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Old 09-20-09, 02:39 PM   #1
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Default rear differential temp sensor

so i snapped mine while changing the rear diff oil.

there was actually 2 nuts there, 1 for the sensor seat, 1 for the actual sensor. i removed the actual sensor since i only had a 19mm deepsocket and nothing fit the other nut. while re-tightening it per 60nm torque spec i guess they were referring to the second nut and not the actual sensor.

anyone know the part number for the temp sensor,
also whats the size socket for the main nut that goes into the differential where the sensor sits. i tried a 21mm as the largest size i had and that didn't fit.


Last edited by Boris; 03-01-12 at 02:47 PM.
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Old 09-20-09, 03:13 PM   #2
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Default Re: rear differential temp sensor

On the gd it's a 30mm nut, but I'm not sure if the gr one is the same.
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Old 09-21-09, 03:17 AM   #3
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Default Re: rear differential temp sensor

30mm, hmm. it seemed like the 21mm was just a bit small id guess of hand 22 or 24 mm would fit. though its hard to tell since its so recessed
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Old 09-21-09, 09:02 AM   #4
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Default Re: rear differential temp sensor

ouch 140 bucks for this thing, that's an expensive mistake.

any with a GR that can confirm the larger nut size for this thing?
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Old 04-02-10, 05:28 PM   #5
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Default Re: rear differential temp sensor

Throw me in the "snapped sensor" club. I am soooo pissed!! Oh well, live and learn. Anyone know the torque specs for that sensor? My service manual said 44.3 ft/lbs but I am living proof that is WRONG!!! I did not even get close to 44.3 ft/lbs before I felt $120 slip through my hands.

Last edited by k38s; 04-02-10 at 05:35 PM.
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Old 04-02-10, 05:56 PM   #6
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Default Re: rear differential temp sensor

Mine has a paint mark across the sensor to the housing (form the factory). I was about to snap it too I think before I chickened out of tightening it to spec. So I just lined it up to that piant mark..
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Old 05-22-10, 07:45 PM   #7
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Default Re: rear differential temp sensor

I'm glad I'm not the only one that did this, I felt like a complete idiot today. I also didn't have a deep 22mm to get to the larger drain plug so I used the 19 to get the sensor out and when I put it back in I was also torquing to the wrong spec apparently because it snapped really easy

Luckily I found a plug to put in place of the sensor until I buy a new one. I guess I'll have the rear diff temp light staring at me for a while
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Old 05-22-10, 09:50 PM   #8
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Default Re: rear differential temp sensor

German specs: goodntight
or strip it out and then back it out half a turn
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Old 06-28-10, 08:40 AM   #9
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Default Re: rear differential temp sensor

I fell into the same trap. Gonna see if I can glue it back together :/
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Old 06-28-10, 10:23 AM   #10
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Default Re: rear differential temp sensor

Quote:
Originally Posted by FBall203 View Post
I fell into the same trap. Gonna see if I can glue it back together :/
They should have made a note in the specs that the sensor requires way less torque than the bolts. Hopefully you can glue yours back together...mine shattered into a bunch of pieces
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