening. That would indicate
1. Air forced into the coolant system, i.e. headgasket etc.
2. An opportunity for air to be ingested into the system from a hose that feeds from the expansion tank directly into the coolant flow.

 

[Vander1]

After these procedure and after the engine get cool, the level in tank was dropped about one inch.
Is it normal when the thermostat is open to circulate like this?

 

[Kira]

Do the bubbles smell at all like exhaust?

 

[Vander1]

I didn't smell it

 

[MSCH]

After these procedure and after the engine get cool, the level in tank was dropped about one inch.
Is it normal when the thermostat is open to circulate like this?

lets start this out from a fresh point of view.
I am thinking you just changed the coolant
and you are seeing some bubbles in the radiator.

my question is have you driven the vehicle far enough to fully warm up the engine
and rechecked the coolant level
and then drove the car some more in regular service
and have you had any issues?

 

[97prizm]

I'd try and get a coolant test kit to test for exhaust.

 

[Vander1]

I was replaced breather hose which goes from the engine to the throttle body. Yesterday I was driving the car and after parking I saw some coolant under the radiator cap. I suspected the radiator cap. Did this on video today, warmed up the engine nicely and after 2 hours the coolant level was an inch below the mark line in reservoir tank.

 

[Vander1]

I'd try and get a coolant test kit to test for exhaust.

I do not have opportunity to do this.

 

[MSCH]

I do not have opportunity to do this.

don't over think it.. does the vehicle in question have any obvious problem and if not let it be...
it will tell you if it has a problem, I suggest listening to the vehicle instead of listening to the voices in your head.

 

[97prizm]

I had a coolant radiator cap go bad years ago. My car didn't overheat but the coolant gurgled and bubbled when I turned my car off.

 

[Kira]

breather hose which goes from the engine to the throttle body.

Forgive my ignorance, but what is carried to the throttle body from the engine by that hose....coolant?

 

[Vander1]

Yes