85 442 sensors

sldwys

Greasemonkey
Nov 21, 2020
134
28
Trying to identify these two sensors on driver side of manifold.

Also, where can I buy new pig tails for said sensors. TIA
 

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69hurstolds

Geezer
Supporting Member
Jan 2, 2006
5,288
113
The inner is your coolant temperature gage sensor. The outer is the ECM coolant sensor.


The ECM sensor connector originally was the round, whitish squeeze clip style with the single pin connector. That sensor is GM#25036092, and is available some places as Standard Motor Products TX1.
sensor-temperatura-refrigerante-century-regal-25036092-1984-D_NQ_NP_879919-MLV28340803863_102018-O.jpg


The connector for this gem is GM#12014843
NOS-OEM-Genuine-12014843-Coolant-Temp-Sensor-Connector.jpg



If you want the updated ECM sensor and connector, you will need PT169, GM#12101899 for the sensor connector. The sensor itself is GM#12146312.

51aZqu1WiiL._SX425_.jpg

s-l640.jpg




For the coolant gage stuff, if you need it, you will need ACDelco #PT110, GM #12085488 for the sensor connector and ACDelco #213-69 or GM#25036628 for the sensor (with gages) itself.
ado-pt110_gy.jpg


35-100.JPG
 
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69hurstolds

Geezer
Supporting Member
Jan 2, 2006
5,288
113
Under closer review, you already have the original junk in there. The yellow single pin clip on your ECM sensor is there, but it appears there's been some repair attempt on it for whatever reason. I'd probably update that if you're leaving the ECM in there for a while. Once you get the new engine in there, you probably won't be using the ECM anyway.
 

sldwys

Greasemonkey
Thread starter
Nov 21, 2020
134
28
Thanks for the info. I had already ordered the temp sensor from summit. It shows it working the the Vin 9. Just need to get a pigtail.

I assume the pig tail you gave me will work for the temp sensor I already bought? Excuse my ignorance, I’m still learning all this. I do have a manual on the way to help.
 

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sldwys

Greasemonkey
Thread starter
Nov 21, 2020
134
28
Thanks. One last question. The temp sensor I bought was just the temp gage sensor, right? I now need a new ECM sensor since I’m replacing both?
 

69hurstolds

Geezer
Supporting Member
Jan 2, 2006
5,288
113
They're both technically coolant temperature sensors. Confusing I know. The inside one with the green wires is for the gage on the dash. The one you bought is the outer one, is dedicated only for the ECM. That's the latest part number showing for the sensor 19189478. The ECM basically looks at this sensor for coolant temperature if it's ABOVE or BELOW the fully warmed up temperature. I forget off hand what it needs to be. I think it's 170, but I could be wrong on that. If it's above, the ECM can go to closed loop if all other parameters say it's good to do so. PT169, GM#12101899 for the sensor connector for the one you bought.

The sensor for the gages (inside one next to water outlet) is the ACDelco #213-69 or GM#25036628. It probably has some yellow paint on top of it if original. Why, who knows. The green wired plug you have should swap right over to it. If it does not or if the wires are broken, a new plug connector is ACDelco #PT110, GM #12085488 should fix you up if you need one.
 
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