How hard is it to change out the heater core? - Impala Tech
Heating & Cooling Heating, cooling & air conditioning

 
LinkBack Thread Tools
post #1 of 7 (permalink) Old 01-17-2006, 09:39 PM Thread Starter
 
 
Join Date: Jan 2006
Location: Las Vegas
Posts: 1
 
How hard is it to change out the heater core?

67 Impala went to 230 degrees before turning it off today. After cooling radiator was half empty. The night before I noticed that the windows were fogging with the heater on and, Doh!, I never thought that it might be rad fluid!

Anyway, I'm thinking its a cracked core. I haven't went looking under the hood to see how the core is accessed. Is this an under the dash job or under the hood job? And is there any step by step instructions I can download?
tnadr is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 01-17-2006, 10:55 PM
Moderator
 
Join Date: Jan 2006
Posts: 10,742
 
Cool Heater Core

Need to consult with a Chilton's manual. Though your best bet is to buy all the GM manuals on a single CD (has Electrical, Assembly manual (tells how they installed heater cores on assembly line) as well as the service manual; that tells the technician how to change out a heater core).

From memory '77 up are under hood, but '76 down is under dash. It isn't hard to work under the dash if you’re a boneless octopus with the ability to see in the dark and have incredible dexterity.

Good Luck
Big Dave
Big Dave is offline  
post #3 of 7 (permalink) Old 03-28-2007, 02:07 AM
Member
 
Join Date: Mar 2007
Location: Glendale AZ
Posts: 86
Blog Entries: 2
 
core

hey bud. i believe the heater box and all have to come out. I haven not changed mine but i have my whole box out as im redoing my 68. i looked at the possiblities and the core is in behind the firewall. Pull the unit from under the dash. BTW i have a only a heater car non ac. hope i helped you
68impalacustom396 is offline  
post #4 of 7 (permalink) Old 03-24-2008, 01:14 AM
 
 
Join Date: Jul 2007
Location: Auburn Wa
Posts: 24
 
which heater hose goes where?

Where does the line from the intake go top or bottom on the heater core?
ericp is offline  
post #5 of 7 (permalink) Old 10-20-2008, 10:53 PM
Ken
 
 
Join Date: Mar 2008
Location: ny
Posts: 6
 
Heater Core

Any luck changing your heater core? I too have a 1967 that sprung a leak and was hoping you can offer some insight how you did yours. It looks like the box is accessible from under the hood, but I didnt look too hard yet. I dont have AC.

Thanks.
Ken is offline  
post #6 of 7 (permalink) Old 10-21-2008, 12:44 AM
Senior Member
 
Join Date: Sep 2006
Location: Santee, SC
Posts: 960
 
Intake goes to the top
dgwar is offline  
post #7 of 7 (permalink) Old 10-22-2008, 11:31 AM
Senior Member
 
Join Date: Jun 2008
Location: Near Chicago
Posts: 703
 
You just have to pull the heater box off of the firewall. If you don't have AC it's pretty easy. Once you remove the nuts from the studs you'll have to pry the box off since the sealer will be bonded to the cover. Go easy so you don't bend it up. Heater core will be right there.
1968 Caprice 396 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Impala Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome