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Heater not working all that good?

676 Views 7 Replies 4 Participants Last post by  robike
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
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.
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.?
Your thermostat could be stuck open.
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?
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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