Coolant leak, can't pinpoint.

[Rocket Man]

Tees are at RIGHT side of engine near firewall

Exactly. Passenger side.

 

[Larryjb]

...repeated what Mark said

 

[corvette744]

I was having a decent leak, filling the reservoir every few days. I used a radiator stop leak and that fixed it right up for a few months. Now the leak is back, I used the stop leak again and it didnt seem to stop it. Im seeing puddles now, not just little drips.

So, I cant exactly pin point where its coming from, I will have to get underneath it one of these days.

The leak is near the front, so I'm thinking water pump.

Is there a known spot where coolant leaks that I dont know about?

Thanks

You need to at least get under the vehicle and look around we cant diagnose something without a visual.Get a pressure tester and look and you will see it quick.Especially if your seeing puddles now should be easy to spot.

 

[FrankU]

Those Gruven T's are sure expensive, but it gives piece of mind that the plastic T's don't.

Link to Gruven parts :

https://www.gruvenparts.com/billet-gm-heater-core-coolant-tees/

You will need 2.

Those plastic T's are very unreliable and break (leak) often.

 

[Molly454]

I was having a decent leak, filling the reservoir every few days. I used a radiator stop leak and that fixed it right up for a few months. Now the leak is back, I used the stop leak again and it didnt seem to stop it. Im seeing puddles now, not just little drips.

So, I cant exactly pin point where its coming from, I will have to get underneath it one of these days.

The leak is near the front, so I'm thinking water pump.

Is there a known spot where coolant leaks that I dont know about?

Thanks

I just had my battery changed out because it kept going dead after a starter replacement. Turns out it was the rubber boot on the 2 positive cables that was preventing a connection. While under the hood, my young mechanic noticed coolant leaking on top of the block where the heater hose connector screws in. He says they crack often. $10 part.

 

[gooffeyguy]

Those Gruven T's are sure expensive, but it gives piece of mind that the plastic T's don't.

Link to Gruven parts :

https://www.gruvenparts.com/billet-gm-heater-core-coolant-tees/

You will need 2.

Those plastic T's are very unreliable and break (leak) often.

Except for the short pieces of hose and all the hose clamps to connect them. More points of possible failure

Sent from my SM-G930V using Tapatalk

 

[Joseph Garcia]

At the strong recommendations of the folks here, I replaced the Tees with ACDelco Tees, even though they were much more expensive than the Dorman Tees.

 

[Fless]

At the strong recommendations of the folks here, I replaced the Tees with ACDelco Tees, even though they were much more expensive in the short term than the Dorman Tees.

FYP

 

[Doubeleive]

since when are the heater hose T's located in the front?
per op:
"The leak is near the front, so I'm thinking water pump".
yes they are a common point of failure, but a leak in front will likely be from the radiator, water pump, or one of the 2 large hose.

 

[AN292]

Thanks to everyone for the replies. I read them all and will take them all into consideration for when the leak re-appears.

Funny enough the plastic adapter from the heater core in the firewall did infact blow up while I was driving this summer lmao. I replaced both adapters with OEM ones.

Like I said the stop leak ended up working so now I cant really find the leak until it comes back.

Anyway, I found this here, are these any clues to what's going on?

Pictures:

https://imgur.com/a/dthanUG