Can't Find Leak, Only Smell It!

[YukonRog]

We can smell hot coolant on the '05 Yukon when we get out but I'll be darned if I can find any evidence of a leak. The overflow bottle doesn't even appear to drop in level. Can't smell it inside so that kinda rules out the heater core I guess. Kinda like going to the Dr and then it doesn't hurt. Any ideas from the collective minds?

 

[Doubeleive]

well coolant tends to flow down so look up from under the vehicle
use a flashlight to see better and a mirror to see under the water pump, inspect all 6 sides of radiator, heater hose t's, reservoir tank.
place cardboard under the vehicle overnight and check for a wet spot in the morning and look up from there.

 

[YukonRog]

I just found it! Apparently if you let it go long enough it starts to drip! The inboard quik connector for the heater core. I think it would drip and disappear on the exhaust manifold. So can anyone tell me if the two are different or the same part number?

 

[Doubeleive]

I just found it! Apparently if you let it go long enough it starts to drip! The inboard quik connector for the heater core. I think it would drip and disappear on the exhaust manifold. So can anyone tell me if the two are different or the same part number?

 

[Doubeleive]

I would do all 4 of the above, if one is done the rest will follow suit. presuming funds are sufficient, some times we gotta just tackle it as it comes.

 

[YukonRog]

It's the lighter colored one on the right in this picture. I'm on a budget right now, I just replaced the Drag Link on my Ram. I'll replace the leaker now and plan on the others when I can balance things out. The Rotors need replacing next. Darned hill country.

 

[Fless]

Do the attached hose if you can swing it. It'll be easier now than taking it apart again later.

 

[89Suburban]

F these heater tees!!!!!

 

[Joseph Garcia]

I was going to reply to check the Tees, Wear a pair of gloves when changing out the Tees, as the firewall insulation is quite aggressive, and your hands will itch for the next 2 days.