-
Go Back   Automotive Forums Car Chat > Chevrolet > Blazer > Problem Diagnosis
Register FAQ Social Groups
Problem Diagnosis Got a problem you can't fix? Post here and one of our members will answer as soon as possible.
Reply Show Printable Version Show Printable Version | Subscription Subscribe to this Thread
 
Thread Tools
  #1  
Old 11-02-2007, 07:48 AM
usbhjr usbhjr is offline
AF Newbie
 
Join Date: Jul 2004
Posts: 15
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to usbhjr
Heater Core Question

Last fall I put stop leak in the coolant system because Vapors were coming out of the heat ducts.I added it twice.The vapor leak has stopped but I've noticed a significant drop in the amount of heat.Is that due to a failing heater core?I'm thinking of having a new one put in.Thanks for any input.
Reply With Quote
  #2  
Old 11-02-2007, 09:16 AM
MT-2500's Avatar
MT-2500 MT-2500 is offline
AF - Advisor
 
Join Date: Sep 2005
Posts: 16,690
Thanks: 5
Thanked 122 Times in 121 Posts
Re: Heater Core Question

If it was leaking it is time for a new one.
Stop leak is only a band aid on the problem.
MT
__________________
Remember proper testing gives us the answer to many problems.
MT
Reply With Quote
  #3  
Old 11-02-2007, 02:45 PM
usbhjr usbhjr is offline
AF Newbie
Thread starter
 
Join Date: Jul 2004
Posts: 15
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to usbhjr
Re: Heater Core Question

Thank you for your input.I still get enough heat,but Im sure it's a matter of time and winter is rapidly approaching.
Reply With Quote
  #4  
Old 11-02-2007, 04:24 PM
MT-2500's Avatar
MT-2500 MT-2500 is offline
AF - Advisor
 
Join Date: Sep 2005
Posts: 16,690
Thanks: 5
Thanked 122 Times in 121 Posts
Re: Heater Core Question

Quote:
Originally Posted by usbhjr
Thank you for your input.I still get enough heat,but Im sure it's a matter of time and winter is rapidly approaching.

And if the old green coolant is is bad for your health to breath the fumes off of it.
MT
__________________
Remember proper testing gives us the answer to many problems.
MT
Reply With Quote
  #5  
Old 11-02-2007, 07:14 PM
ericn1300's Avatar
ericn1300 ericn1300 is offline
AF Premium User
 
Join Date: Jun 2005
Posts: 2,068
Thanks: 7
Thanked 27 Times in 27 Posts
Re: Heater Core Question

Stop leak products will inhibit leaks, but will also clog the other coolant passages in the engine. If you do have to replace the heater core bypass it first by it by disconnecting the hoses from the engine and run them together and flush the engine to remove as much of the stop leak as you can, and refill with fresh antifreeze. Lots of post here on how to change it out, less than $50 in parts but a long job. It took me a full six-pack
Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums Car Chat > Chevrolet > Blazer > Problem Diagnosis

Thread Tools

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



All times are GMT -5. The time now is 10:37 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts