|  | Topic : Have I got a crook coolant temperature sensor? |  |
| | | Stormrider | | Set |  | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 23 Sep 2023 - 05:29 Post title : Have I got a crook coolant temperature sensor? | | | Took my Storm for a run recently and about ten minutes into the ride, the temperature light came on along with engine management fault light.
I rode back home and ran the Dealertool diagnostic program on the bike.
The program threw up a ECI fault code P0117 - Coolant temperature sensor, low voltage, ground short or open circuit.
I cleared the fault code and started the bike and opened up the Sensor Values page
I observed the following:
Everything ran smoothly for about the next ten minutes ( only the neutral light was on)
The temperature rose up gradually to about 60 degrees Celsius
Then suddenly the temperature jumped to 140 degrees and the temperature warning light came on along with the management fault light and the fan.
I let the engine run for about another minute and then the temperature dropped back to around 60 degrees and the fan stopped.
The temperature warning light remained on.
I then switched the motor off.
So I'm thinking it might be a dud sensor. I'd like peoples thoughts on this as I want to be reasonably sure before I start the lengthy and difficult (for me) task of removing the sensor.
Cheers and thanks.
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| | | Leethal | | Zeus | |  | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 23 Sep 2023 - 07:33 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | Have a look in the service manual, sure to be some checks for the sensor.
| Experience is something you get just after you needed it 
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 24 Sep 2023 - 02:08 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Leethal) | | | Thanks Leethal
Mate, I went back to the service manual and one thing stated was that the majority of electrical problems was dirty connections with the ECM. So I'll give them a good clean and see how I go.
Cheers
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| | | Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 24 Sep 2023 - 04:40 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | I have had my fair share of electrical issues and that was one of them, but it was corrosion not dirt.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 10 Oct 2023 - 12:49 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Leethal) | | | Well after going through all the electrical connections and giving them a thorough clean with an electrical spray, the problem still exists. I've tested the resistance of the coolant sensor at the plug under the fuel tank. I got a figure of about 6.7 ohms. The manual gives a figure of between 2.35 to 2.65 ohms
Does this indicate the sensor is stuffed?
Cheers
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| | | Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 10 Oct 2023 - 21:55 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | A few of things aren't right, I think it should take more than ten minutes for the fan to cut in, jumping from 60 to 140 is not normal, the resistance is incorrect.
Can you borrow an infrared thermometer gun to check the temp of the coolant when the dealer tool is saying 140? You would have to check by aiming the gun at the radiator hoses, thermostat housing etc, not sure if the coolant in the expansion tank would give an accurate reading. Have you checked the price and availability of the sensor? ( possibly track down a s/h one on ebay etc) Is the sensor getting the right voltage?
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 10 Oct 2023 - 22:20 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Leethal) | | | Last time I ran the motor after cleaning wires etc, the fan kicked in after about five minutes. The motor was warm to the touch.
What would be the right voltage amount?
The cost of the sensor is relatively cheap (for Triumph) at about $70 (plus a couple of replacement seals for the throttle bodies).
The thing I was trying to avoid was the work involved in replacing the sensor (draining the coolant, removing the starter motor, removing throttle bodies and the throttle cables from the throttle), something I've never done before
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| | | Linkdog | | Thor | |  | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,923 | | Location | : | Groveland, FL., United States |
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| | Posted : 10 Oct 2023 - 22:30 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | 5 min. is way too quick. More like 10 - 15 min. would be normal and when the fan kicks in it should feel like the gates of hell have opened, 103c. is pretty warm.
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 11 Oct 2023 - 01:45 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Linkdog) | | | Yeah I'm thinking more and more that the sensor is stuffed and obviously sending false signals to the ECM. There's instances on other forums where sensors have been needed to be replaced on Thunderbirds (some under warranty)
Cheers
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| | | Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 11 Oct 2023 - 06:07 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | Supply voltage should be 12, I don't think it's part of the canbus system of 5V.
You mentioned a reading of 6.7 ohms, the value for the sensor is 2.35-2.65 kilo ohms at 20C, way different! There is also a test value of 200-400 ohms with a warm engine.
P0117 is short circuit to ground, you then need to go to step 6 which is checking ECM pin A29 .
BTW I have had the throttle bodies off a couple of times and have not had to replace any seals.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
| | Post edited by Leethal on 11 Oct 2023 - 06:11 |
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 11 Oct 2023 - 10:20 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Leethal) | | | Hi Leethal
Thanks for the tip regarding the seals.
I did the resistance test at ambient temperature (around 20 degrees) (fuel tank removed so I couldn't run the motor).
In regards to step 6, how would I check ECM pin A29?
Cheers
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| | | Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 11 Oct 2023 - 21:47 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | Page 10.46 of the SM explains all the checks. step 6 is checking the pin A29 to ground/earth. Continuity check with a multimeter , it should not give a reading.
Getting back to your resistance reading of 6.7 ohms, if that is correct , then it is way different to the specs. ( 2350 to 2650 ohms)
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 13 Oct 2023 - 21:37 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Leethal) | | | Thanks again Leethal for your help
I decided to bite the bullet and replace the sensor (what a bugger of a job and I'm only half way)
There was a slight tear in the insulation exposing the wiring on the old sensor which may have happened when I was extracting it But if it wasn't could this have been the short that Dealertool was picking up?
Anyway I compared it with the new one and checked the resistance. The new one was right in the middle as per the workshop manual with the old one around 6.7 ohms.
While I've got access to them, I've taken the opportunity to replace the spark plugs.
So interesting times ahead as I start putting everything back together and hopefully all systems go!
Cheers
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| | | Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 15 Oct 2023 - 07:06 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | There was a slight tear in the insulation exposing the wiring on the old sensor which may have happened when I was extracting it But if it wasn't could this have been the short that Dealertool was picking up?
No, it would only be a potential issue in the rain.
Good luck.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 21 Oct 2023 - 22:45 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Leethal) | | | Thanks Leethal
Well, I've replaced the coolant temperature sensor and hopefully put everything back in the correct place
Kudos to the person who put the workshop manual out there. For me the job was a first but the manual was a huge help.
The only issue now is that the Dealertool cable decided to go legs up so I've got a new one on order.
As soon as it arrives, I'll be able to do a scan and clear the fault codes.
Cheers and thanks again
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| | | Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 24 Oct 2023 - 06:42 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | I hope it's sorted. 
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| | | Stormrider | | Set | | | Reg. Date | : | 11/12/2011 | | Posts | : | 32 | | Location | : | Atherton , Queensland, Australia |
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| | Posted : 31 Oct 2023 - 22:06 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Leethal) | | | Thanks Leethal for your help.
As the saying goes "Thunderbirds are go!"
I ran Dealertool over the Storm and cleared fault codes, fired her up and everything ran sweetly. No more error codes and even the throttle bodies needed no adjustments.
So, obviously the water coolant sensor was faulty.
Time to get back out on the road
Cheers all
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| | | Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,407 | | Location | : | Australia |
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| | Posted : 02 Nov 2023 - 06:24 Post title : Re: Have I got a crook coolant temperature sensor? (Re: Stormrider) | | | My pleasure, glad it's fixed.
| Experience is something you get just after you needed it
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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