post #1 of Old 01-29-2010, 05:49 PM Thread Starter
WSTOF7
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Sick Of Being Cold!!!!!!!!!

ok i have a 92 jeep yj 2.5 its my dd the heat barely works in it it has a new water pump and i high temp thermostat im thinking about replacing the heater core etc with replacement stock parts but first i want to know how well the stock heating system in these things works in perfect operating condition and if theres any modifications i can do to make it work better or an aftermarket heater or something that would give me better heat all i can find is a blazer heater motor swap but apparently thats onlyt for 91s and under i drive it in temps of up to -50 and it just sucks any info would be greatly appreciated and any tips for keeping warm in a yj would be greatly appreciated too

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post #2 of Old 01-29-2010, 06:25 PM
timatoe
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The stock heating system is very effective. I'd suggest you pull the hoses going to the core and flush the system first.

The "Blazer" upgrade, may not have any affect on your system, because at some time in '92 (I believe) they went to the bigger motor stock. The Blazer motor and the YJ replacement motor are one in the same PM-102.

Here's bunch of good stuff about heater systems from the FAQ..... http://www.jeepforum.com/forum/f12/y...6/#post8107902

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post #3 of Old 01-29-2010, 06:29 PM
PrinothPro
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Check your cable. I brought new blower upgrade, new tstat, radiator, heater core and even water pump before I discovered the cable that control the heat was binding real bad. I fixed that and the heat blows real hot like it never has in years. I didn't even need to buy all of that parts. At least I have those parts ready to go in case any of those parts croaked.

Just check everything and fixing heater is really easy, just pain in the *** to remove and put it back together.
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post #4 of Old 01-29-2010, 06:30 PM Thread Starter
WSTOF7
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could i just shove the end of a pressure washer in the hose that leads to it or would that be too much? how do itell if i have the good heater motor? apparently its an early build 92. cant find this anywhere else on the forum
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post #5 of Old 01-29-2010, 06:31 PM
Mean Max
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Quote:
Originally Posted by PrinothPro View Post
Check your cable. I brought new blower upgrade, new tstat, radiator, heater core and even water pump before I discovered the cable that control the heat was binding real bad. I fixed that and the heat blows real hot like it never has in years. I didn't even need to buy all of that parts. At least I have those parts ready to go in case any of those parts croaked.

Just check everything and fixing heater is really easy, just pain in the *** to remove and put it back together.
Blend door in full COLD position.


Blend door in full HOT position.


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post #6 of Old 01-29-2010, 06:32 PM Thread Starter
WSTOF7
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like the cable that hooks to that loop under the dash?
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post #7 of Old 01-29-2010, 06:33 PM
Mean Max
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like the cable that hooks to that loop under the dash?
Yep, it runs the blend door.

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Max has a picture of every Jeep part ever made.
Quote:
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No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
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post #8 of Old 01-29-2010, 06:34 PM Thread Starter
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cables works fine
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post #9 of Old 01-29-2010, 06:35 PM
Mean Max
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Here's a blend door pic I stole from another thread!

http://www.jeepforum.com/forum/f12/heater-core-219329/


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Max has a picture of every Jeep part ever made.
Quote:
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No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
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post #10 of Old 01-29-2010, 06:39 PM Thread Starter
WSTOF7
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so can i just disconnect the heater hoses and flush it out with a pressure washer?
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post #11 of Old 01-29-2010, 06:41 PM
Mean Max
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so can i just disconnect the heater hoses and flush it out with a pressure washer?
I wouldn't use any kind of pressure beyond garden hose pressure if it were me.

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Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
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post #12 of Old 01-29-2010, 07:13 PM
timatoe
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Quote:
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I wouldn't use any kind of pressure beyond garden hose pressure if it were me.

Max
X's2, I'm pretty sure if you use a pressure washer, you WILL be replacing the core.

Quote:
Originally Posted by George Orwell
We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm.
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post #13 of Old 01-29-2010, 07:35 PM
MJMPC
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At -50 I dont think any STOCK jeep will kep you warm.

MIKE

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post #14 of Old 01-29-2010, 07:40 PM Thread Starter
WSTOF7
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flushed the heater core slight improvement but it still sucks how do i find out if i have the good heater motor? i was thinking about getting one of those auxiliary heaters from canadian tire and mounting it between the seats does anybody have any ideas?
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post #15 of Old 01-29-2010, 07:46 PM Thread Starter
WSTOF7
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they look like the heaters in a school bus run off engine coolant
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