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#4603861 - 12/14/17 08:14 PM Where is the oil temperature sensor on Tahoe?
yugrus Offline


Registered: 04/06/04
Posts: 438
Loc: ON, Canada
I searched Identifix and couldn't find out where does the engine oil temperature reading is coming from. I can get it on Scangauge and my Maxidas scanner, but I can't figure out where the sensor is. Is it bundled with oil level sensor?
5.3L 2014
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'14 Chevrolet Tahoe
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#4603899 - 12/14/17 08:51 PM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: yugrus
Is it bundled with oil level sensor?


That would be my first guess.

See if the dealer has one one the shelf (not likely) -
memorize it's image (take a picture)
then find where it is on the engine
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#4603928 - 12/14/17 09:22 PM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
rollinpete Offline


Registered: 03/20/17
Posts: 458
Loc: West Ma.
Here's what it looks like...


https://www.rockauto.com/en/catalog/chevrolet,2014,tahoe,5.3l+v8,3305712,engine,oil+temperature+sender,5704


Edited by rollinpete (12/14/17 09:28 PM)
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Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive183k miles
Last Change;
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Fram xg8a, Fram CA8141

(Oil) Where would we be with out it?


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#4603936 - 12/14/17 09:39 PM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
yugrus Offline


Registered: 04/06/04
Posts: 438
Loc: ON, Canada
Thank you Pete, now if I only knew where is it located...
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'14 Chevrolet Tahoe
'15 Mazda CX-5

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#4604048 - 12/15/17 01:19 AM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
KneeGrinder Offline


Registered: 11/28/17
Posts: 221
Loc: North of you Idaho
By looking at the picture, it looks like an in pan sensor. Since the pic does not show how many wires it has, it is unknown if it is bundled with oil level sensor, but that would be my guess.

Googled it, but no hits at all for location of said oil temp sensor. So, you must not have a gauge in vehicle, just the ECU reads it. Your not even supposed to know about it...lol
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#4604083 - 12/15/17 04:48 AM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
yugrus Offline


Registered: 04/06/04
Posts: 438
Loc: ON, Canada
No gauge indeed. The reason for my query is a sort of mystery. I use heater pads on the oil pan and transmission pan. I noticed that no matter how long do I plug in, the oil temp always shows the ambient at the start up. Transmission oil reading is always significantly higher then ambient. After that, engine oil temperature rises about twice as fast as ATF temp, which is to expect.
I thought I had bad heater pad, but no, it works...
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#4604088 - 12/15/17 04:59 AM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
rollinpete Offline


Registered: 03/20/17
Posts: 458
Loc: West Ma.
The only pic i could come up with is this one ,it's not labeled but it looks like # 14, you could look under there in that area...Good luck...

? oil sensor
_________________________
Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive183k miles
Last Change;
Penn. Plat. HM 5w30
Fram xg8a, Fram CA8141

(Oil) Where would we be with out it?


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#4604090 - 12/15/17 05:11 AM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
yugrus Offline


Registered: 04/06/04
Posts: 438
Loc: ON, Canada
Going to put the rig on the hoist tomorrow to see what is going on with the temperature and where everything is.
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'15 Mazda CX-5

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#4604095 - 12/15/17 05:33 AM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
Originally Posted By: yugrus
Thank you Pete, now if I only knew where is it located...


It's Reference# 706


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#4604119 - 12/15/17 06:49 AM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
yugrus Offline


Registered: 04/06/04
Posts: 438
Loc: ON, Canada
No Merk, that is oil pressure sensor...
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#4604938 - 12/15/17 09:30 PM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
KneeGrinder Offline


Registered: 11/28/17
Posts: 221
Loc: North of you Idaho
Originally Posted By: yugrus
No Merk, that is oil pressure sensor...


Correct, that is the pressure sensor. Its the only 'oil' sensor that they show. I don't have Alldata, I just googled it and its the only oil sensor that results hits. That's where it was located, under the manifold. The Temp sensor would most likely not be there. It would prolly be in the pan.
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#4604964 - 12/15/17 10:20 PM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
KneeGrinder Offline


Registered: 11/28/17
Posts: 221
Loc: North of you Idaho
Originally Posted By: yugrus
No gauge indeed. The reason for my query is a sort of mystery. I use heater pads on the oil pan and transmission pan. I noticed that no matter how long do I plug in, the oil temp always shows the ambient at the start up. Transmission oil reading is always significantly higher then ambient. After that, engine oil temperature rises about twice as fast as ATF temp, which is to expect.
I thought I had bad heater pad, but no, it works...


Hmmm, WAG, before you start up, maybe the ECU reads the Ambient "outside" air temp gauge and barometric pressure sensor to map fuel and timing. Does not read oil temp sensor at that time. Just wild guess....you know, technologies and stuff. cough cough

Transmission is a straight hard wire design, gm may use the temp gauge to default its self to limp mode via transmission control module. But the gauge is still of hard wire design.


Edited by KneeGrinder (12/15/17 10:28 PM)
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#4604984 - 12/15/17 10:45 PM Re: Where is the oil temperature sensor on Tahoe? [Re: yugrus]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
Originally Posted By: yugrus
No Merk, that is oil pressure sensor...


From what I gather on the internet, the oil pressure sensor pulls double duty as an oil temperature sensor.

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#4604999 - 12/15/17 11:04 PM Re: Where is the oil temperature sensor on Tahoe? [Re: rollinpete]
KneeGrinder Offline


Registered: 11/28/17
Posts: 221
Loc: North of you Idaho
Originally Posted By: rollinpete
Here's what it looks like...


https://www.rockauto.com/en/catalog/chevrolet,2014,tahoe,5.3l+v8,3305712,engine,oil+temperature+sender,5704


Merk, This is all I was going by. Rock auto lists it as an oil temp sensor, we all know Rock auto is always right!

If you look at the enlarged picture, it looks pretty much like the in pan oil level sensor. Its just a guess at this point.
_________________________
08 Tribeca 82k PUP 5w30 wix
06 Accord Hybrid 131k PUP 5w20 wix
02 Chevy k3500 97k Delvac 1 esp 5w40 wix
00 F350 133k Delvac 1300 15w40 wix

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#4605030 - 12/16/17 12:37 AM Re: Where is the oil temperature sensor on Tahoe? [Re: KneeGrinder]
eyeofthetiger Offline


Registered: 11/18/17
Posts: 683
Loc: South Carolina
Originally Posted By: KneeGrinder
Originally Posted By: rollinpete
Here's what it looks like...


https://www.rockauto.com/en/catalog/chevrolet,2014,tahoe,5.3l+v8,3305712,engine,oil+temperature+sender,5704


Merk, This is all I was going by. Rock auto lists it as an oil temp sensor, we all know Rock auto is always right!

If you look at the enlarged picture, it looks pretty much like the in pan oil level sensor. Its just a guess at this point.


What they are listing as the oil temperature sensor looks exactly like the coolant temperature sensor. Exactly. In fact, I'm not sure there is a dedicated oil temperature sensor on that engine. The reading on the scan tool may be a calculation based on coolant temp and oil pressure.
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