Harvey Posted March 18, 2020 Share Posted March 18, 2020 2006 Autocruise on a Peugeot 2.8 HDI base. About four years ago the temp gauge suddenly started to misbehave. As soon as the key was turned, the needle moved to the 'normal' position and stayed there. While the 'van was with my pet mechanic for some other work we discussed the problem and thought it unlikely to be the sender unit as it would probably either not work at all or shoot round to the 'high' position. Anyway we decided to change it any way and it made no difference. So for nearly four years the gauge has performed just like that at every use. This week I fitted a new engine / starter battery as the original one from new was getting a bit tired after fourteen years! I installed the battery, turned on the 'ignition' key and the gauge works! How did that happen then? Something to get your brain cells working on and take your mind of the state of the world :-S Harvey Link to comment Share on other sites More sharing options...
Derek Uzzell Posted March 19, 2020 Share Posted March 19, 2020 Coincidence... Give it a month and the gauge will probably be misbehaving again - this sort of thing is part of electrical equipment’s job description. Link to comment Share on other sites More sharing options...
Harvey Posted March 19, 2020 Author Share Posted March 19, 2020 Ho Ho Derek, I'll put it in my diary: 18th April. :-D I saw no smoke escaping though. Harvey Link to comment Share on other sites More sharing options...
Robinhood Posted March 20, 2020 Share Posted March 20, 2020 You may be interested in this post: https://www.fiatforum.com/ducato/479478-coolant-temperature-gauge-erratic.html Link to comment Share on other sites More sharing options...
Charles Posted March 20, 2020 Share Posted March 20, 2020 Well it's been switched off and on again. Fixes most things these days (lol) Link to comment Share on other sites More sharing options...
Derek Uzzell Posted March 20, 2020 Share Posted March 20, 2020 A long 2009-2019 temperature-gauge thread on MHFun forum. https://www.motorhomefun.co.uk/forum/threads/tempeture-gauge-fiat-ducato.11523/ Many different ‘fixes’ suggested... Link to comment Share on other sites More sharing options...
Harvey Posted March 20, 2020 Author Share Posted March 20, 2020 Thanks for the links, the Fiat forum one fits my gauge defect ( that was) perfectly, so the battery disconnect did fix it it seems. We will see. Harvey Link to comment Share on other sites More sharing options...
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