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post #1 of 35 (permalink) Old 23-04-2016, 11:21 Thread Starter
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Errant engine/water temp gauge/sender

Been using the new van a lot, done over 1000miles now, and there is a scary reading on the gauge, it goes up to normal nice and slow like all the 2.8jtd engines do, and then stops there, and for no apparent reason, it then start to climb, and will get right up to max temp, I don't think the needle goes any further up

I have of course stopped a few times just to be sure, but oil is up to the mark, Expansion tank is just slightly above max, the water looks and smells healthy enough, a sort of orange/gold colour for the antifreeze I suspect, what rad pipes I can touch feel hot of course but not to the point they burn me, fan is not cutting in either, a fan fault normally shows up on the dash, as I had this on the last van until I had it fixed and cleared it.

Any ideas before I shuffle over to the Fiat Forum, they seem to take an age to respond.
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post #2 of 35 (permalink) Old 23-04-2016, 11:29
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Ok kev that must be worrying, have you tried all the usual things, removing the thermostat, flushing through the system, Did I read in your previous posts that the vehicle had stood unused for some time.I would start with flushing radiator and replace thermostat.If you have an air lock that could cause this.

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post #3 of 35 (permalink) Old 23-04-2016, 11:34 Thread Starter
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Ok kev that must be worrying, have you tried all the usual things, removing the thermostat, flushing through the system, Did I read in your previous posts that the vehicle had stood unused for some time.I would start with flushing radiator and replace thermostat.If you have an air lock that could cause this.

cabby
I see your point but disagree, it's not overheating Phil, it's just displaying like it is, one time it'd been left for almost 2 hours, and the gauge flicked back up to max as soon as I turned on the ignition, which seems to point to the sender, rather than the gauge I think.
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post #4 of 35 (permalink) Old 23-04-2016, 11:48
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Yes, put new one on and try is the only answer then.

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post #5 of 35 (permalink) Old 23-04-2016, 11:48 Thread Starter
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I made it earn it's keep yesterday.

Grub stop at Tibshelf, on M1



The temp problem was the same without the trailer, trailer made no difference at all except to my pocket and speed.

Link to pictures, I did a couple of videos too, but probably best not to post those, I did some of the gauge too

https://www.dropbox.com/sh/jmez5vt6t...evToYTAda?dl=0
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post #6 of 35 (permalink) Old 23-04-2016, 11:49 Thread Starter
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Yes, put new one on and try is the only answer then.

cabby
My thinking too, but it may be a common and different problem.
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post #7 of 35 (permalink) Old 23-04-2016, 12:44
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My first thought would be a high resistance connection between sender and guage. I'm assuming that the sender changes the resistance to earth as temperature rises from the guage so a partial short or open circuit would cause exactly the symptoms you describe. Check and clean all the spade connectors in the circuit before you spend any money.

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post #8 of 35 (permalink) Old 23-04-2016, 14:08
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Kev

Can I ask what you use the trailer for? Is it full of 'stuff'?

ta

Graham

Which ever way you look at it, we are MUCH BETTER OFF in the EU than outside!


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post #9 of 35 (permalink) Old 23-04-2016, 14:25 Thread Starter
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Originally Posted by gaspode View Post
My first thought would be a high resistance connection between sender and guage. I'm assuming that the sender changes the resistance to earth as temperature rises from the guage so a partial short or open circuit would cause exactly the symptoms you describe. Check and clean all the spade connectors in the circuit before you spend any money.
Seems a reasonable, I'll give it look at tomorrow, or at least see if I can spot where it all goes, so many damned wires and hoses under there.
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post #10 of 35 (permalink) Old 23-04-2016, 14:26 Thread Starter
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Kev

Can I ask what you use the trailer for? Is it full of 'stuff'?

ta

Graham
You can ask, but then I'd have to kill you
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