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-   -   I need heater help (https://67-72chevytrucks.com/vboard/showthread.php?t=111864)

70ChevyLongbed 07-15-2004 03:11 PM

I need heater help
 
My heater blows heat into the cab... all the time. I have messed with the controls, which are broken off and behind the dash, and nothing stops the hot air altogether... it just blows less. Is there a way to disconnect/block off/stop the heater? The hoses in the engine compartment are new, but I haven't done anything with the heater or the controls. I don't have A/C and I won't need heat for 5 months or more, but with summer pushing temps into the 90's... I'm baking in there. :devil: Any help would be appreciated.

Oh yeah... I don't think this makes a difference, but here's a little more background...

The PO told me there was a problem with the heater controls so he wired in a toggle switch to turn the fan on and off. This past winter I realized that there was just as much heat coming from the dash area with or without the fan on. I disconnected the switch because it was wired directly to the battery and I was sure I would leave it on and drain the battery.

1971c30 07-15-2004 03:17 PM

heat
 
I had the same problem. The baffles inside the ducting work are probably broken. All i did was reroute the water away from the heater core. It is a quick and easy fix. Just loop the hot water directly back to the radiator.

70ChevyLongbed 07-15-2004 03:28 PM

Thanks for the quick response! :D

Does that cause the motor to run hotter?

68 Suburban 07-15-2004 03:42 PM

There is a valve you can buy at the auto parts store that fits in your heater hoses. It cost about $9.95. You can turn your heat off for the summer, and on for the winter.

stelth2002 07-15-2004 05:26 PM

LOLLOLOLOOOOOOOoo i quickly came up with the solution as chris described.

busterwivell 07-15-2004 05:35 PM

Chris' idea is a good one, just be sure you stop the water before the core for best results, instead of after.

grayw0lf 07-15-2004 05:57 PM

I have the exact same problem. Also have a toggle switch for the fan control. I just bypassed the heater core.

70ChevyLongbed 07-16-2004 08:39 AM

Thanks Guys!

roadking 07-16-2004 10:25 AM

can anyone post a pic. of a clean bypass for summer driving.

ACES 07-16-2004 11:09 AM

bypass valve
 
I'm not positive that this is what they are talking about, but here is what was on my truck when I bought it: (top left)


http://www.myoldtruck.com/photopost/...hoto_2-med.JPG


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