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Discussion Starter #1
Last night I noticed my heater is not working all that good. It will get "warm" but not very warm if that makes since. I would describe it as luke warm. The truck gets up to normal running temp but the heater acts like the truck is not warmed up at all. I had no problems with it last year.

Thanks in advance

Glen
 

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you didnt happen to install a 180 thermostat since last year did you? i know that that will keep your heat down a bit. you could also get a reverse flush of your rad system. it could blow out any crap from your core
 

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Discussion Starter #4
On 2005-12-07 15:03, robike wrote:
you didnt happen to install a 180 thermostat since last year did you? i know that that will keep your heat down a bit. you could also get a reverse flush of your rad system. it could blow out any crap from your core

Nope I have not switched to the 180 t-stat yet. I did buy one but havent installed it. Truck warms up like normal the heater just not pump out decent hot air.
 

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any smell of antifreeze? if not i'll bet your heater core is gunked up... flush it. if so, core has crapped.
now that i think about it a little more, maybe you have a vac leak somewhere. are your controls working right? defrost when set to defrost, ac when ac etc.?
 

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Your thermostat could be stuck open.
 

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Discussion Starter #7
On 2005-12-07 15:42, robike wrote:
any smell of antifreeze? if not i'll bet your heater core is gunked up... flush it. if so, core has crapped.
now that i think about it a little more, maybe you have a vac leak somewhere. are your controls working right? defrost when set to defrost, ac when ac etc.?

No smell of antifreeze. Controls work fine. How do I flush the heater core?
 

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you could pull your heater hoses and hook a hose up to it and basically blow it out. you should probobly buy a kit from autozone or just bring it to a reliable shop
 
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