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Old 09-16-2012, 03:57 PM   #1
edefisio
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Default changed ECTS now temp guage not woorking

I just changed the engine coolant temperature sensor on my 2002 SL2, due to intermittently not starting and based on several posts here. After i changed it, the SES light came on and now the temp guage is not moving at all, though the car did start and seems to be running normal enough. The connector looked to be in good shape, in fact i didn't see any visible problems with the original ects upon removal. Any ideas?

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Old 09-16-2012, 06:27 PM   #2
campus189
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Default Re: changed ECTS now temp guage not woorking

Quote:
Originally Posted by edefisio View Post
I just changed the engine coolant temperature sensor on my 2002 SL2, due to intermittently not starting and based on several posts here. After i changed it, the SES light came on and now the temp guage is not moving at all, though the car did start and seems to be running normal enough. The connector looked to be in good shape, in fact i didn't see any visible problems with the original ects upon removal. Any ideas?
I take it you visually inspected the connector well?
Are the wires spliced or have electrical tape on them?

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Old 09-16-2012, 07:07 PM   #3
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Default Re: changed ECTS now temp guage not woorking

Hi, thanks for the reply...

yes the connector looked fine. no corrosion or anything abnormal.

no electrical tape or signs that it has been replaced before.

The first time I started the car after replacing the sensor, the temp guage pegged all the way to the right for about 15 seconds, then it dropped all the way to the left and the "service engine soon" light came on. and that is where it is stuck at.

is it possible that i got a bad sensor from the auto parts store? I also tried flipping the connector 180 degrees in case that was a problem, and it seemed to snap into place fine, but no change in the gauge.

thanks for any ideas you may have.

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Old 09-16-2012, 08:11 PM   #4
magtec
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Default Re: changed ECTS now temp guage not woorking

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Originally Posted by edefisio View Post
is it possible that i got a bad sensor from the auto parts store?
yeah.

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Old 09-16-2012, 08:15 PM   #5
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Default Re: changed ECTS now temp guage not woorking

could have broke the tip loose from the brass portion of the sensor

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Old 09-17-2012, 07:22 AM   #6
DonP
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Default Re: changed ECTS now temp guage not woorking

You also could have received the wrong sensor (not an ECTS).
The 2002 should have had the brass tip ECTS and that is an unlikely failure.
What codes are set?

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