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Topic: What is this? (Read 1529 times) |
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Kjetil S
Senior Member
2001 BMW 520iat
Posts: 1419
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What is this?
« on: Oct 8th, 2006, 12:30pm » |
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Found this when I replaced a burst coolant pipe:
One of the wires going into it is loose and the other is cracked.
The temp gauge is working normally, so it can't be the temp sensor for that, and iirc the fans should come on at full blast if it was the other temp sensor?
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Simmo
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Re: What is this?
« Reply #1 on: Oct 8th, 2006, 12:41pm » |
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The picture isn't that clear but if the units are side by side then I'm pretty sure it is the temperature sensor for the engine management system. The temp guage sensor only has one wire to it iirc, whereas the 'other one' has two.
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Simmo
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Re: What is this?
« Reply #3 on: Oct 8th, 2006, 1:08pm » |
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I think you'll find that the temperature guage is fed directly from its own sensor. The other one,provides the engine coolant tremperature,and feeds that info to the EECV. If it is not connected properly it is likely to cause problems of fuel consumption or starting as the system presumably doesn't know if the engine is warm or cold.This may help explain its role. Scroll down the page.
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Kjetil S
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2001 BMW 520iat
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Re: What is this?
« Reply #4 on: Oct 8th, 2006, 1:12pm » |
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I knew the part with the temp gauge having it's own sensor (re my first post  ) But if the fans (amongst other things) are controlled by this one, then it might be that they won't come on when needed. (just guessing here)
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mr._floppy
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Re: What is this?
« Reply #5 on: Oct 9th, 2006, 12:23am » |
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It's the temp gauge sender, the one with the push -on rubber cap fixed on to a threaded post.
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Simmo
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Re: What is this?
« Reply #6 on: Oct 9th, 2006, 7:04am » |
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If that's the one your talking about ,rubber cap and a threaded post then it is the temperature guage sender as Mr Floppy says.
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mr._floppy
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Re: What is this?
« Reply #8 on: Oct 9th, 2006, 11:07am » |
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The temp sender only requires one wire, so I don't know what the other one is for 
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TiberiuS
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Ex. 1996 2.3 Ultima - RIP P789 KHJ
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Re: What is this?
« Reply #9 on: Oct 9th, 2006, 11:49am » |
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A clearer picture may help matters
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Kjetil S
Senior Member
2001 BMW 520iat
Posts: 1419
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Re: What is this?
« Reply #10 on: Oct 9th, 2006, 12:42pm » |
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on Oct 9th, 2006, 11:49am, TiberiuS wrote:| A clearer picture may help matters |
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Sorry 'bout that but the macro function on a mobile isn't perfect, to say the least
As far as I can see, it's the only push fit connector directly between the throttle body and alternator.
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RichardMS
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Re: What is this?
« Reply #11 on: Oct 9th, 2006, 12:48pm » |
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Which engine is it 
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Jonnycab
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Former owner of 2.3 Ultima Facelift saloon
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Re: What is this?
« Reply #13 on: Oct 10th, 2006, 12:29am » |
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Looks like the temp guage sender to me as well.
Have you tried pulling off the plug & seeing if the temp gauge still works? 
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