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 Originally Posted by Lew L
........ So....
No codes, no puddles, no leaking fluid. Poked around to try and find the sensor today. I'll raise her up and see if I can get at it from the bottom. I thought the thermostat was built into the water pump as one unit---- hopefully not. Can the water pump be replaced from the side????
Thanks all.
Lew L
Believe the coolant temp sensor is on top of the engine somewhere by the middle spark plug around the intake and the water pump looks to be next to the oil filter in the middle.
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[B]Thermostat Test Water pump module installed in vehicle Start engine and let engine heat up to operating temperature (higher than 80°C (176°F)). Check if the main supply hose from radiator to water pump module heats up with engine at operating temperature.
THERMOSTAT The thermostat is included in water pump module.
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Very Active Member
That was on that break down on cheapcycle I was telling you about!!!
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I got my info from my manual 
Should point Lew in the right direction
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Very Active Member
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Thanks guys, Looks like I'll take off some more plastic ( I Knew I would have to and it's no big deal). Should be able to get to the aforementioned parts. Lew L
Kaos----- Gone but not forgotten. 
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT. 
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Another part on my manual has the sensor left side of the engine.
CTS Access Refer to BODYsubsection and remove: – LH middle side panel – LH top side panel – LH acoustic panel.
Then this says in the manual
Coolant temperature sensor is located on the cylinder head.
Sorry Lew its one or the other. The left side sounds easier to get to.
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Very Active Member
./
Closer and closer-----------------
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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Keep us posted what you find
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Very Active Member
Lew,
Something else to check is your radiators to make sure they are not plugged up. I know Ann Mayer's 2014 RT had her radiators replaced at the BRP homecoming due to plugged radiators. I also had overheating issues on my 2015 F3 due to plugged radiators. I ended up pulling both out and spent 5 hours cleaning the junk out from the packed fins.
2021 Sea To Sky, 2020 RTL
Isn't it weird that in AMERICA our flag and our culture offend so many people......
but our benefits don't?
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Very Active Member
If it is not running hot (water boiling out of pressure cap) then it's probably just a sensor. I would try that 1st if the radiator is not stopped up.
I have never looked at a water pump on a spyder but on other vehicles I have saw the fan/propeller loosen enough to where it spins on the shaft after the coolant heats up enough to cause a over heating condition. If I were to take it off I would without a doubt replace both the water pump and thermostat. Don't waste your time taking it off to inspect then put it back on. Depending on age I might even replace the hose's.
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Very Active Member
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Thanks guys------ will try to get to the sensor today. I've had those panels off before. I haven't ever heard of a sensor going bad here but with all the sensors on ALL our vehicles----------------------There will be failures.
Lew L
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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Very Active Member
Most panels off--- think I'll have to raise her up to get a good look.
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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From the one picture is on the left side under the center glove box just behind the frame. Behind the air filter box
Thats the CTS sensor.
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Very Active Member
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Is the sensor on the back of the motor???? ---- seems like it from the cheapcycleparts.com schematic drawings. Air box is exposed.
closer and closer.....
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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On the left side next to the frame looks like a two prong connector and is attached to the engine. Below the center console
I guess it could be considered the back.
Wish I could post the picture.
If you disconnect while the engine is running it will cause the fans to turn on. Per the manual
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Very Active Member
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OK I'll look there tomorrow.
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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Very Active Member
 Found it!!
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Well I've got it in sight. I was planning on draining and replacing the coolant anyway. Tight spaces. Not sure how to get the electrical plug undone though. Any tips on draining the coolant??? I know not to use the drain plug but undo hose.
Thanks again for all your help so far. Will need service manual info on testing the temp sensor.
Lew L
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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I will copy and send the test for the sensor when i get home
To drain remove the right lower radiator hose. It will be tight. And the clamp has to be cut off
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Very Active Member
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Can I use a different clamp. A stainless steel screw type???
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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Yes. I never liked them but yes you can.
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CTS Resistance Test at Component 1. Remove main power relay (R3) in LH fuse box. Refer to POWER DISTRIBUTION AND GROUNDSsubsection. CAUTION Do not disconnect CTS when vehicle is powered. If CTS is disconnected while vehicle is powered, the ECM will cause the cooling fans to come on, possibly resulting in injury. 2. Disconnect CTS connector. 3. Using a multimeter set to " ", measure the resistance through the CTS resistance and compare the resistance value obtained to the sensor temperature table. REQUIRED TOOLS FLUKE 115 MULTIMETER (P/N 529 035 868) CTS SENSOR Pin 1 Pin 2
TYPICAL SENSOR TEMPERATURE TABLE TEMPERATURE RESISTANCE (ohms)
°C - °F CTS (Ohms)
40 - 40 - 38457 to 52630
10 -14 - 8208 to 10656
20 - 68 - 2233 to 2780
80 - 176 - 297 to 349
120 - 248 - 105 to 122
If resistance measured is out of specification, replace the CTS. If resistance measured is within specification, reconnect the CTS and carry out the CTS RESISTANCE TEST AT ECM.
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Very Active Member
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Thanks triker,
Numbers seem a jumbled mess with no punctuation. I got some of them figured out. I have test leads and a FLUKE meter.
Kaos----- Gone but not forgotten.
2014 RTS in Circuit Yellow, farkle-ing addiction down to once every few months. ECU FLASH IS GREAT.
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Sorry was copying and pasteing from the manual. Basically its temperature. Then resistance value reading you should get when testing the sensor. I will try and fix it later.
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Ok I updated posted 46 hope that helps.
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CTS Resistance Test at Component
1. Remove main power relay (R3) in LH fuse box. Refer to POWER DISTRIBUTION AND GROUNDSsubsection. CAUTION Do not disconnect CTS when vehicle is powered. If CTS is disconnected while vehicle is powered, the ECM will cause the cooling fans to come on, possibly resulting in injury.
2. Disconnect CTS connector.
3. Using a multimeter set to " ", measure the resistance through the CTS resistance and compare the resistance value obtained to the sensor temperature table. REQUIRED TOOLS FLUKE 115 MULTIMETER (P/N 529 035 868) CTS SENSOR Pin 1 Pin 2
TYPICAL SENSOR TEMPERATURE TABLE TEMPERATURE RESISTANCE (ohms)
°C / °F CTS (Ohms)
40 / 40 38457 - 52630
10 / 14 8208 - 10656
20 / 68 2233 - 2780
80 / 176 297 - 349
120 / 248 105 - 122
If resistance measured is out of specification, replace the CTS.
If resistance measured is within specification, reconnect the CTS and carry out the CTS RESISTANCE TEST AT ECM.
Last edited by Peter Aawen; 06-11-2021 at 05:59 PM.
Reason: Removed extraneous quote delimiter
2014 RTL Platinum
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