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  #11  
Old 06-14-2021, 09:59 AM
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Quote:
Originally Posted by andrewwynn View Post
I'm pretty sure OP meant which temp sensor eg the radiator outlet temp but it's the DME that uses a few different inputs to control the aux fan, but that's a moot point.

If the AC ever comes on the aux fan situation is resolved.

You have command of the BLOWER fan speed. If you hit the up button on fan the little bar graph grows and the speed of the blower will rise accordingly if everything is working correctly.

As mentioned, HEAT won't come on when the engine is cold, so something could be confused thinking you are requesting heat even with the snowflake button pressed, so reading of the various temp sensors can help determine what's going on there.

There is surely a flow chart somewhere showing how the blower is regulated from engine temp in heat mode. It sounds like there is something along that line interfering.

Test it this way; cold start set temp to 74 and auto and ac on. See when does the fan kick on: if when the needle on the fake temp gauge leaves the cold zone, it's very likely as I described above.

Drive until fake temp gauge points straight up (means coolant temp between 65-115c), then turn off the car.

Start the car back up, blower should come on immediately as temp will be in the "operational range".

If the symptoms match the description whatever makes the blower not run when heat is called for and engine is cold is almost surely where the fault lies.
I was told a long time ago by a teacher that when you "Assume something" it means "You make an Ass out of me". That is why I don't assume what the poster is trying to post.

Instead of making up "Jargons" that are not known to anyone but the poster, the poster should learn something about what he is trying to post. Oh, that is why he is asking on the forum, then he should just ask about the problem he is having, instead of making up stupid Jargons that no one knows what he is trying to say.
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  #12  
Old 06-14-2021, 10:23 AM
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Probe is quite a well known name for sensor. It's quite ok to use common English to ask questions in English. OP asked effectively "which sensor" regulated the aux fan; answer; "not that simple" then went on to describe a problem with the inside blower motor.
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  #13  
Old 06-14-2021, 11:03 AM
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Quote:
Originally Posted by andrewwynn View Post
Probe is quite a well known name for sensor. It's quite ok to use common English to ask questions in English. OP asked effectively "which sensor" regulated the aux fan; answer; "not that simple" then went on to describe a problem with the inside blower motor.
Maybe in your Universe, but not according to Google or Mr. Webster.
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Audi Avant donated to Kars for Kids
BMW 525IT Sold
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  #14  
Old 06-14-2021, 11:29 AM
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Sometimes you have to look on to the second meaning:



That exactly describes a temp sensor such as the one in the lower radiator hose and yes I did a dictionary lookup before I posted to confirm it was a perfectly acceptable use of the word probe (as I have used all my life).

Probe means sensor as much as preferences means settings. The words are equally interchangeable.

(Of course as a noun not a verb, aliens don't "sensor" people they take in their sleep"). (bwahhaahhaa)
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  #15  
Old 06-14-2021, 11:39 AM
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I'm not the only one on this forum that didn't understand what the OP was trying to say.
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  #16  
Old 06-14-2021, 11:43 AM
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Quote:
Originally Posted by andrewwynn View Post
Sometimes you have to look on to the second meaning:



That exactly describes a temp sensor such as the one in the lower radiator hose and yes I did a dictionary lookup before I posted to confirm it was a perfectly acceptable use of the word probe (as I have used all my life).

Probe means sensor as much as preferences means settings. The words are equally interchangeable.

(Of course as a noun not a verb, aliens don't "sensor" people they take in their sleep"). (bwahhaahhaa)
Why don't you supply a source for your info like I did? As far as I am concern it is fake info.
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  #17  
Old 06-14-2021, 11:45 AM
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Doesn't mean I didn't.

Three was a definite disconnect between aux fan and blower motor talk which is why I brought the blower fan into the discussion.

I will usually try to interpret what is meant by the question so I can save a round of back and forth. I'm correct more often than not and it saves a lot of back and forth just asking somebody to re-ask the same question differently. Once in a while the conversion goes on a tangent into alien abduction but that's ok.
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  #18  
Old 06-14-2021, 11:45 AM
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Quote:
Originally Posted by andrewwynn View Post
Sometimes you have to look on to the second meaning:



That exactly describes a temp sensor such as the one in the lower radiator hose and yes I did a dictionary lookup before I posted to confirm it was a perfectly acceptable use of the word probe (as I have used all my life).

Probe means sensor as much as preferences means settings. The words are equally interchangeable.

(Of course as a noun not a verb, aliens don't "sensor" people they take in their sleep"). (bwahhaahhaa)
No, I don't. The OP should do some research before posting on here about his problem. Or at least use terminology that is germane to the conversation.
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PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
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  #19  
Old 06-14-2021, 12:07 PM
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Originally Posted by upallnight View Post
Why don't you supply a source for your info like I did? As far as I am concern it is fake info.

My source was Siri. She didn't say her source unfortunately. I selected probe on my phone and picked lockup.

Oddly once you tap on a definition the phone doesn't show the source but when I re-did the look up I noticed it does show "new American Oxford" on the main results page before i pick a result.

That said, when I searched online the first three dictionary results I looked at incl Webster, the free dictionary and Cambridge all include the well known meaning of the word.

Probe means sensor sensor means probe. The subtle difference semantically is that a probe implies it's poking into somewhere to sense something inisde vs. more generic sensor (arguably less accurate) makes no implication and could easily be meausuring the outside of something.

Clearly the sensors in question (engine coolant, radiator outlet, inisde air) are all probe versions of sensors (small electrode that pokes into somewhere to measure something inside).

I find it a perfectly acceptable use of the word being more precise than the product name "sensor" and is not confusing at all.
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  #20  
Old 06-14-2021, 12:09 PM
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Originally Posted by upallnight View Post
No, I don't. The OP should do some research before posting on here about his problem. Or at least use terminology that is germane to the conversation.

Which he did. "probe". Bwahhaahhaa. Sorry couldn't resist. Are you telling me you seriously didn't know temperature probe means temperature sensor?
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