Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 10-31-2012, 07:52 AM
granny_rocket's Avatar
granny_rocket granny_rocket is offline
Senior User
 
Join Date: Oct 2003
Location: North Western New Jersey
Posts: 421
granny_rocket is starting off with a positive reputation.
clogged heater core

is it possible to have a dirty/clogged heater core? I don't mean the internals of the coolant plumbing, I mean the physical radiator fins that the air passes over. It seems as though when I slide the temp selector towards hot the air output decreases to almost nothing. I used to think I was crazy that this truck didn't heat up like my powerstroke until a year later when I went to use the heat out the vents and felt no air output on high. EEEEEK!

On that note, how do you also access the heater core even clean it out? I'm assuming through the cab or can I access it from under the hood? The air conditioner and cold vent settings blow sufficiently. Maybe they're plugged up too but there is a fair amount of air coming through.

Thanks,
Al
__________________
Al C.
'96 F-250 XLT 4x4 Supercab 7.3 Powerstroke; my immaculately clean truck w/ 175,000+ miles
'84 F-150 XLT 4x4 Reg Cab - 302 Gasser (the work beater)
'98 Volkswagen Jetta TDI - my 50 mpg (that's not a typo) commuter car!
Reply With Quote
  #2 (permalink)  
Old 10-31-2012, 08:31 AM
Gary Lewis's Avatar
Gary Lewis Gary Lewis is offline
FTE Chapter Leader
 
Join Date: Jul 2010
Location: Northeast, OK
Posts: 17,354
Gary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud of
Yes, it is very possible to have the heater plugged. I would start by pulling the blower motor and the associated resistor pack and cleaning there. Do that from under the hood, with the motor being the round thing pointing toward the front, and the resistor pack below and to the left when looking from the front. That'll get you into the area where all the debris goes and you can determine how bad it is.
__________________
Rusty: '81 F150 Ranger XLT 4x4 w/a 351M, RV cam, Performer carb & intake, C6, & 3.50's
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads, Weiand intake, Street Demon 750/ZF5/3.50 gears w/Kevlar clutches
Worst fear: I die and my wife sells my trucks for what I've told her I have in them.
Reply With Quote
  #3 (permalink)  
Old 10-31-2012, 10:09 AM
granny_rocket's Avatar
granny_rocket granny_rocket is offline
Senior User
 
Join Date: Oct 2003
Location: North Western New Jersey
Posts: 421
granny_rocket is starting off with a positive reputation.
Thanks Gary! I know what the blower and resistor pack are I cleaned them out as there was quite a bit of pine needles. I then pulled the core cover in the cab open. I think debris is in front of the core. There is definitely more air blowing through on the cold setting.

Thanks!!!
Reply With Quote
  #4 (permalink)  
Old 10-31-2012, 10:19 AM
Gary Lewis's Avatar
Gary Lewis Gary Lewis is offline
FTE Chapter Leader
 
Join Date: Jul 2010
Location: Northeast, OK
Posts: 17,354
Gary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud ofGary Lewis has much to be proud of
Given that you've already cleaned that side once, pulling the motor might not get you to where the clog is. But, it is so easy that's where I would start.
__________________
Rusty: '81 F150 Ranger XLT 4x4 w/a 351M, RV cam, Performer carb & intake, C6, & 3.50's
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads, Weiand intake, Street Demon 750/ZF5/3.50 gears w/Kevlar clutches
Worst fear: I die and my wife sells my trucks for what I've told her I have in them.
Reply With Quote
  #5 (permalink)  
Old 10-31-2012, 11:17 AM
1986F150six 1986F150six is offline
Posting Guru
 
Join Date: Jul 2009
Location: Sheffield, AL
Posts: 2,337
1986F150six has a great reputation on FTE.1986F150six has a great reputation on FTE.1986F150six has a great reputation on FTE.1986F150six has a great reputation on FTE.1986F150six has a great reputation on FTE.
To access the actual heater core, if your truck is equipped with factory A/C, remove the glove compartment door and liner and you will see the black plastic molded piece which is the backside of the heater housing. Simply remove the assorted screws and the cover will come off, revealing the core.

You will then be able to see and touch one side of the core, but to get to the opposite side, you would have to disconnect the two heater hoses and actually remove the core. Honestly, if it was mine and I did not know how long it had been since being replaced, I would consider putting in a new one [~$35-50], since the labor is already done. Just a thought!
Reply With Quote
  #6 (permalink)  
Old 10-31-2012, 12:26 PM
granny_rocket's Avatar
granny_rocket granny_rocket is offline
Senior User
 
Join Date: Oct 2003
Location: North Western New Jersey
Posts: 421
granny_rocket is starting off with a positive reputation.
Quote:
Originally Posted by 1986F150six View Post
To access the actual heater core, if your truck is equipped with factory A/C, remove the glove compartment door and liner and you will see the black plastic molded piece which is the backside of the heater housing. Simply remove the assorted screws and the cover will come off, revealing the core.

You will then be able to see and touch one side of the core, but to get to the opposite side, you would have to disconnect the two heater hoses and actually remove the core. Honestly, if it was mine and I did not know how long it had been since being replaced, I would consider putting in a new one [~$35-50], since the labor is already done. Just a thought!
They're only $50? That's not too bad. Thought they were more for some reason. I redid the entire cooling system (well radiator, hoses and water pump) last year but didn't want to get into the core. I was even thinking of having it recored just as a safety measure while I had the cover off. I think for now I'll wait money is a little tight but for $50 it might be worth it not to get stuck.

Thanks
Reply With Quote
  #7 (permalink)  
Old 10-31-2012, 11:43 PM
joshofalltrades joshofalltrades is offline
Postmaster
 
Join Date: Feb 2011
Posts: 3,513
joshofalltrades has a good reputation on FTE.joshofalltrades has a good reputation on FTE.
and as you're playing with it, you might consider rigging up something to prevent your pine needle problem from happening again. it all comes through that panel between the hood and windshield, so a screen or something there should prevent it from happening again, or at least slow it down a lot

oh, and stop parking under that tree
Reply With Quote
  #8 (permalink)  
Old 11-01-2012, 08:07 AM
aic aic is offline
Senior User
 
Join Date: Apr 2009
Location: St. Louis
Posts: 152
aic is starting off with a positive reputation.
The cowl from a later model truck has small holes instead of the slots, making it harder for junk to get into that area, and they bolt right in!
__________________
1990 F-250 5.8 5 speed 4x4: The workhorse daily driver
1986 F-150 300 NP435 fire road toy
Reply With Quote
Old 11-01-2012, 08:07 AM
Reply

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 05:27 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.2 ©2010, Crawlability, Inc.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup