Go Back   Tahoe Forum - Chevy Tahoe Forum > 2000 - 2006 Chevrolet Tahoe / GMC Yukon / Cadillac Escalade Year Models > General Tahoe/Yukon/Escalade Discussion Forum

Register to remove these ads.
General Tahoe/Yukon/Escalade Discussion Forum General Tahoe/Yukon/Escalade Discussion Forum

Thread Tools Display Modes
Old 12-03-2013, 07:59 PM   #1
Tahoeforum Newcomer
Join Date: Dec 2013
Location: Lake Stevens, WA
Posts: 2
okiyama85 is on a distinguished road
Default 2001 Tahoe Antifreeze Smell

I have a 2001 Tahoe that has antifreeze smell when the heater is engaged. I have flushed the heater core and coolant system but smell still exists. Coolant gets low after a couple months but no noticeable leak on the ground. From research this says that it could be a bad heater core or faulty plastic fittings cracked. Also at times noticed a gurgling sound. Both in/out lines are hot so I know the heater core is not clogged. Before the smell the heater was having issues getting hot. Any ideas? Replace the core? Leak in the fittings?
okiyama85 is offline   Reply With Quote
Old 12-04-2013, 08:06 AM   #2
Full Access Member
IronMan4Real's Avatar
Join Date: Nov 2013
Location: Ontario Canada
Posts: 57
IronMan4Real is on a distinguished road

If a heatercore is bad your windshield will fog up with a slimy coating, or will leak either into the cab or if the necks are leaking then check the firewall under the hoses.
I don't always trust pressure tests because it can cause more damage sometimes if your not prepared to do the repair right away.
Coolant leaks are a B*tch. Tough to find. First check the int cab, then under the hoses. Shampoo the engine well (covering all electronics) or have a professional do it.
Then once 100% dry drive it and park it on a flat parking spot to inspect for leaks while parked over night. If you notice a leak trace it to that area. If not it could be leaking internally like a head gasket. Id also inspect the piss hole on the water pump, all hoses,connections,radiaor,cracked overflow resevoir. Also a chance that the last person who serviced it may never burped the air out.
Coolant issues are pain. My kids hotrod, I replaced 2 thermostats and finally traced to bad t stats. I installed a fail safe and a guage and it has never worked better.
Start with simple stuff. But you need a very clean platform to start with.
If you live in Canada like me and oil the snot out of it like me...will be tough to trace.
Cooling system is simple. Just process of elimination. I do not recommend bars leaks,pucks or any other band aid fix. Those do more harm than good and a bugger to get out when you properly do the repair.
my 2 cents
IronMan4Real is offline   Reply With Quote
Old 12-04-2013, 10:50 AM   #3
Full Access Member
Join Date: Nov 2013
Location: Alaska
Posts: 89
Metaldrgn is on a distinguished road

Don't wash the engine. That can cause so many problems even if you think all the connectors are covered. Especially the knock sensors which you can't get to but water can. There is also an issue with the water pump leaking from the gaskets. Or so I've heard. If you can smell it though... my jeep is having the same issue. If you didn't smell it before and now you do it probably is your heater core. I hate the smell and the heater isn't working as good so I'm going to change mine anyhow.
Metaldrgn is offline   Reply With Quote


coolant leak, heater core

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Other Sponsors

All times are GMT -4. The time now is 06:19 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All rights reserved and copyrighted
Fully Driven Auto Network
GM Truck Forum
Ford Raptor Forum
Dodge Ram Forum
Chevy Cobalt Forum
Chevy Camaro Forum
FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum
TRD Forum
Central US Mopars
Southeast Mopars
Cadillac CTS Forum
Oklahoma Dodge Ram Club
Softball Forum