Constant Heat

	Blazer Forum Classifieds Photo Gallery Search Contact BF Sponsors
Blazer News Member List Forum FAQ Timeslips Recalls TSBs Calendars Register Login

Constant Heat

Printable Version

Blazer Forums >> Mechanical & Maintenance >> General Tech Help >> 2nd Gen (1995-2005) Tech >> Constant Heat

Page: [1]

Message

<< Older Topic Newer Topic >>

Constant Heat - 7/4/2008 11:04:46 PM

jman_08

Posts: 47
Joined: 8/10/2007
Status: offline

My Aunt has a 2003 Blazer which she noticed today while she was driving she was getting excessivly hot. I found the source when driving there is constant heat blowing out of the floor vents even when the dial is set to the off posistion. When u stop turn the vents on or A/C it is greatly reduced or stops blowing all together. It only blows pretty hard when driving fast on the Interstate but can still be felt a bit at a standstill.

What should i do from here??

Thanks.

Post #: 1

RE: Constant Heat - 7/5/2008 5:47:15 PM

swartlkk

Posts: 13750
Joined: 5/1/2005
From: Waterloo, NY
Status: online

Sounds like the temperature door isn''t closing and is allowing outside air to flow through the heater core...

_____________________________

Kyle-

2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to jman_08)

Post #: 2

RE: Constant Heat - 7/6/2008 12:42:42 PM

jman_08

Posts: 47
Joined: 8/10/2007
Status: offline

Is there a quick fix for this?

(in reply to jman_08)

Post #: 3

RE: Constant Heat - 7/8/2008 3:48:10 PM

RCarp48

Posts: 68
Joined: 12/25/2006
Status: offline

I have the same problem, went to get it checked out just a week ago by my mechanic in fact. Positive its your door not closing. I got my A/C charged and checked for leaks and all of that. I have a bad door on mine and its a 2000. The motor for it burned out. The motor is 100 bucks plus and the labor fee will be atleast a couple hundred. Its located deep in your dash and in order to reach it your whole entire dash has to come out just to replace a tiny motor the size of your palm. I told my mechanic **** it ill live without it for that cost. No easy fix there

(in reply to jman_08)

Post #: 4

RE: Constant Heat - 7/9/2008 7:19:46 PM

tkf5651

Posts: 117
Joined: 4/27/2008
Status: offline

Actually, you can do this all through the glove department. Your mechanic either likes your money, or doesnt know what he is talking about. I did it tonight on my parts truck and it took literally 30 minutes, I garentee I could do the whole process again in 5-10 minutes after figuring it all out. All you have to do is pull off the glove box, remove the hose and swivel the vac unit to the drivers side, use a 7/32 socket and turn it with your hands to pull off the two screws in the actuator unit, lift it upwards, and you are done. Installation is the opposite. My only complaint is you have very little room to work in there, and if you have big hands, you will be all nicked up from the rough plastic pieces everywhere

. If you are mechanically inclined, go pull one from a junkyard yourself, otherwize, pay someone else to do it for you, it cant be that expensive.

_____________________________

1997 GMC Jimmy - 4DR 4WD 128k -DD
1998 GMC Jimmy - 2DR 4WD 100k - Parting out - http://www.blazerforum.com/m_165395/tm.htm
Leaking fluids all over CNY.

(in reply to RCarp48)

Post #: 5