Getting Cold...need Heat

[xumFJ40]

Hey gang,

This may be a stupid question, but....

My heater is not working as I suspect that it should.

I have everything hooked up except the rear heater. Those lines are both blocked off where the rear heater would attach.

When I pull the heater lever on the dash (recently replaced the valve inside of the firewall) the valve opens. When I pull the "air" lever, the fan forces air through the heater box, but it never gets hot...with the truck at operating temp, I would think that the heater should be burning the hair off my legs.

Does the rear heater have to be hooked up for the front to work?

Do I just need to replace the heater core up front?

So...any ideas on this?

Thanks

 

[Romer]

See if this site helps you.

http://rzeppa.org/tech/staywarm.htm

 

[nuclearlemon]

yeah...you pussies and your heat.

 

[IDave]

Do the heater hoses feel warm at all? They should be quite hot when things get to operating temp.

If they are hot, then you probably have need of a core cleaning.

If they are warm or cold, then your problem is either: air in the system (needum burp!), your heater hose valve above the engine is closed, you are missing your top thermostat gasket, or you have a thrombus in your hose somewhere.

 

[IDave]

yeah...you pussies and your heat.

Not everyone was born a Viking. And thank Odin!

 

[Romer]

yeah...you pussies and your heat.

Ummm, who was it who flew first class to Hilton Head!

 

[xumFJ40]

Thanks gang,

I have a new thermostat in there, but cannot remember if I put in a gasket on top. Also, the valve is open, I just replaced it and can watch it actuate. Last, I will check the hose temp to see how hot they are getting.

Great help guys...I will let y'all know.

Oh... and step one from Zepp's site is out, as I don't have a top or doors...makes the heater a little more important....

 

[skyshark186]

Not everyone was born a Viking. And thank Odin!

You mean like driving around town with the bikinni and no doors while its snowing? Its fun, heck i do it just to see peoples faces when they watch me drive by singing to my non existant stereo in a tee shirt.

Speaking of heaters, im gonna rip mine out soon. If anyone needs some small parts(including the host of this thread) please let me know. There yours for shipping if ive still got em intact.

Let us know how you get er fixed.

 

[largenfirm]

You mean like driving around town with the bikinni and no doors while its snowing? Its fun, heck i do it just to see peoples faces when they watch me drive by singing to my non existant stereo in a tee shirt.

Really only counts if you're wearing shorts, sunglasses, and sandals.

Yup, was doing just that on Monday morning, when it was foggy and 36 degrees F.

Kirk

 

[mr_manny]

I thought this pic would be appropriate
I think Treeroot may have Viking blood.

manny 72fj40

 

[PabloCruise]

This has been covered recently on the LCML - search this months archives by topic on birfield.com...

 

[Pinion]

I could sure use the valve against the firewall. Right now, mine is running straight into the heater so I even get heat in the summer.

You mean like driving around town with the bikinni and no doors while its snowing? Its fun, heck i do it just to see peoples faces when they watch me drive by singing to my non existant stereo in a tee shirt.

Speaking of heaters, im gonna rip mine out soon. If anyone needs some small parts(including the host of this thread) please let me know. There yours for shipping if ive still got em intact.

Let us know how you get er fixed.

 

[skyshark186]

I have to get some plugs for the hoses till i can afford my new heater unit. Once i get those ill tear everything out and take some pics, make sure you pm me with what you want so ill remember. Probably tear it down in the next couple days.

 

[poseidon]

Summit racing products did have the mojave? heaters on sale, not sure if the sale is still running or if this will help you out.

E

http://store.summitracing.com/default.asp?target=bestdeals.asp

 

[TexomaFJ40]

Possible clogged heater valve or one where the plunger is stuck in closed position. If you are circulating water, you should have heat. Besttop also makes a heated seat that can be mounted in an FJ with a little bit of modification...it works WELL.

 

[Bad Coco]

JT Outfitters has the valve that fits off the head to the heater hose for about $30. Thats something else you could check, make sure that valve is open

 

[DenverCruiser]

How do you know when the valve is open or closed? I can't tell.

 

[RUSH55]

Not sure about yours, but mine has a pull lever type deal that says on the knob, "PULL FOR HEAT". You could also run spickett-type water valves for your heater hoses inexpensively.

 

[RUSH55]

BTW that knob is under the dash, kind of under where the stock stereo would go.

 

[CruisinGA]

How do you have your rear heater lines blocked off?

They must be blocked seperatly.

I made a brass fitting deal that connected the supply and return (looked cleaner than bolts in hoses). However this allowed for all the coolant to take the easy path through the rr heater bypass and never reach the front heater core.