Heater hose restricter - Ford Truck Enthusiasts Forums

Notices
6.2L V8 Discuss the 6.2L V8

Heater hose restricter

Reply

 
 
 
  #1  
Old 11-16-2011, 12:38 PM
hydmech
hydmech is offline
New User
Thread Starter
Join Date: Jul 2008
Location: Washington state
Posts: 22
hydmech is starting off with a positive reputation.
Heater hose restricter

I have a 2011 f350 with the 6.2l gas. The problem I am having is the truck blows cold air at an idle. I installed a greaser in the back that you tap into the heater hoses to circulate hot water thru to keep the grease flowing in the cold temps. If I rev the engine up just a little i.e. 1000rpm or so, It has nice hot air. I have bled this and really run the heck out of it trying to make sure its not air bound. There is a restricter in one of the heater hoses from the factory. Im wondering if I should pull this out? any thoughts on this problem?
 
Reply With Quote
  #2  
Old 11-16-2011, 02:30 PM
mwsF250
mwsF250 is offline
Postmaster
Join Date: Jun 2008
Location: Wayyy NoCal, USA
Posts: 2,564
mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.
How about moving the grease heater plumbing to the return line out of the heater core? It sounds like it is currently in the input line.
 
Reply With Quote
  #3  
Old 11-16-2011, 03:08 PM
hydmech
hydmech is offline
New User
Thread Starter
Join Date: Jul 2008
Location: Washington state
Posts: 22
hydmech is starting off with a positive reputation.
Well I have been doing some further testing. I did move the line to both the input and output of the heater core. I also took out the restrictor and put a clear piece of hose so I could actually see what was happpening. I found that when the engine is idling there is practically no flow thru the hoses. Im guessing that it just doesnt have enough omph to push the water?
 
Reply With Quote
  #4  
Old 11-16-2011, 05:55 PM
mwsF250
mwsF250 is offline
Postmaster
Join Date: Jun 2008
Location: Wayyy NoCal, USA
Posts: 2,564
mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.mwsF250 has a great reputation on FTE.
That could be.... water pump flow is rpm dependent. Surprising it is that low, but if it is, it is.
 
Reply With Quote
  #5  
Old 11-26-2011, 07:20 PM
hydmech
hydmech is offline
New User
Thread Starter
Join Date: Jul 2008
Location: Washington state
Posts: 22
hydmech is starting off with a positive reputation.
Well I actually stuck A flow meter in the hose to see what the actual numbers were..The stock setup it flows 9 gpm at 3000 rpm and less than 1 gpm at idle. I hooked up the grease unit and got 7gpm at 3000rpm and nothing at idle. So I guess there is just to much restriction to be able to do this. So now Im going to try a 12 volt pump and see how that works....The other interesting thing about this is I have done this on a ton of older fords i.e. 2010 and back..never had this problem!..other chevy brands too. Its almost like they detuned the water pump or something..
 
Reply With Quote
  #6  
Old 11-26-2011, 11:27 PM
Kajtek1's Avatar
Kajtek1
Kajtek1 is offline
Postmaster
Join Date: Apr 2006
Location: CA Bay Area
Posts: 3,524
Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.Kajtek1 has a very good reputation on FTE.
The minimal flow at idle from main water pump is normal.
Because of that all Mercedes cars in last 40 years are equipped with auxiliary water pump that circulate coolant via heater core regardless the engine speed.
I had that pump fail on my car one time and I could feel colder air at stop lights even in 50F winter.
If that bugs you so much, why don't you add this pump to your truck? With some extra wiring you can run the pump and blower with engine off -using engine heat for cabin comfort for about 1/2 hr after engine shut down.
 
Reply With Quote
  #7  
Old 11-27-2011, 10:13 AM
rwilimo
rwilimo is online now
Posting Guru
Join Date: Aug 2005
Location: NJ
Posts: 1,159
rwilimo is gaining momentum as a positive member of FTE.
I think your on the right track with the electric water pump, I work on Limousines for a living and we use these to improve rear heat performance, they work great.
 
Reply With Quote
  #8  
Old 11-27-2011, 11:12 AM
powerstroke72's Avatar
powerstroke72
powerstroke72 is offline
Super Moderator
Join Date: Oct 2005
Location: SW Virginia
Posts: 24,275
powerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputation
Moved to the 6.2L V8 forum.
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
superman7928
1987 - 1996 F150 & Larger F-Series Trucks
6
01-30-2015 03:08 PM
HMAN1055
1997-2006 Expedition & Navigator
13
12-15-2014 11:44 AM
Greywolf
1997 - 2003 F150
17
12-04-2014 07:36 PM
dfox912
Ranger & B-Series
2
12-04-2014 08:49 AM
jagger blaze
1997 - 2003 F150
8
11-18-2014 09:40 PM


Thread Tools
Search this Thread
Quick Reply: Heater hose restricter


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: