temp gauge sensor p/n? - Chevy Impala SS Forum
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post #1 of 25 (permalink) Old 05-21-2014, 08:32 AM Thread Starter
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temp gauge sensor p/n?

Haven't been able to find it through search...

I busted my temp gauge sensor this weekend and need to replace it. Anyone have a part number or vendor link?

Thanks!

EDIT: Found it on RockAuto, ACDELCO Part # 213928

George

1996 Impala SS - 393, T56, 4.10

1981 Bel Air

Last edited by elsamurai; 05-21-2014 at 08:35 AM.
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post #2 of 25 (permalink) Old 05-21-2014, 10:03 AM
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Quote:
Originally Posted by 1slow96 View Post
Try temp gauge SENDER,not sensor.
It sure seems from this and previous posts that this is a real "pet peeve" for you. Your response here did not even offer the poor guy a part number...very helpful. But I see from his edit, he managed to find what he was looking for even using the incorrect verbiage.

But seriously, this is such a silly thing to get hung up on. If this really bothers you so much, then you better get after the manufacturers to start changing all of their references to this part. Guess what?.....they also use the word SENSOR to describe it....."oh the humanity"

I've even seen it described as such on a GM site...."oh my Lord!!" I have even heard many mechanics, manufacturers and other "Car Guys" use both words to describe these parts. Kind of like Xerox or Copier....Kleenex or Tissue.

Is one more correct than the other? I dunno, but a better question might be....Does it even matter? Look at the verbage and dont shoot the messenger.....

http://shop.advanceautoparts.com/p/a...928/15730286-P

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'95 Caprice SS conversion - Bonny Buckets - 96 Column, Shifter and Console - 3.73 Gear and Herter tune - Z/28 Cluster - Blazer OH Console - Green/Pink bushings - Chromed Impala Wheels - Eibach Springs and Bilstein Shocks - Corvette Engine Dress - the list goes on and still more to do...it never ends.
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post #3 of 25 (permalink) Old 06-05-2014, 04:27 AM
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I'm planning on replacing mine soon.
My gauge isn't reading so I was going to get a new sensor/sender that goes in the water pumping has 3 pins instead of 2 so the gauge and pcm get the same temp.
The parts were the temp sensor for a 96 (I think) camaro with 3.8 v6 and the wire connector for the throttle position sensor for the LT1.
Something you could possibly look into.
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post #4 of 25 (permalink) Old 09-12-2014, 05:08 PM Thread Starter
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Just a correction for the search, the correct temperature sending unit is actually ACDELCO 21377.

George

1996 Impala SS - 393, T56, 4.10

1981 Bel Air
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post #5 of 25 (permalink) Old 05-11-2019, 11:25 AM
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Sensor Confusion

I have a '95 Caprice 9C1 with the 5.7 L and the temperature gauge is telling me that the engine is not reaching operating temperature. I assumed that it was correct so I replaced the thermostat and that did not help. I did some research and learned that the gauge uses a temp sensor mounted on the right head and there is another temp sensor mounted on the water pump that is used by the engine management computer. I removed the connector from the sensor on the head and grounded the wire (it's a single wire) and that pegged the temp gauge so the gauge is probably OK. I want to replace the sensor but I am having trouble finding one. The local auto parts stores tell me they don't list two different coolant temp sensors and the one they sell has two electrical pins. The online auto parts stores list coolant temp switches and sensors for '95 Caprices and there is not enough information about them to tell if they have the part I need. First, are the two sensors interchangeable? Second, is there such a thing as a '95 Caprice with a coolant temp light instead of a coolant temp gauge which would need a coolant temp switch to turn it on? Third, does it matter if the sensor I buy has two pins? Fourth, I see in this thread a part number for a '96 Impala SS and a correction of that part number. I know the instrument panel on a '95 9C1 is different from a '96 Impala SS so the gauge temp sensor may be different so can anybody tell me the GM part number for the sensor I need? I presume I can use the GM part number to cross reference to many brands of sensors each with their own part number. For clarification, AFAIK, a temp switch opens or closes a circuit in response to its temperature and a temp sensor varies the resistance in a circuit in response to its temperature.

Last edited by Frontenac; 05-11-2019 at 12:53 PM.
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post #6 of 25 (permalink) Old 05-11-2019, 02:26 PM
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No response so I kept digging and I will now try to answer my questions. If you are reading this then you probably need this information. First, no, the sensors are not identical. They look identical from the outside and the connectors look identical on the outside except that the sensor on the water pump has two wires and the connectors are different internally so you can't plug in the wrong sensor (good idea, GM). I don't know the answer to my second question. Third, both sensors appear to have two pins. On the temp gauge sensor, only one is used. Fourth, I still don't know the GM part number, but if the picture on Rock Auto for AC Delco part 21377 is correct, that is the correct replacement part. Rock Auto says it will work with both '95 and '96 Caprices and Impala SSs. However, Rock Auto says "The engine temperature signal is used by the engine control module to adjust the air/fuel mixture and ignition timing." about AC Delco part 21377. That describes what the sensor on the water pump does and that sensor has a connector that is different from the picture that Rock Auto shows next to those words, so something is wrong. I searched many vendor websites and made many calls to local auto parts stores and all I got was B. S. and confusing information. I choose to accept Elsamuai's statement that AC Delco 21377 worked on his '96 Impala SS and Rock Auto's statement that this part will work on '95 and '96 Caprices and Impala SSs and I ordered the part from Rock Auto. I hope it works.
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post #7 of 25 (permalink) Old 05-11-2019, 02:42 PM
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post #8 of 25 (permalink) Old 05-11-2019, 02:46 PM
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I hope that it's the correct one for your car. I don't have an LT1 but I try to research things for folks. I did see that the Four Seasons on RA said it was for the guage. (they only had nine left) Some of the other's listed also said that they were two connector but worked for your application. Fingers crossed all goes well for you. Keep your stuff high & dry down there.

Mark: Snowman-33

93 9C1: Work & Cubic Ca$h This started with a new headlight and fender Celeritas In Conficiendo
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post #9 of 25 (permalink) Old 05-11-2019, 03:33 PM
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Quote:
Originally Posted by BALLSS View Post
The picture looks right but the description is all wrong: "The switch is designed using a formed bimetallic contact arm. The bimetal contact movement is achieved using the different expansion rates of two metals fused together. This is a creep action device, provides precise performance
In production, all thermal switches are factory-calibrated to make electrical contact at the specified lower-temperature set point" So this is a switch to turn on a warning light. If the description is correct, this will not work with a gauge. Of course, Rock Auto's description of the one I ordered says it is the wrong sensor, too.
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post #10 of 25 (permalink) Old 05-11-2019, 03:58 PM
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Quote:
Originally Posted by gbhs72 View Post
I hope that it's the correct one for your car. I don't have an LT1 but I try to research things for folks. I did see that the Four Seasons on RA said it was for the guage. (they only had nine left) Some of the other's listed also said that they were two connector but worked for your application. Fingers crossed all goes well for you. Keep your stuff high & dry down there.

Mark: Snowman-33
Yes, Four Seasons 37954 actually says WITH GAUGE (their caps) which sounds like it includes a temperature gauge but it probably means it is FOR (my caps) the temp gauge and the picture of the connector looks right so this would probably be a safe bet if you trust the brand. This morning it was very cloudy and cool. Excellent weather for working in a driveway with no shade. If I could have found the part locally quickly, I could have installed it 7 hours ago. Now I will have to play weather roulette when the UPS van delivers the part next week (or later).
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