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Author Topic: no heat problems  (Read 5593 times)

Offline jamiebarnesjr3

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no heat problems
« on: January 05, 2010, 08:30:52 am »
ok heres the deal i kno someone swapped out my switch where i adjust my heat an all cuz it has ac on it an my truck did not come with ac. any how when i put it on ac something blows out of my main vent like a fan blowing that i havent found yet but its not heat. an when i put my heat on the blower comes on under the hood but all i got is defrosters nomatter wat i do or swith on this thing. anyone know why this is ?. second it takes for ever to get heat in this thing to im running a 160 thermo with a 4 core radiater i drive like 45 mins before my heat even gets warm
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Offline 4x4orbust

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Re: no heat problems
« Reply #1 on: January 05, 2010, 09:12:37 am »
as far as the no heat, your heater core may be plugged up, not allowing a lot of heat transfer.    you can flush the heater core out and see if that helps.   
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1982 chevy K-10 SWB, 355 th350/np208. 2.5"lift, 33" swampers, headers/duals,  current project

Offline Prong

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Re: no heat problems
« Reply #2 on: January 05, 2010, 04:49:50 pm »
Change your thermostat to a 195 degree. My SB truck needs a 195 to make heat with that big 4 core radiator in there.
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Offline Captkaos

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Re: no heat problems
« Reply #3 on: January 05, 2010, 05:52:48 pm »
Why are you running a 160 T-stat?
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Offline eventhorizon66

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Re: no heat problems
« Reply #4 on: January 05, 2010, 06:25:51 pm »
Switch to at least a 180 thermostat.  There is really no reason to run a 160 on the street.

As far only getting defrost, you need to pull off your glovebox and check the defroster/temp door cable.
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Offline VileZambonie

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Re: no heat problems
« Reply #5 on: January 05, 2010, 07:00:37 pm »
Take a pic of your heater box in the engine compartment and one of your heater control switch so we can see what you're dealing with since it's a tampered system. I agree on a 195° T-stat. Is the vacuum hose hooked up to the vacuum reserve cannister and is there a supply of manifold vacuum to it?
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Offline 305chevy c-10

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Re: no heat problems
« Reply #6 on: January 11, 2010, 09:20:32 pm »
yeah im having no heat problem too....mine just blows cold air and make a loud noise .....i gave up ........cant figure it out ...........hope u figure urs out no heat is a bommer ...i drive 30 minute in the cold
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Offline Irish_Alley

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Re: no heat problems
« Reply #7 on: January 12, 2010, 02:32:12 am »
im thinking air  ;D
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