not enough heat (im running outa ideas here)

gingerbreadman · Dec 5, 2004

Ok, its 85 f150 4x4 300 Inline6 on propane...with the high output heater (non a.c.)

I replaced my heater core a month ago cause it was leaking, since then i have had **** pore heat....

I have a mechanicle gauge in it and its running at 180 degrees fairenhieght...

-The foam insulation around the core was old and decreped so I got some closed cell foam and made a nice tight fiting snug insulation around it but that didnt help.
-My temperature flapper is working correclty
-I blew through the new core and it isnt plugged
-my blower motor is blowing strong
-there are no leaks in the heater ducts, I spent most of the day today trying to figure all this out...

is there a inlet and outlet on the heater core????

is 180 degrees not hot enough to expect good heat outa my truck??? it worked fine before this new core...

HELP HELP HELP!!!!!!!!!!!!!

65stanger · Dec 5, 2004

What shape are your hoses going to the core? Are you sure they aren't clogged?

67GTA-FB429 · Dec 5, 2004

180 might not be enough up in BC.

It seems like there would be an inlet and outlet but to what purpose I cannot imagine....

Are you sure that the hot water is flowing to the core? Can you check and feel the core with your hand and see if it gets warm?

gingerbreadman · Dec 5, 2004

65stanger said:
What shape are your hoses going to the core? Are you sure they aren't clogged?

67GTA-FB429 said:
180 might not be enough up in BC.

It seems like there would be an inlet and outlet but to what purpose I cannot imagine....

Are you sure that the hot water is flowing to the core? Can you check and feel the core with your hand and see if it gets warm?

The hoses are not clogged nor is the system, flushed and new coolant a month ago.. both heater hoses and the heater core are hot...

How do I check the flow through the heater hoses???

I could put a 195 thermostate in there but this truck has a tendancy to run too hot in the winter when im in a foot of snow with 4 chains on so I keep the 180 in all year long

what is considered to be overheating??? 200 degrees??? 210????

-gbm-

Trialsguy · Dec 5, 2004

I dont know if the heater and vent assembly is the same as my 97 f250 but I went through the same problem only my just quit getting hot just luke warm. went through heck trying to figure out what was up. Changes the stat, back flushed the heater core..but it ended up being one of my daughters hair braids that had fallen down through the top vent and barely blocked open the cold air vent and I am only talking a 1/4 inch or so. I took the bottom off and looked up in there with a mirror and light and saw it in ther blocking the door, reached up in there and pulled it out and put it back togeather and WALAH! Heat!!

gingerbreadman · Dec 5, 2004

Trialsguy said:
I dont know if the heater and vent assembly is the same as my 97 f250 but I went through the same problem only my just quit getting hot just luke warm. went through heck trying to figure out what was up. Changes the stat, back flushed the heater core..but it ended up being one of my daughters hair braids that had fallen down through the top vent and barely blocked open the cold air vent and I am only talking a 1/4 inch or so. I took the bottom off and looked up in there with a mirror and light and saw it in ther blocking the door, reached up in there and pulled it out and put it back togeather and WALAH! Heat!!

Iv had the entire heater assembly apart both engine compartment and under dash, the temp flap and defrost/heater vent flap are working fine..... theres no leaks anywhere either....

-gbm-

65stanger · Dec 6, 2004

gingerbreadman said:
The hoses are not clogged nor is the system, flushed and new coolant a month ago.. both heater hoses and the heater core are hot...

How do I check the flow through the heater hoses???
-gbm-

If the heater core is getting hot, then you've got good flow thru the hoses.

When you put your new foam insulation in, you may have over done it and blocked the airflow around the heater core.

Got any pix?

gingerbreadman · Dec 6, 2004

65stanger said:
If the heater core is getting hot, then you've got good flow thru the hoses.

When you put your new foam insulation in, you may have over done it and blocked the airflow around the heater core.

Got any pix?

No digi camera since moved outa parents place so no pics.... I didnt block any of the core just the edges like the stock foam did...

-gbm-

2nd Mustang · Dec 6, 2004

I have a 160 degree thermostat and it keeps the temperature at about 170 average with a maximum of 190. My heater never does feel warm enough, just enough to help with defrosting the windshield, but barely. It could be all the small leaks letting in cold air in the interior.

