Coolant Temperature Sensor - are there different sizes for different radiators
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Joined: Nov 2010
Posts: 237
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From: WV
Coolant Temperature Sensor - are there different sizes for different radiators
I'm having a problem finding a temperature sensor that fits. I'm hunting down the proper Toyota/Lexus number for my vehicle, but I'm curious if anyone else has had this issue.
So far the ones I've been finding have been too small. I have the larger 27mm radiator. I'm wondering if it is the difference between the 16mm and 27 mm radiator. Any thoughts?
So far the ones I've been finding have been too small. I have the larger 27mm radiator. I'm wondering if it is the difference between the 16mm and 27 mm radiator. Any thoughts?
CL Community Team
Joined: Apr 2001
Posts: 16,533
Likes: 1,379
From: Austin, TX
Excellent advise from fatnoypi.
Thaeleelyr: RX has coolant temp switch and temp sensor. The first one is open/close, the other gives a range of resistance based on the temperature. The switch controls the cooling fans while the sensor gives input to the ECU and the temp gauge.
Salim
Thaeleelyr: RX has coolant temp switch and temp sensor. The first one is open/close, the other gives a range of resistance based on the temperature. The switch controls the cooling fans while the sensor gives input to the ECU and the temp gauge.
Salim
Thread Starter
Pole Position
Joined: Nov 2010
Posts: 237
Likes: 3
From: WV
We should be able to have a discussion about aftermarket parts without getting admonished to get the part from a dealership. People either don't want to go through a dealership or, as in this case, they can't give a definitive answer based on the VIN. If simply calling the dealership elicited all answers through their copious cooperation, there wouldn't be any need for this forum.
I didn't ask about how to go about getting the part, I asked if anyone had experience with different sized sensors based on the radiator size.
I didn't ask about how to go about getting the part, I asked if anyone had experience with different sized sensors based on the radiator size.
Racer
Joined: Nov 2009
Posts: 1,567
Likes: 87
From: NJ
you never asked about aftermarket solutions in your original post. If your radiator is original, the dealer parts counter should be able to locate the proper part based on your VIN and year.
Otherwise you can try ordering from any other aftermarket supplier catalog based on year alone or measuring the sensor bung size and thread pitch.
You still have a probability it will not be calibrated to your ecu going aftermarket, and may affect fuel trims as a result.
Otherwise you can try ordering from any other aftermarket supplier catalog based on year alone or measuring the sensor bung size and thread pitch.
You still have a probability it will not be calibrated to your ecu going aftermarket, and may affect fuel trims as a result.
Lexus Champion
Joined: Nov 2005
Posts: 2,110
Likes: 77
From: OH
Pretty sure the one in the radiator is a "fan switch" and does not feed back info (other than to kick the fans on) to the ecu. I'm wondering if you are buying the other one that is probably located up by the thermostat. I'll see if I can confirm.
What part #'s have you been trying?
What part #'s have you been trying?
CL Community Team
Joined: Apr 2001
Posts: 16,533
Likes: 1,379
From: Austin, TX
We should be able to have a discussion about aftermarket parts without getting admonished to get the part from a dealership. People either don't want to go through a dealership or, as in this case, they can't give a definitive answer based on the VIN. If simply calling the dealership elicited all answers through their copious cooperation, there wouldn't be any need for this forum.
I didn't ask about how to go about getting the part, I asked if anyone had experience with different sized sensors based on the radiator size.
I didn't ask about how to go about getting the part, I asked if anyone had experience with different sized sensors based on the radiator size.
Admonishing from mods happens by private mail. It is counter productive to admonish anyone in public. *
People have varying experience at the dealership. I have personally witnessed people behind the parts counter going out of the way to help customers. Yes their parts price is higher, but no one is forced into purchasing from them. It is free market and if they are priced too high they will not have business.
You can look up the online parts and save yourself the call. The clear advantage is you get genuine parts and the right part There is current thread on spark plugs.
* Mods and Super Mods are there to monitor and administer rules and keep a level of decorum. If you have an issue with a member and which can not be resolved by PM, please contact the mod of your choice. If you have an issue with a certain mod , once again PM directly or contact Senior mod.
Salim
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Lexus Champion
Joined: Nov 2005
Posts: 2,110
Likes: 77
From: OH
Guessing you are looking for # 89428-41010 or equivalent, but have been buying # 89422-35010. Looks like the one that goes in the radiator is stubby and the one that goes up by the thermostat has a long probe. There might even be a 3rd sensor in the head or block.
Last edited by carguy07; Mar 13, 2016 at 06:50 PM.
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