Heater blows cold when idiling - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-06-2012, 07:48 AM
Powerstroke.org Rookie
 

Join Date: Dec 2012
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Heater blows cold when idiling

I purchased a 2006 F250 6.0 powerstroke with 12k on original motor. Noticed today that my heater is blowing cold when idiling but blows hot when driving. Any advice here for what I should be looking for or concerned with.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 12-06-2012, 07:55 AM
Chapter Director
 

Join Date: Oct 2007
Location: Gloucester, va
Posts: 1,206
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
first and easiest check is to make sure your coolant level is topped off high enough.
Reply With Quote Quick reply to this message
  #3  
Old 12-06-2012, 08:09 AM
Premium Member
 

Join Date: Jan 2009
Posts: 74
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Or your heater core might be clogged. I think mine is and going to flush cooling system before it gets cold.


Sent from my iPhone using AutoGuide.com App
Reply With Quote Quick reply to this message
  #4  
Old 12-06-2012, 09:21 AM
Vintage Nakamichi Powered
 

Join Date: Sep 2012
Location: Elk Grove, California
Posts: 1,309
Thanks: 9
Thanked 35 Times in 32 Posts
Feedback Score: 0 reviews
Take a look at the heater control valve on top of pass valve cover and make sure its opening completely. Look at it to make sure its fully opening and closing
Reply With Quote Quick reply to this message
  #5  
Old 12-08-2012, 08:37 AM
Compression Ignition Addict
 

Join Date: Apr 2012
Posts: 1,065
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
since the problem is at idle only, as mentioned, more than likely a clogged heater core. can try back flushing. sometimes it works. if not, it would need to be replaced
Reply With Quote Quick reply to this message
  #6  
Old 12-11-2012, 03:48 PM
Powerstroke.org Fanatic
 

Join Date: Jan 2006
Location: berks co. pa.
Posts: 108
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
my 04 has done it for the last 50,000 miles. no heat at idle. rev it to 1200 rpm and the heat would blow hot. i vc9 flushed it. and replaced the thermostat and water pump. still no heat. i have read on the forums that this is a sign of a bad head gasket. i just refused to believe that since my truck was running good and my coolant level never seemed to change.....much. well at 199,000 miles i just got my truck back from the shop yesterday with new head studs installed. it started to feel low on power up the hills and the degas bottle started showing a black slime inside. now my heater kicks out the heat at idle. no more of using gallons of washer fluid to defrost my windshield in the morning. i hope this is not your case. but just thought i'd tell you my story from the past few days. good luck
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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
Display Modes

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



All times are GMT -8. The time now is 03:11 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors