2011 Tahoe...Clear fluid leak behind passenger side front tire

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Jason in DLH

Cheeseburger and Fries
Joined
Sep 4, 2020
Posts
1,400
Reaction score
1,562
Location
MN
Have you checked the heater hoses for a leak? The clear liquid maybe a complete separate issue from the burning smell. A few years back one of my heater hoses burst while I was driving and a plume of smoke billowed out. I thought my engine was going to explode, but it was just a simple hose fix.
 

Big Mama

Full Access Member
Joined
Jul 21, 2015
Posts
3,035
Reaction score
1,758
Location
Virginia
So the smoke is front left and the water is on the right? Can you describe the smell? Oil smell, coolant smell (which can be kind of sweet). You’d notice the coolant issue more so when you turn the truck off.
 
OP
OP
G

Glancing43

TYF Newbie
Joined
Oct 23, 2020
Posts
16
Reaction score
4
Have you checked the heater hoses for a leak? The clear liquid maybe a complete separate issue from the burning smell. A few years back one of my heater hoses burst while I was driving and a plume of smoke billowed out. I thought my engine was going to explode, but it was just a simple hose fix.
That’s kind of what happened to me at a red light. Thought it was on fire. It runs fine, but smells and smokes after about 30 mins of driving. I could really smell it tonight after going up a steep hill with the heater running.
That could be it, I guess.

I suppose I’ll have to take it in and get it looked at.
 

Jason in DLH

Cheeseburger and Fries
Joined
Sep 4, 2020
Posts
1,400
Reaction score
1,562
Location
MN
If I remember correctly (it’s been a couple years) I believe the hose leaked a bit before it exploded causing intermittent smoking like you’re describing. At the time I simply couldn’t figure it out, but as soon as she blew...
 

Big Mama

Full Access Member
Joined
Jul 21, 2015
Posts
3,035
Reaction score
1,758
Location
Virginia
That’s kind of what happened to me at a red light. Thought it was on fire. It runs fine, but smells and smokes after about 30 mins of driving. I could really smell it tonight after going up a steep hill with the heater running.
That could be it, I guess.

I suppose I’ll have to take it in and get it looked at.

You can check it yourself. Start it, open the hood and look on the side the smoke comes from. If you don’t see it right away let it warm up. If you still don’t see it shut it off and look again. It might be a loose clamp. If it’s a busted hose you can replace it in short order.
 

kbuskill

***CAUTION*** I do my own stunts!
Joined
Mar 11, 2017
Posts
5,213
Reaction score
8,068
Location
NE. FL.
@Glancing43

Most likely culprit is the plastic "quick diaconnects" on the heater hoses at the firewall on the passenger side.

This is what they look like...
rps20201031_233146_160.jpg

And this is what I replaced mine with...
https://www.gruvenparts.com/billet-gm-heater-core-coolant-tees/
rps20201031_233436_535.jpg

Kind of hard to get to but worth it to never have to worry about them cracking and leaking or breaking off again...
rps20201031_233012_192.jpg
 
OP
OP
G

Glancing43

TYF Newbie
Joined
Oct 23, 2020
Posts
16
Reaction score
4
Thanks for the info and suggestions. I appreciate it. Now that it’s cold and we’re running the heat instead of A/C, we can smell it inside the Tahoe BUT only after going up our steep driveway.

I’ve popped the hood as soon as I’ve turned it off and the smoke disappeared so fast, it’s hard to tell. Pretty strange.

But I definitely see it before I pop the hood behind the passenger headlight. In fact at one point, I thought it was the headlight.

Would the firewall connection rattle at high speed if failing? I’ve noticed a slight rattle in the interstate a couple of times. Seems to be close to the dash / firewall.
 

wjburken

Supporting Member
Joined
Dec 26, 2017
Posts
9,705
Reaction score
26,283
Location
Eastern Iowa
Just an update, still getting a smell and about 15 seconds of minimal smoke coming out above the drivers side headlight under the hood on occasion.

But I definitely see it before I pop the hood behind the passenger headlight. In fact at one point, I thought it was the headlight.

Can you clarify which side you are seeing the smoke/steam?
 
OP
OP
G

Glancing43

TYF Newbie
Joined
Oct 23, 2020
Posts
16
Reaction score
4
So the smoke is front left and the water is on the right? Can you describe the smell? Oil smell, coolant smell (which can be kind of sweet). You’d notice the coolant issue more so when you turn the truck off.
Water and smoke are both on the passenger side. The smell isn’t sweet, it smells like something is burning. The smoke comes out above the passenger headlight.

Like earlier in the thread, the gentleman said the A/C drains there behind the passenger side front tire. I think just noticed that because I was looking for it.
 

Forum statistics

Threads
128,782
Posts
1,805,329
Members
91,761
Latest member
AlbertoTahoe2011
Top