Heater/coolant issue? - Ford Truck Enthusiasts Forums

1978 - 1996 Big Bronco  
Sponsored by:
Sponsored by:

Heater/coolant issue?

Thread Tools Search this Thread
Old 04-27-2014, 03:57 PM
Senior User
Thread Starter
Join Date: Jul 2006
Location: east bethel ,mn
Posts: 174
MUDBUCKET is starting off with a positive reputation.
Heater/coolant issue?

Is it possible to have air trapped in the coolant line running to my heater core?
I just replaced my radiator and water pump, thermostat is working and everything is cooling and circulating.However I get no heat, the coolant lines running to and from the heater are cool to the touch with the exception of the few inches of hose near the water pump.
Reply With Quote
Old 04-27-2014, 09:42 PM
greystreak92's Avatar
greystreak92 greystreak92 is offline
Post Fiend
Join Date: Sep 2002
Location: Gateway to the West
Posts: 9,141
greystreak92 has a great reputation on FTE.greystreak92 has a great reputation on FTE.greystreak92 has a great reputation on FTE.greystreak92 has a great reputation on FTE.greystreak92 has a great reputation on FTE.
Absolutely. Typically the heater hoses are the highest point in the cooling system so if air does get in, it will float to the top. You can purge it by disconnecting the hose that DOESN'T get hot when the truck is running (after everything has cooled down). Then lower the end of the hose until coolant begins to run out. Cap the end firmly with a thumb and reconnect it.

I might suggest putting a coolant fill point in the highest hose as a more permanent fix. These are inexpensive and will allow you to purge the system if it traps air again without the PITA of disconnecting a hose. Cooling system fill points are simply a hose connector with the garden hose fitting in-line for filling and flushing. You just have to cut the highest hose at its highest point and put the fitting in line.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
7.3 powerstroke coolant flush and CAT ELC charge Chrismtz5 1999 - 2003 7.3L Power Stroke Diesel 7 06-08-2017 01:59 PM
coolant hose routing questions 3000gtman Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 5 01-28-2017 06:15 PM
Still no heat. Water flow diagram needed. steuspeed Ranchero & 1961 - 1967 Econoline 6 10-30-2016 04:49 PM
Bypass fitting on F350 Radiator- Can I use for coolant filter/heater bypass? My plan is: Fixnstuff Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 3 10-19-2015 07:11 AM
Help... No or little heat JasonGlove 6.0L Power Stroke Diesel 19 08-21-2015 12:33 PM

Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -5. The time now is 01:00 AM.

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.