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Old 3 Weeks Ago   #1
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Temp gauge going up to max and not starting

Temp gauge went up to max and engine cut out not overheated got towed home then fault went away and engine running normally . Has happened again today ignition on and temp gauge shoots up red warning light comes on and engine cuts out Any ideas
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Old 3 Weeks Ago   #2
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Re: Temp gauge going up to max and not starting

First thought would be that the temp sensor is failing, and the engine has a safety cutout to prevent overheating causing damage.
High temp reading with engine cold points to sensor or wiring.

Find the temp sensor. There may be moe than one.
Disconnect it and see if the reading drops to zero. If it does, try to start the engine. Don't run it for too long, as it will be running richer for a cold start.

Follow the wiring to ensure not chafed or burnt against anything.
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Old 3 Weeks Ago   #3
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Re: Temp gauge going up to max and not starting

Quote Originally Posted by Ronste View Post
Temp gauge went up to max and engine cut out not overheated got towed home then fault went away and engine running normally . Has happened again today ignition on and temp gauge shoots up red warning light comes on and engine cuts out Any ideas
What version of Ducato does this cry for help, relate to? Please see "sticky" at top of Ducato section.
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Old 3 Weeks Ago   #4
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Re: Temp gauge going up to max and not starting

Fantastic result from Portland Bill you got it right disconnected temp sensor and all ok new one ordered
Thank you again only joined site in middle of a sleepless night and now problem solved
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Old 2 Weeks Ago   #5
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Re: Temp gauge going up to max and not starting

Quote Originally Posted by Ronste View Post
Fantastic result from Portland Bill you got it right disconnected temp sensor and all ok new one ordered
Thank you again only joined site in middle of a sleepless night and now problem solved
I recently had a similar problem.

Mine was a faulty thermostat which I replaced now....after much swearing! lol

Depending on the age of your vehicle, I would consider replacing the thermostat also
if it is very old.

I am now looking into replacing the said Coolant Temperature Sensor?
Trying to determine if that needs replacing also...
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