What do you call this, where do you find it?

What do you call this, where do you find it?
I need to buy the kind of thermostat used to turn on a car's radiator fan (or at least an electric swtich that will close at 120^ F or higher) , and I also need it to use as a sensor a thin tube (2-4 mm) that will go into a radiator or heater hose, between the metal housing and the hose that surrounds it. Am I being clear?
I don't know what words to use to search for specifically this on ebay/amazon/google. Do you know what words capture the "tube" part, and in order to look at non-car parts, the turn-on/close-switch when hot part?
Nor do I know what kind of car used/uses this kind of thermostat. If I had a car make and model and year, I could find one that way. Do you know a car that used such a thermostat.
Originally, I bought one from JCWhitney based on the picture in the catalog, but I sold the car and forgot to remove the thermostat. ;-(
Thanks.
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On 8/22/12 3:26 PM, micky wrote:

You mean one like this ??
http://www.jcwhitney.com/engine-cooling-thermostat-switches/p2000903.jcwx?filterid=j1
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Wow. This is just about perfect. Thanks.
The end of the tube is a lot bigger than the tube itself. Would you put it in the heater hose, the radiator hose, or mount it on the radiator?
**And JCW too. I went through the wholle paper catalog which is still pretty big (not the one they send you when you request one, but the one they include when you buy something) , but didn't look online.
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<snip>

Instructions at http://www.haydenauto.com/Online%20Catalogs-eCatalog/Content.aspx says to mount it on the backside of rad fins using provided mounting hardware
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Wow. Thanks. I love it when there are online instructions.
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BTW, the thermostat I forgot to remove from an earlier car had a rubber thing with a slope on each side and a groove in the middle to hold the tube, so the tube wouldn't be crushed by the hose clamp.
I was goingto do something like that if I put the tube in a radiator hose.
----------
Wow. This is just about perfect. Thanks.
The end of the tube is a lot bigger than the tube itself. Would you put it in the heater hose, the radiator hose, or mount it on the radiator?
**And JCW too. I went through the wholle paper catalog which is still pretty big (not the one they send you when you request one, but the one they include when you buy something) , but didn't look online.

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BTW, the thermostat I forgot to remove from an earlier car had a rubber thing with a slope on each side and a groove in the middle to hold the tube, so the tube wouldn't be crushed by the hose clamp.
I was goingto do something like that if I put the tube in a radiator hose.
----------
Wow. This is just about perfect. Thanks.
The end of the tube is a lot bigger than the tube itself. Would you put it in the heater hose, the radiator hose, or mount it on the radiator?
**And JCW too. I went through the wholle paper catalog which is still pretty big (not the one they send you when you request one, but the one they include when you buy something) , but didn't look online.

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You would think being that it's 2012, all cars would have this by now, but they don't. My 1980 Mercedes has it so that you don't get cold air blowing. It also has a small seperate electric pump for the heater core to get hot water there as fast as possible.
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On Thu, 23 Aug 2012 07:18:22 -0700 (PDT), " snipped-for-privacy@optonline.net"

Last I checked some new cars don't even have buzzers to tell you when you've stopped the engine but not turned off the headlights, even though other cars had that 20+ years ago, and K-Mart sold such a buzzer for $1.50. That's important because without it, you come back to a dead battery. I'm not counting the ones that allow the lights to stay on for a while on purpose.
And t here is something my 2000 Toryota does't have that my '84 and later Chryslers did. For one thing, the driver's door won't open unless it's unlocked. But I think there was something electrical too.
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wrote:

No. Just explain the purpose of the switch and where you want to use it. Then you'll probably get answers.
--
Vic




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On Wed, 22 Aug 2012 15:29:45 -0500, Vic Smith

In the winter, I don't want the heater fan to go on when the engine is cold because cold air will come out of the heater**. So I want to put the sensor in the heater hose and let it turn the fan on when the coolant is reasonably warm.
**OTOH, if I turn the fan off with the switch on the heater/AC control, I'll go days without turning the fan on again, until I finally notice how cold I am.
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micky wrote:

Did not mention how old the car is. Does it have belt driven fan or DC motor driven one?
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wrote:

2000 Toyota. DC motor for the radiator fan, but the fan I'm trying to stop is the heater fan. (also a DC motor.)
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micky wrote:

Then there is 'stat controlling the rad fan. You need separate one? How about using one already there.
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wrote:

Probably. I don't want to wait until the water is hot enough to turn on the radiator fan. It's warm enough to heat the passenger compartment quite a bit before then.
Plus the 12v might come from different places., and not just from the battery, for the two fans. I'll look into that.
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wrote:

I mean: Proably I need a separate one.

I've looked at the wiring diagrams 3 or 4 times, but never before for this purpose.
So I looked again and the radiator fan is powered through the engine main relay and the fan no.1 relay, and then goes to ground. Its thermostat connects to the fan no. 3 relay and is in the midst of a jumble of wires
The heater fan gets power directly from the through the heater relay (one side of which IS connected to the battery) but tts ground wire doesn't go straight to ground. It goes to the "AC blower motor linear controller", and the diagram doesnt' show what's in that.
So I don't know how to use the same thermostat, and I'd be afraid to try. I suspect it can't be done.
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On 8/26/12 3:32 PM, micky wrote:

You need to wire the new switch in series somewhere between the Battery and the "Controller". It will act like another "Heater relay"
Now, as you describe Batt----Fan------------------HtrRelay----Controller---Ground
After Batt----Fan----NewSwitch-----HtrRelay----Controller---Ground
New switch could also go between Batt and Fan if easier to wire; or between HtrRelay and Controller
This way both the NewSw and HtrRelay must be closed for fan to run
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Thanks. Will do.
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