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

Welcome to the Tahoe Forum - Chevy Tahoe Forum.
Register to remove these ads.


Technical Discussions This forum is for technical discussions related to customizing your Tahoe/Yukon



Reply
 
Thread Tools Display Modes
Old 12-05-2008, 09:15 AM   #1
Bobby
Tahoeforum Noob
 
Join Date: Dec 2008
Location: NY
Posts: 4
Bobby is on a distinguished road
Default 2001 Chevy Tahoe Heat Problem


Register to remove these ads. It's free!
Hi Guys,
I'm new here.

2001 Tahoe, the front heater blows a little hot air when the car warms up and then blows cold air. The rear heat seems to work fine. I changed my blower resistor over the summer. Any suggestions.

Thanks
Bobby
Bobby is offline   Reply With Quote
Old 12-05-2008, 09:25 AM   #2
oneradride
Full Access Member
 
oneradride's Avatar
 
Join Date: Mar 2008
Location: Omaha
Posts: 266
oneradride is on a distinguished road
Default

The first thing I ask myself or anyone else when something stops working is….. What did you change?
Sounds like you already have it figured out. I would start there.
oneradride is offline   Reply With Quote
Old 12-05-2008, 11:21 AM   #3
Bobby
Tahoeforum Noob
 
Join Date: Dec 2008
Location: NY
Posts: 4
Bobby is on a distinguished road
Default

Hi,
I changed blower resistor over the summer. Are you saying that the blower resistor is not good ??
The heater was working few days ago.
When I turn of the heater and put it back on after few minutes, I get hot air for a minute then it gets cooler.


Thanks
Bobby
Bobby is offline   Reply With Quote
Old 12-21-2008, 01:45 AM   #4
GMTECH56
Tahoeforum Noob
 
Join Date: Dec 2008
Posts: 11
GMTECH56 is on a distinguished road
Default

Your blower resistor has nothing to do with oulet temp. I have had a few of these that had the air temp actuator failure, but I would take it to a dealer and have them scan the HVAC module to see if any codes are stored before I started replacing parts.
GMTECH56 is offline   Reply With Quote
Old 02-17-2010, 03:53 PM   #5
grog71
Tahoeforum Noob
 
Join Date: Nov 2007
Posts: 5
grog71 is on a distinguished road
Default

Did you guys ever figure out the problem, I had my 01 front heat blowing cold this morning. But the back was working fine. So after I wated a few hours to take it in for some service it was blowing hot air again. of course the service place could not find any issues. Any suggestions?
grog71 is offline   Reply With Quote
Old 02-17-2010, 04:51 PM   #6
oneradride
Full Access Member
 
oneradride's Avatar
 
Join Date: Mar 2008
Location: Omaha
Posts: 266
oneradride is on a distinguished road
Default

Mine did this about a year ago. I replaced everything including the entire heater controller assembly. STILL didn't work. Finally I removed both lines from he heater core at the fire wall. Back flushed the core with a garden hose and Walla! Hot as hell... been working great every since. 15 minutes and its free... wish I would have started there...... - DB
oneradride is offline   Reply With Quote
Old 11-10-2011, 07:35 PM   #7
thedude337
Tahoeforum Apprentice Member
 
Join Date: Jan 2009
Location: ohio
Posts: 17
thedude337 is on a distinguished road
Default

how many miles on it, these motors are supposed to make 100k before service mine has 150k and has been doing it for a while i did change the coolant and flush the core but it still wont get hot up front ive been throwing around the idea of taking it in and getting it properly flushed. chances are if i hadnt waited so long i could of flushed it myself with success.
thedude337 is offline   Reply With Quote
Old 11-14-2011, 03:48 PM   #8
NJTahoe
Full Access Member
 
NJTahoe's Avatar
 
Join Date: Nov 2011
Location: Central New Jersey
Age: 31
Posts: 62
NJTahoe is on a distinguished road
Default

I just went through it all with the heat this past weekend. I went and had the coolant flushed at pepboys and the heat was working as I drove off from pepboys. The next day no heat. My buddy is a mechanic but lives an hour away so it's not so easy to go over and work on the tahoe with him but I finally made it over there and we flushed the entire system again after the pepboys flush, which was a waste of money if you ask me. We drained everything and went to run the garden hose through the heater core and it was just spitting back in our faces. We ran some water through and it once it came out clean I put in some cooling system flush cleaner and let it run through for a while. I drained it again and started flushing it again and a crap more gunk came out and then the heat started working again! I put some fresh coolant in but another problem now is the Blend Door Actuator. It's not working so i have it disconencted and the heat is working better than ever. I am going to pick up the part in the next day or 2 and put the new actuator on. I really don't car as long as the heat works.
NJTahoe is offline   Reply With Quote
Old 12-17-2011, 12:52 PM   #9
goat364
Tahoeforum Apprentice Member
 
goat364's Avatar
 
Join Date: Jan 2009
Location: Edmonds, Wa
Age: 28
Posts: 27
goat364 is on a distinguished road
Default

Quote:
Originally Posted by oneradride View Post
Mine did this about a year ago. I replaced everything including the entire heater controller assembly. STILL didn't work. Finally I removed both lines from he heater core at the fire wall. Back flushed the core with a garden hose and Walla! Hot as hell... been working great every since. 15 minutes and its free... wish I would have started there...... - DB
When you say yours did this a year ago, did it do the blow hot for a 15-60 seconds then go cold? Because i did a driveway cooling system flush this summer and then found my REAR heat wasn't working this fall. Mine does the... blow hot for under a minute then turns cold. If i shut off the truck and restart it, it blows hot for a few seconds again.
goat364 is offline   Reply With Quote
Old 12-21-2011, 12:14 PM   #10
NJTahoe
Full Access Member
 
NJTahoe's Avatar
 
Join Date: Nov 2011
Location: Central New Jersey
Age: 31
Posts: 62
NJTahoe is on a distinguished road
Default


Register to remove these ads. It's free!
Quote:
Originally Posted by goat364 View Post
When you say yours did this a year ago, did it do the blow hot for a 15-60 seconds then go cold? Because i did a driveway cooling system flush this summer and then found my REAR heat wasn't working this fall. Mine does the... blow hot for under a minute then turns cold. If i shut off the truck and restart it, it blows hot for a few seconds again.
Is there rear heat on all models? I don't have any heat in the rear vents and a buddy of mine told me it's only for the AC. There is a switch to turn the fans on but no thermostat control on the rear switch.
NJTahoe is offline   Reply With Quote
Reply

Bookmarks


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



 
Advertisement

Other Sponsors






All times are GMT -4. The time now is 09:55 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, 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