65stanger · Dec 6, 2004

2nd Mustang said:
I have a 160 degree thermostat and it keeps the temperature at about 170 average with a maximum of 190. My heater never does feel warm enough, just enough to help with defrosting the windshield, but barely. It could be all the small leaks letting in cold air in the interior.

GBM try closing your windows!!!

Hack · Dec 6, 2004

gingerbreadman said:
The hoses are not clogged nor is the system, flushed and new coolant a month ago.. both heater hoses and the heater core are hot...

How do I check the flow through the heater hoses???

I could put a 195 thermostate in there but this truck has a tendancy to run too hot in the winter when im in a foot of snow with 4 chains on so I keep the 180 in all year long

what is considered to be overheating??? 200 degrees??? 210????

-gbm-

Overheating is when the thing pukes on you. The coolant will get way over 210. It's a mix of water and ethylene glycol, which raises the boiling temp. It's also pressurized which raises the boiling temp even more.

Now I'm not going to recommend you keep increasing the thermostat until it boils over, but you should really be able to run the factory spec'ed 'stat.

Remember that your engine wears faster when it's cold. It's also less efficient and tends to build up oil residue and carbon much faster. You aren't doing the engine any favors by running a cold thermostat.

pabear89 · Dec 6, 2004

You Have heat thru the hoses and core as you stated.
Only thing left is the air controls,
Recheck that the Flaps are in the correct positions with the
dash controls. I.e. Does it go to Defrost and back to heat (panel or floor)
and Is your exterior vent Closed? (Fresh air setting)
If the box has to draw cabin air it is limited to what it can produce in heat.
As it is recurculating air thru a small opening.

Opening the outside air vent flows more air volume thru the heater core producing more heat.

Just a Thought.

PB

WORTH · Dec 6, 2004

AH HEM,GENTLEMEN, because GBM is such a NOOB he didn't give you the whole story. Since he lives in Canuck Land and it never gets above 30, his engine is running at about 140 degrees , if the dumbass covers part of his radiator like the rest of the Northerners do, he will get plenty of heat

Damn Canuck

67GTA-FB429 · Dec 6, 2004

WORTH said:
AH HEM,GENTLEMEN, because GBM is such a NOOB he didn't give you the whole story. Since he lives in Canuck Land and it never gets above 30, his engine is running at about 140 degrees , if the dumbass covers part of his radiator like the rest of the Northerners do, he will get plenty of heat Damn Canuck

That is a GREAT idea. I had to do that on CJ-5 I had once. It would warm up just enough to move the hot water to the radiator and the cold water inside the block...back and forth, never really warming up.

GBM, put some cardboard across the front of the radiator!! Like WORTH said.

65stanger · Dec 6, 2004

WORTH said:
AH HEM,GENTLEMEN, because GBM is such a NOOB he didn't give you the whole story. Since he lives in Canuck Land and it never gets above 30, his engine is running at about 140 degrees , if the dumbass covers part of his radiator like the rest of the Northerners do, he will get plenty of heat Damn Canuck

Hey, I'm just grateful that he attempted to translate his Gingerbread-French-Canadian into English!

ForceFed70 · Dec 7, 2004

gingerbreadman said:
I could put a 195 thermostate in there but this truck has a tendancy to run too hot in the winter when im in a foot of snow with 4 chains on so I keep the 180 in all year long

what is considered to be overheating??? 200 degrees??? 210????

-gbm-

Put the 195 degree stat in.

Changing the thermostat temp will not have any effect on wether or not a vehicle is going to overheat. The thermostat only controls the temperature of the coolent INSIDE of the motor. The coolent in the radiator will be the same temp no matter what the thermostat is.. When an engine is about to overheat, the thermostat is wide open.. 180* or 195* doesn't make a difference because at 210*(or whenever the coolent begins to boil) they are both wide open...

darkness falls · Dec 7, 2004

Well, my first mustang I went without heat most of the time, IF I wanted heat, I would either take a small heat that you plug into the lighter and stick it under my jacket. It was nice and warmmmm....

65stanger · Dec 8, 2004

darkness falls said:
Well, my first mustang I went without heat most of the time, IF I wanted heat, I would either take a small heat that you plug into the lighter and stick it under my jacket. It was nice and warmmmm....

For most people that might be a good idea.
Problem is with Josh things tend to spontaneously combust and/or explode!

gingerbreadman · Dec 8, 2004

65stanger said:
For most people that might be a good idea.
Problem is with Josh things tend to spontaneously combust and/or explode!

bring on the propane

-gbm-

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