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Thread: Temp Sensor
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06-21-2017, 05:24 AM #1Junior Member
- Join Date
- Jul 2015
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- Manchester
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- 26
Temp Sensor
The temperature gauge stopped working at weekend, the boat runs fine but can be a pain to start when hot I believe the temperature sensor is faulty but I have found 2 at the rear of the engine can someone tell me what each one does.
The first is to the left (if you have your back to the drivers seat) of the thermostat housing connected to a T which is used to feed the heater.
2017-06-21 07.53.14.jpg
2017-06-21 10.18.11.jpg
The second is on the lower ring of the thermostat housing
2017-06-21 08.00.14.jpg
2017-06-21 10.18.18.jpg
I'm also struggling to find the PCV Value if someone could point me in the right direct that would be great
its a 2000 Mobius V with a 330HP MPI engine
Thanks RoryLast edited by Rorymulderrig; 06-21-2017 at 05:27 AM.
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06-21-2017, 06:42 AM #2
First picture looks to be the temp sensor for your ECM
Second looks like a temp sending unit for your gauge but I'm not positiveMalo <--- Means--Evil or Mean One. This explains a lot.
2013 Mojo 2.5 Skylon Tower. Bestia < Beast >
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06-21-2017, 09:38 AM #3
Isn't the PCV on top of the valve cover? A right angle piece of black plastic in a rubber grommet attached to a hose. Just pull it out if that is what you are looking for.
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06-22-2017, 06:30 AM #4Junior Member
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- Jul 2015
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- Manchester
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Thanks just ordered them from Skidim
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06-26-2017, 02:32 PM #5
When my temp gauge stopped working, I changed my sensor and the gauge itself. Neither fixed it. It was the thermostat. It was stuck open and didnt allow the engine to get to operating temperature. Its a cheap fix. Even if it isnt the thermostat, Id change it out anyway.
Jim Hagen
Madison, Wisconsin
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2011 Moomba Mobius LSV - Exiled
2002 Moomba Mobius LSV - Sold
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07-28-2020, 12:30 PM #6Junior Member
- Join Date
- May 2011
- Location
- Charlotte, NC
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- 14
I was speaking with Discount Inboard Marine about my sensor and they mentioned that a quick test to determine if the sensor was bad was to turn the key so you have power to the dash then remove the lead to the sensor and ground it. If the gauge goes all the way across then the sensor/sending unit is faulty.
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07-29-2020, 09:21 AM #7