anybody had coolant level go back up after being several oz below min level?

[achilleas101]

So this was weird. after i did my oil change, i noticed my coolant level was low. Engine was a little warm but it was below the min level. I decided to let it sit overnight to see how low it got, and sure enough the next morning when the coolant was cold, it had dropped even lower.

This is how it looked the next morning; pen mark is where it was after the oil change.



So i had some G12 coolant around, mixed it with distilled water and filled it up back to just above the min level. Over the next couple days, the level rose and receded as expected staying below the max level after driving around, and receding to the min level by the morning.

Well, today i get my car back from the dealer (had to take it in after - long story short and talked about in another thread - i somehow screwed up and got an o-ring stuck in the throttle flapper or whatever its called at the base of the air intake), and i pop the hood only to see that the coolant reservoir is almost overflowing its so full. I open the cap and it's full to the brim. I turkey basted at least 10 oz of fluid out to bring it back down to the 'max' line.

anybody seen something like that before? i highly doubt the dealer would've added any coolant. i know they do weird stuff sometimes, but that's just not something that would make any sense.

[S4'ed]

I have had a similar experience, but the level did not go as high as yours. Not sure what is going on with this.....but do you have the "water gurgling behind the dash sound" when the car is started up, when cold?

[theweebabyseamus]

I have had a similar experience, but the level did not go as high as yours. Not sure what is going on with this.....but do you have the "water gurgling behind the dash sound" when the car is started up, when cold?

When in doubt, bleed the system again.

[creativecody]

..........i highly doubt the dealer would've added any coolant. i know they do weird stuff sometimes, but that's just not something that would make any sense.

.........Don't "highly doubt" anything with it comes to dealer service techs.......My initial guess was that the dealer topped off your coolant to the brim.

[SwankP3RF3ct10n]

^^^ That's what I'd think too.

[VenturiRS]

I was expecting someone to respond "Yea, after I topped it off" by now. Audizine has changed.

[achilleas101]

I have had a similar experience, but the level did not go as high as yours. Not sure what is going on with this.....but do you have the "water gurgling behind the dash sound" when the car is started up, when cold?

Hm i dont think so but i may uave heard it a few times. For some reason the way you described it sounds familiar.

[jimrobbington]

Sounds like an air bubble trapped, causing coolant to pool somewhere it isn't supposed to stay?

[timzcat]

They clearly topped it off. If there was air it would drop not go up. Obviously they should not have if it was at the min level.

[jygesq]

Dealer topped off coolant, standard practice after oil change.

[Big_Joe]

I had this exact thing happen to me today. Coolant level was always at the proper level, yesterday I heard gurgling. When I shut the car off and now today it’s below min, started the car and revd it upto about 2500 rpm and it started filling up to max again. Let the car sit for 5 hours with the cap off and now it’s low again.