Leaking Coolant from Surge Tank

[Trifollower]

2011 Tahoe LT

I am leaking coolant from the surge tank at the bottom from what appears to be an overflow/over pressure type hole?

I noticed some small drops of coolant on the floor of the garage. I went to add coolant to the tank and when I took the cap off coolant leaked from the bottom of the tank. The engine was cold.

I replaced the cap thinking that was it. When I started the truck the next day coolant came out the bottom again but this time it was a lot. It then stopped.

The tank has never been empty and only took about half a quart to fill. The truck as never overheated and the temp stays solid at 210.

Is it possible the tank is bad?

Thanks

 

[Danielescalade]

Anyone got this too? Having this problem and Not knowing to Do.

 

[Foggy]

Tanks are plastic... Our gen trucks are getting old...
Just get a new tank.. They fail (on many vehicles) all the time

 

[Danielescalade]

Thank you for your answer.
Im just wondering why my Reservoir is just two inch under the fill line. When i top this little amount of coolant to the fill line it will leak out on this hole/overflow hole.

 

[Fless]

It's a surge tank, sealed and under pressure with the cooling system. There shouldn't be any open holes.

Pic of said hole?

 

[Danielescalade]

This is the "hole" i meant

 

[Sparksalot]

The tank is easy and cheap to replace. O Reilly or autozone have them in stock.

 

[Danielescalade]

I am located in germany. So not that easy
I will order the reservoir on Amazon or rockauto.
Thanks for your answers

 

[Sparksalot]

I am located in germany. So not that easy
I will order the reservoir on Amazon or rockauto.
Thanks for your answers

Those should work as well.

 

[me88]

I'd skip Amazon for auto parts, they've sent me the wrong stuff way too often. RockAuto is more reliable.