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  #1  
Old 02-08-2010, 02:56 PM
jrsbike jrsbike is offline
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Default Heater Blows Too Hot!

I have the world's best heater. It blows hot hot hot. In fact it even blows hot when the AC is on. I get no cooling at all. Is this a thermostat problem?
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Old 02-08-2010, 03:52 PM
FireRanger FireRanger is offline
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Are you saying that it blows full hot air regardless of what you have the temperature knob set for?

Year/make/model might help too?
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Old 02-08-2010, 04:29 PM
jrsbike jrsbike is offline
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Sorry for the lack of info. I am new and haven't loaded up my data yet.
I have a 97 5spd 4cly 2WD short bed that I picked up to modify and have fun with.
The heater control and fan nobs work fine at regulating flow and direction, but the hot is extremely hot. Even at low it can get too warm and I have to crack the window. When I switch to AC there is no change; it still comes out hot even thou its set on AC. Most threads are about folks not getting enough heat; I have the opposite problem.
Thanks.
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Old 02-08-2010, 04:33 PM
mossyoak03 mossyoak03 is offline
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probably just needs to be recharged
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Last edited by mossyoak03; 02-08-2010 at 04:35 PM.
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Old 02-08-2010, 04:35 PM
mossyoak03 mossyoak03 is offline
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double post!!!!
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Old 02-08-2010, 05:07 PM
Johnbaum13 Johnbaum13 is offline
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Uh, recharging isn't gonna make the hot air go away. It might make the a/c work better, but the a/c isn't designed to overpower the heater. I'm guessing a cracked vacuum hose under the dash, not closing the blend door all the way.
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Last edited by Johnbaum13; 02-08-2010 at 05:16 PM.
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Old 02-08-2010, 05:09 PM
mossyoak03 mossyoak03 is offline
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Quote:
Originally Posted by Johnbaum13 View Post
Uh, recharging isn't gonna make the hot air go away. I'm guessing a cracked vacuum hose under the dash, not closing the blend door all the way.
mine was doing the same thing recharged the a/c and it works again. your looking into it to much. if it doesn't recharge then he has other problems. id rather do a job i can do by myself than wasting the money and paying someone else to do it.
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Old 02-08-2010, 05:10 PM
mb128 mb128 is offline
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will that work on a 95 as well? i need to do that
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Old 02-08-2010, 05:12 PM
FireRanger FireRanger is offline
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Its impossible for it to be "too hot". The engine coolant is 190 degrees (give or take 10). There is no way to make the heat get "too hot".

What you are experiencing is a blend door problem. It controls how much air passes through the heater core. The actuators have a tendency to break and result in the door being stuck in full heat.
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  #10  
Old 02-08-2010, 05:16 PM
greyghost greyghost is offline
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here's a free blend door fix.
http://www.blenddoorfix.netfirms.com/
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  #11  
Old 02-09-2010, 04:14 PM
jrsbike jrsbike is offline
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Thanks for all the advice. Time to roll on and get the toy running.
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  #12  
Old 07-24-2010, 10:20 AM
davidjsouth davidjsouth is offline
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Default Re: Heater Blows Too Hot!

Quote:
Originally Posted by mossyoak03 View Post
I understand all this, and that's what the directions say, except I can't get the quick connect to snap onto the low side valve.

I have a 1992 Model. Is this a problem as a result?

Help please.
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  #13  
Old 07-24-2010, 10:44 AM
davidjsouth davidjsouth is offline
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Default Re: Heater Blows Too Hot!

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Originally Posted by davidjsouth View Post
I understand all this, and that's what the directions say, except I can't get the quick connect to snap onto the low side valve.

I have a 1992 Model. Is this a problem as a result?

Help please.
Is there an adapter for older models or do I need to take it some where to be serviced?
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