is there any way to improve the heater in the jeep?

[deejay]

The heater in the jeep works fine but it gets in the negatives here in the winter and since the cherokee is so big it takes FOREVER to heat the whole cab is there any upgrades or anything for this like a bigger blower motor or something i was thinking of putting electric heaters in the rear to help but if there is another way i much rather go that way with it

 

[joe_peters]

You could block off part of the radiator to raise the operating (and coolant) temp to get more heat.

Do you have the center console? Is the rear heating tube still in there?

Are you wanting more heat to the passenger area or are you trying to warm up the cargo area, or both?

 

[RCP Phx]

You might check out if you can convert to the late model center console type set-up(it will bake the rear passengers).

 

[deejay]

trying to heat up passengers and the whole cab it does have a center console and lightly blows out heat from there ill take the console apart and make sure its in correct and such i have i high temp thermoast so it doesnt open up tell it gets pretty warm that helped a little but not much has anyone tried the electric heaters that you put under the seats and such if so are they any good?

 

[camarors8992]

Let it warm up for 10 minutes before you take off.

 

[joe_peters]

Ok, check the seals for the rear heat tube. You could consider a stop at Radio Shack to see if they have a small 12v fan you could mount as a rear assist for the tube.

Are you getting good performance from your current heater fan? Does it operate on all speeds?

Tried a cheapo electric rear window defogger once, POS lasted about a month.

If you are going to go the auxilliary electric route, I would recommend looking for something like a sleeper heater for a big truck--more expensive, but better quality.

 

[deejay]

actually if im on the gas the ac and heater bog down and barelly blow anything out and i let it heat up the gauge says about 180 when i take off

 

[deejay]

if anyone has any other suggestions that would be great thanx

 

[themud]

Move to arizona I had to take my doors completely off to cool it down...:sunshine:

Plus cooking breakfast on the sidewalk is sweet in june, july, and august...

themud

 

[joe_peters]

actually if im on the gas the ac and heater bog down and barelly blow anything out and i let it heat up the gauge says about 180 when i take off

This would indicate that you have a vacuum leak. Fix the leak and the reservoir will provide enough vacuum to the accessories when you are on the skinny pedal.

 

[Shorty]

actually if im on the gas the ac and heater bog down and barelly blow anything out and i let it heat up the gauge says about 180 when i take off

check the vacuum line running under the battery tray-- when it develops a crack, you will lose your HVAC controls under acceleration. The result is loss of airflow from the vents when you step on the gas.

There are companies that sell "add on" heaters that can be plumbed into the existing heater hoses, but they are bulky and ugly-- J.C. Whitney used to carry them IIRC.

 

[joe_peters]

check the vacuum line running under the battery tray-- when it develops a crack, you will lose your HVAC controls under acceleration. The result is loss of airflow from the vents when you step on the gas.

There are companies that sell "add on" heaters that can be plumbed into the existing heater hoses, but they are bulky and ugly-- J.C. Whitney used to carry them IIRC.

Had one of those in my FJ40, I think it was factory. Waste, I was living in So. Cal. back then.

 

[ehall]

There used to be electric heaters for CJs dunno if there's anything like that still around

One thing you could do is switch to a 210 thermostat during the winter, that will make the coolant run a little hotter and will result in more heat coming off the core

 

[Jeepm@n]

Best option would be to fix the vacuum leak. The other option would be check into a VW older beetle or bus with the air cooled engine. Those heaters were ok at heating. They ran at 12VDC. Do a resistance check of your blower motor. Also see what voltage you are getting at the plug while on high. It should be close to 12VDC. If not either the switch,relay, or blower motor resistor. The resistor is normally bypassed on high though.

 

[deejay]

awesome ill check the vacuum lines thanx

 

[Shorty]

Had one of those in my FJ40, I think it was factory. Waste, I was living in So. Cal. back then.

I dunno, I had one installed in a step van back in the late eighties and that li'l bastard put out some decent heat-- ugly as a Pacer, but definitely worked fairly well.

 

[joe_peters]

I dunno, I had one installed in a step van back in the late eighties and that li'l bastard put out some decent heat-- ugly as a Pacer, but definitely worked fairly well.

Now don't exaggerate, there is not ANYTHING uglier than a Pacer! :laugh2:

 

[tbburg]

There was a kit for the military jeeps for extreme cold weather that used an auxiliary heater installed behind the front seats. It consisted of a second heater core mounted in a box with it's own fan, and an extended line set.

There's also this little beauty from Quadratec. It's made to replace the heater system in CJs when you strip the dash. It's also plumbed in to the engine coolant.
http://www.quadratec.com/products/92060_100.htm
you could mount one in back.

If you're handy with tools, you could make something like this with a heater core, some aluminum, and an old blower fan.

Big passenger vans have the same problem and they use the 2nd heater in back to solve it from the factory. I've also seen it in Expeditions.

 

[-96JeepSpeed-]

My heater gets so damn hot i cant put my fingers in front of the vents for more then like 30secs, and my xj runs at around 200*.

 

[j33pownr]

Is it possible that your heater core is partially blocked not allowing the heater core to get up to temperature even though the block/radiator is?