No HEAT!
#1
No HEAT!
Learned today that the heat in my '91 F150 XLT 4x4 doesn't work. Is it just the heater core or possibly something else? I don't like throwing random parts at the truck until it is fixed. How hard is it to replace the core in these trucks? Do you have to remove the whole dash or can you get to it from the glove box? Any tips would be appreciated!
#2
Join Date: Nov 2006
Location: Memphis, TN 38135, USA, Earth
Posts: 5,495
Likes: 0
Received 7 Likes
on
7 Posts
What engine? Are the heater hoses connected to the core? Is the coolant topped up? Factory A/C? Do you hear the blend door moving as you slide the temperature control? Does it feel like it's swinging a door?
. .
Changing the heater core on '80-96 trucks is slightly harder than changing a headlight bulb.
.
. .
Changing the heater core on '80-96 trucks is slightly harder than changing a headlight bulb.
.
#3
What engine? Are the heater hoses connected to the core? Is the coolant topped up? Factory A/C? Do you hear the blend door moving as you slide the temperature control? Does it feel like it's swinging a door?
. .
Changing the heater core on '80-96 trucks is slightly harder than changing a headlight bulb.
.
. .
Changing the heater core on '80-96 trucks is slightly harder than changing a headlight bulb.
.
#4
You can hear the door that Steve's talking about when you move it from cold to hot, etc. If you hear that, then it's most likely the connection (hoses) to the heat core or the core itself. I was reading around online before and thought I saw something where you can switch the 2 hoses (at the core) and it will push and debris out of the core that might be cloggin it up. I've never had this problem, but I believe in researching something just in case I do have the problem haha. I'm going to go look and see if I can find that caption that explains the hoses thing.
Ha, I'm loosing it. I read that in this thread! Wow. I amaze myself sometimes hahahaha Steve's captions will explain it to you.
Ha, I'm loosing it. I read that in this thread! Wow. I amaze myself sometimes hahahaha Steve's captions will explain it to you.
#6
#7
Thanks
Last edited by Kevo1028; 12-06-2010 at 04:22 PM.
Trending Topics
#10
#12
Changed the thermostat this weekend, the one previous owner put in was upset down! Truck finally makes it to the normal on the gauge. Next weekend planning on the heater core as it must have a leak cause I see where the previous owner put in a way to block the fluid from getting to the core. Anyways, thanks for the help...
#13
chances are if the fluid is topped off and everything else is running right they probably bypassed the heater core. check and make sure the hoses are running from the water pump to the firewall. could be something simple as that. also a lot of guys install a stopper in line of the heater core hose like they did on my truck. if yours has one make sure its open. a lot of the southern state guys do that to block off all the heater to prevent the cab from getting hotter than it needs to during the summer.