Multi-function Temp Sensor...

Phil Rose pjrose at
Tue Feb 15 09:17:57 EST 2005

At 2:59 PM -0800 2/14/05, Derek Pulvino wrote:
>Hey gang,
>Has anybody else had one of these go out in less than 2-months?  I 
>replaced the part on my car late December/early January and I'm 
>already getting the coolant warning light coming on in the computer 
>display.  I checked under the hood  and noticed that the coolant 
>level is going down a little

  So did you top up the coolant level? Sometimes "a little" coolant 
loss is all it takes for the level sensor to sound the alert. My car 
happens to tolerate a considerable amount of coolant loss compared to 
some others (the sensor ignores a low level to at least 1/2" below 
the mark). So last week, when the warning light began to come on,  I 
was sure the MFTS had gone bad again. But no--this time it _was_ 
actually the coolant level. That was the first ever (in 6 years) that 
I'd had a real "low coolant level" situation, and about 16 ounces of 
coolant took care of it. Now I just need to figure out where it's 

>  and there is also coolant residue on the outside of the sensor. 
>Checked tightness and it was ok.

Have you removed or "disabled" the MFTS's rubber boot? If not, 
perhaps the MFTS contacts are wet or corroded.



Phil Rose
Rochester, NY
mailto:pjrose at

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